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Real Time Clocks

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Quantity Available	Series	Product Status	Package	Type	Features	Memory Size	Time Format	Date Format	Interface	Voltage - Supply	Voltage - Supply, Battery	Current - Timekeeping (Max)	Operating Temperature	Mounting Type
BQ3285ESS-TR1 RTC, NON-VOLATILE, 1 TIMER(S)	*	Active	Bulk	-	-	-	-	-	-	-	-	-	-	-
BQ3285ESS-N REAL TIME CLOCK, 1 TIMER(S)	*	Active	Bulk	-	-	-	-	-	-	-	-	-	-	-
BQ3285ESS IC RTC CLK/CALENDAR PAR 24-QSOP	-	Obsolete	Tube Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	300u00b5A @ 5V	Surface Mount	24-SSOP
BQ3285ESS RTC, VOLATILE	-	Obsolete	Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	300u00b5A @ 5V	Surface Mount	24-SSOP
BQ3285ES IC RTC CLK/CALENDAR PAR 24-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	300u00b5A @ 5V	Surface Mount	24-SOIC
BQ3285EP IC RTC CLK/CALENDAR PAR 24-DIP	-	Obsolete	Tube Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	300u00b5A @ 5V	Through Hole	24-PDIP
BQ32000D IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Bulk Tube	Clock/Calendar	Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3V ~ 3.6V	1.4V ~ 3.6V	100u00b5A @ 3.3V	Surface Mount	8-SOIC
BQ32000D BQ32000 SERIAL RTC WITH BATTERY	*	Active	Bulk	-	-	-	-	-	-	-	-	-	-	-
AS1810-PTR IC RTC CLK/CALENDAR I2C 8-TDFN	-	Obsolete	Tape & Reel (TR)	-	-	-	-	-	-	-	-	-	-	-
AB1815-T3 IC RTC CLK/CALENDAR SPI 16-QFN	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer	256B	HH:MM:SS:hh	YY-MM-DD-dd	SPI	1.7V ~ 3.6V	1.5V ~ 3.6V	0.17µA ~ 0.22µA @ 1.8V ~ 3V	Surface Mount	16-QFN (3x3)
AB1814-T3 IC RTC CLK/CALENDAR SPI 16-QFN	-	Obsolete	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer	256B	HH:MM:SS:hh	YY-MM-DD-dd	SPI	1.7V ~ 3.6V	1.5V ~ 3.6V	0.17µA ~ 0.22µA @ 1.8V ~ 3V	Surface Mount	16-QFN (3x3)
AB1813-T3 IC RTC CLK/CALENDAR SPI 16-QFN	-	Obsolete	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, SRAM, Trickle-Charger	64B	HH:MM:SS:hh	YY-MM-DD-dd	SPI	1.7V ~ 3.6V	1.5V ~ 3.6V	0.17µA ~ 0.22µA @ 1.8V ~ 3V	Surface Mount	16-QFN (3x3)
AB1811-T3 IC RTC CLK/CALENDAR SPI 16-QFN	-	Obsolete	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, Trickle-Charger	-	HH:MM:SS:hh	YY-MM-DD-dd	SPI	1.7V ~ 3.6V	1.5V ~ 3.6V	0.17µA ~ 0.22µA @ 1.8V ~ 3V	Surface Mount	16-QFN (3x3)
AB1805-T3 IC RTC CLK/CALENDAR I2C 16-QFN	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer	256B	HH:MM:SS:hh	YY-MM-DD-dd	I²C, 2-Wire Serial	1.7V ~ 3.6V	1.5V ~ 3.6V	0.17µA ~ 0.22µA @ 1.8V ~ 3V	Surface Mount	16-QFN (3x3)
AB1804-T3 IC RTC CLK/CALENDAR I2C 16-QFN	-	Obsolete	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer	256B	HH:MM:SS:hh	YY-MM-DD-dd	I²C, 2-Wire Serial	1.7V ~ 3.6V	1.5V ~ 3.6V	0.17µA ~ 0.22µA @ 1.8V ~ 3V	Surface Mount	16-QFN (3x3)
AB1803-T3 IC RTC CLK/CALENDAR I2C 16-QFN	-	Obsolete	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, SRAM, Trickle-Charger	64B	HH:MM:SS:hh	YY-MM-DD-dd	I²C, 2-Wire Serial	1.7V ~ 3.6V	1.5V ~ 3.6V	0.17µA ~ 0.22µA @ 1.8V ~ 3V	Surface Mount	16-QFN (3x3)
AB1801-T3 IC RTC CLK/CALENDAR I2C 16-QFN	-	Obsolete	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, Trickle-Charger	-	HH:MM:SS:hh	YY-MM-DD-dd	I²C, 2-Wire Serial	1.7V ~ 3.6V	1.5V ~ 3.6V	0.17µA ~ 0.22µA @ 1.8V ~ 3V	Surface Mount	16-QFN (3x3)
AB0815-T3 IC RTC CLK/CALENDAR SPI 16-QFN	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer	256B	HH:MM:SS:hh	YY-MM-DD-dd	SPI	1.7V ~ 3.6V	1.5V ~ 3.6V	0.17µA ~ 0.22µA @ 1.8V ~ 3V	Surface Mount	16-QFN (3x3)
AB0814-T3 IC RTC CLK/CALENDAR SPI 16-QFN	-	Obsolete	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer	256B	HH:MM:SS:hh	YY-MM-DD-dd	SPI	1.7V ~ 3.6V	1.5V ~ 3.6V	0.17µA ~ 0.22µA @ 1.8V ~ 3V	Surface Mount	16-QFN (3x3)
AB0813-T3 IC RTC CLK/CALENDAR SPI 16-QFN	-	Obsolete	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, SRAM, Trickle-Charger	64B	HH:MM:SS:hh	YY-MM-DD-dd	SPI	1.7V ~ 3.6V	1.5V ~ 3.6V	0.17µA ~ 0.22µA @ 1.8V ~ 3V	Surface Mount	16-QFN (3x3)
AB0811-T3 IC RTC CLK/CALENDAR SPI 16-QFN	-	Obsolete	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, Trickle-Charger	-	HH:MM:SS:hh	YY-MM-DD-dd	SPI	1.7V ~ 3.6V	1.5V ~ 3.6V	0.17µA ~ 0.22µA @ 1.8V ~ 3V	Surface Mount	16-QFN (3x3)
AB0805-T3 IC RTC CLK/CALENDAR I2C 16-QFN	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer	256B	HH:MM:SS:hh	YY-MM-DD-dd	I²C, 2-Wire Serial	1.7V ~ 3.6V	1.5V ~ 3.6V	0.17µA ~ 0.22µA @ 1.8V ~ 3V	Surface Mount	16-QFN (3x3)
AB0804-T3 IC RTC CLK/CALENDAR I2C 16-QFN	-	Obsolete	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer	256B	HH:MM:SS:hh	YY-MM-DD-dd	I²C, 2-Wire Serial	1.7V ~ 3.6V	1.5V ~ 3.6V	0.17µA ~ 0.22µA @ 1.8V ~ 3V	Surface Mount	16-QFN (3x3)
AB0803-T3 IC RTC CLK/CALENDAR I2C 16-QFN	-	Obsolete	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, SRAM, Trickle-Charger	64B	HH:MM:SS:hh	YY-MM-DD-dd	I²C, 2-Wire Serial	1.7V ~ 3.6V	1.5V ~ 3.6V	0.17µA ~ 0.22µA @ 1.8V ~ 3V	Surface Mount	16-QFN (3x3)
AB0801-T3 IC RTC CLK/CALENDAR I2C 16-QFN	-	Obsolete	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, Trickle-Charger	-	HH:MM:SS:hh	YY-MM-DD-dd	I²C, 2-Wire Serial	1.7V ~ 3.6V	1.5V ~ 3.6V	0.17µA ~ 0.22µA @ 1.8V ~ 3V	Surface Mount	16-QFN (3x3)
AB-RTCMK-32.768KHZ-T3 IC RTC CLK/CALENDAR I2C 8-SMT	-	Obsolete	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, Square Wave Output, TCXO/Crystal	-	HH:MM:SS (12/24 hr)	YY-MM-DD	I²C, 2-Wire Serial	1.3V ~ 5.5V	-	2µA @ 3V	Surface Mount	8-SMT
AB-RTCMK-32.768KHZ-T IC RTC CLK/CALENDAR I2C 8-SMT	-	Active	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output, TCXO/Crystal	-	HH:MM:SS (12/24 hr)	YY-MM-DD	I²C, 2-Wire Serial	1.3V ~ 5.5V	-	2µA @ 3V	Surface Mount	8-SMT
AB-RTCMK-32.768KHZ IC RTC CLK/CALENDAR I2C 8-SMT	-	Obsolete	Bulk	Clock/Calendar	Alarm, Leap Year, Square Wave Output, TCXO/Crystal	-	HH:MM:SS:hh	YY-MM-DD-dd	I²C	1.3V ~ 5.5V	-	2µA @ 3V	Surface Mount	8-SMT
AB-RTCMC-32.768KHZ-ZIZE-S2-T IC RTC CLK/CALENDAR SPI MODULE	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.1V ~ 5.5V	-	0.35µA ~ 0.4µA @ 2V ~ 5V	Surface Mount	Module
AB-RTCMC-32.768KHZ-IBO5-S3-T IC RTC CLK/CALEND I2C 10CLCC ULP	-	Not For New Designs	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Square Wave Output, SRAM, Trickle Charge, Watchdog Timer	512B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.5V ~ 3.6V	1.4V ~ 3.6V	0.29µA ~ 0.33µA @ 1.8V ~ 3V	Surface Mount	Module
AB-RTCMC-32.768KHZ-EOZ9-S3-HAT REAL TIME CLOCK MODULE WITH I2 C	-	Active	Tape & Reel (TR)	Clock/Calendar	Alarm, EEPROM, TCXO/Crystal, Trickle-Charger	-	HH:MM:SS:hh	YY-MM-DD-dd	I²C	1.4V ~ 5.5V, 2.1V ~ 5.5V	1.4V ~ 5.5V	4.6µA ~ 5.5µA @ 1.4V ~ 5V	Surface Mount	Module
AB-RTCMC-32.768KHZ-EOZ9-S3-DBT IC RTC CLK/CALENDAR I2C MODULE	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Trickle-Charger	8B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.4V ~ 5.5V	1.4V ~ 5.5V	1.5µA ~ 2.2µA @ 1.4V ~ 5V	Surface Mount	Module
AB-RTCMC-32.768KHZ-EOA9-S3-HAT DTCXO TEMPERATURE COMPENSATED RE	-	Active	Tape & Reel (TR)	Clock/Calendar	Alarm, EEPROM, TCXO/Crystal, Trickle-Charger	-	HH:MM:SS:hh	YY-MM-DD-dd	SPI	1.4V ~ 5.5V, 2.1V ~ 5.5V	1.4V ~ 5.5V	4.6µA ~ 5.5µA @ 1.4V ~ 5V	Surface Mount	Module
AB-RTCMC-32.768KHZ-EOA9-S3-DBT IC RTC CLK/CALENDAR SPI MODULE	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Trickle-Charger	8B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.4V ~ 5.5V	1.4V ~ 5.5V	1.5µA ~ 2.2µA @ 1.4V ~ 5V	Surface Mount	Module
AB-RTCMC-32.768KHZ-B5ZE-S3-T IC RTC CLK/CALENDAR I2C MODULE	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.2V ~ 5.5V	1.8V ~ 5.5V	0.5µA @ 2V ~ 5V	Surface Mount	Module
AB-RTCMC-32.768KHZ-B5GA-S3-T IC RTC CLK/CALENDAR I2C MODULE	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.2V ~ 5.5V	-	0.45µA ~ 0.55µA @ 2V ~ 5V	Surface Mount	Module
AB-RTCMC-32.768KHZ-AIGZ-S7-T IC RTC CLK/CALENDAR I2C 8-CLCC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1V ~ 4.4V	-	0.4µA ~ 0.95µA @ 1V ~ 4.4V	Surface Mount	8-CLCC (3.2x1.5)
A3024SO20A+ RTC. LOW POWER WITH BUILT-IN 32K	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, RAM	8B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	-	2V ~ 5.5V	-	10u00b5A ~ 15u00b5A @ 3V ~ 5V	Surface Mount	20-SO
1339C-31SRI8 IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
1339C-31SRI IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
1339BC-31SRGI8 IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
1339BC-31SRGI IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
1339B-31DVGI8 TIMING REAL TIME CLOCK	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C	2.7V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-TSSOP
1339B-31DVGI TIMING REAL TIME CLOCK	-	Obsolete	Bulk	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C	2.7V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-TSSOP
1339AC-31SRGI8 IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.7V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
1339AC-31SRGI IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.7V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
1339AC-31CSRGI8 IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
1339AC-31CSRGI IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
1339AC-2SRGI8 IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.7V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
1339AC-2SRGI IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.7V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
1339A-31DVGI8 TIMING REAL TIME CLOCK	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C	2.7V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-TSSOP
1339A-31DVGI TIMING REAL TIME CLOCK	-	Obsolete	Bulk	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C	2.7V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-TSSOP
1339-31DVGI8 IC RTC CLK/CALENDAR I2C 8-MSOP	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-TSSOP
1339-31DVGI IC RTC CLK/CALENDAR I2C 8-MSOP	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-TSSOP
1339-31DCGI8 IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-SOIC
1339-31DCGI IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-SOIC
1339-2DVGI8 IC RTC CLK/CALENDAR I2C 8-MSOP	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-TSSOP
1339-2DVGI IC RTC CLK/CALENDAR I2C 8-MSOP	-	Obsolete	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-TSSOP
1339-2DCGI8 IC RTC CLK/CALENDAR I2C 8-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-SOIC
1339-2DCGI IC RTC CLK/CALENDAR I2C 8-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-SOIC
1338C-31SRI8 IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	5u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
1338C-31SRI IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tube	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	5u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
1338C-18SRI8 IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	2u00b5A @ 3.3V	Surface Mount	16-SOIC
1338C-18SRI IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tube	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	2u00b5A @ 3.3V	Surface Mount	-
1338AC-31SRGI8 IC RTC CLK/CALENDAR I2C 16SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	5u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
1338AC-31SRGI IC RTC CLK/CALENDAR I2C 16SOIC	-	Obsolete	Tube	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	5u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
1338AC-18SRGI8 IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 3.7V	2u00b5A @ 3.3V	Surface Mount	16-SOIC
1338AC-18SRGI IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tube	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 3.7V	2u00b5A @ 3.3V	Surface Mount	16-SOIC
1338A-31DVGI8 TIMING REAL TIME CLOCK	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56b	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C	2.7V ~ 5.5V	1.3V ~ 3.7V	5u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-TSSOP
1338A-31DVGI TIMING REAL TIME CLOCK	-	Obsolete	Bulk	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56b	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C	2.7V ~ 5.5V	1.3V ~ 3.7V	5u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-TSSOP
1338-31DVGI8 IC RTC CLK/CALENDAR I2C 8-TSSOP	-	Active	Tape & Reel (TR)	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	5u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-MSOP
1338-31DVGI IC RTC CLK/CALENDAR I2C 8-TSSOP	-	Active	Tube	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	5u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-MSOP
1338-31DCGI IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	5u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-SOIC
1338-18DVGI8 IC RTC CLK/CALENDAR I2C 8-TSSOP	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 3.7V	2u00b5A @ 3.3V	Surface Mount	8-MSOP
1338-18DVGI IC RTC CLK/CALENDAR I2C 8-TSSOP	-	Obsolete	Tube	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 3.7V	2u00b5A @ 3.3V	Surface Mount	8-MSOP
1338-18DCGI8 IC RTC CLK/CALENDAR I2C 8-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 3.7V	2u00b5A @ 3.3V	Surface Mount	8-SOIC
1338-18DCGI IC RTC CLK/CALENDAR I2C 8-SOIC	-	Obsolete	Tube	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 3.7V	2u00b5A @ 3.3V	Surface Mount	8-SOIC
1337GNLGI8 IC RTC CLK/CAL I2C 16-VFQFPN	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6µA @ 1.3V ~ 1.8V	Surface Mount	16-QFN (3x3)
1337GNLGI IC RTC CLK/CAL I2C 16-VFQFPN	-	Obsolete	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6µA @ 1.3V ~ 1.8V	Surface Mount	16-QFN (3x3)
1337GDVGI8 IC RTC CLK/CALENDAR I2C 8-TSSOP	-	Active	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6u00b5A @ 1.3V ~ 1.8V	Surface Mount	8-MSOP
1337GDVGI IC RTC CLK/CALENDAR I2C 8-TSSOP	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6u00b5A @ 1.3V ~ 1.8V	Surface Mount	8-MSOP
1337GDCGI8 IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6u00b5A @ 1.3V ~ 1.8V	Surface Mount	8-SOIC
1337GDCGI IC RTC CLK/CALENDAR I2C 8-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6u00b5A @ 1.3V ~ 1.8V	Surface Mount	8-SOIC
1337GCSRI8 IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6u00b5A @ 1.3V ~ 1.8V	Surface Mount	16-SOIC
1337GCSRI IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6u00b5A @ 1.3V ~ 1.8V	Surface Mount	16-SOIC
1337DVGI8 IC RTC CLK/CALENDAR I2C 8-MSOP	-	Active	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6u00b5A @ 1.3V ~ 1.8V	Surface Mount	8-TSSOP
1337DVGI IC RTC CLK/CALENDAR I2C 8-MSOP	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6u00b5A @ 1.3V ~ 1.8V	Surface Mount	8-TSSOP
1337DCGI8 IC RTC CLK/CALENDAR I2C 8-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6u00b5A @ 1.3V ~ 1.8V	Surface Mount	8-SOIC
1337DCGI IC RTC CLK/CALENDAR I2C 8-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6u00b5A @ 1.3V ~ 1.8V	Surface Mount	8-SOIC
1337CSRI8 TIMING REAL TIME CLOCK	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C	1.8V ~ 5.5V	1.3V ~ 3.7V	0.6u00b5A @ 1.3V ~ 1.8V	Surface Mount	16-SOIC
1337CSRI TIMING REAL TIME CLOCK	-	Obsolete	Bulk	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C	1.8V ~ 5.5V	1.3V ~ 3.7V	0.6u00b5A @ 1.3V ~ 1.8V	Surface Mount	16-SOIC
1337BCSRGI8 IC RTC CLK/CALENDAR I2C 8-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C	1.8V ~ 5.5V	-	-	Surface Mount	16-SOIC
1337BCSRGI IC RTC CLK/CALENDAR I2C 8-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C	1.8V ~ 5.5V	-	-	Surface Mount	16-SOIC
1337AGDVGI8 IC RTC CLK/CALENDAR I2C 8-TSSOP	-	Active	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.3u00b5A @ 1.3V ~ 1.8V	Surface Mount	8-TSSOP
1337AGDVGI IC RTC CLK/CALENDAR I2C 8-TSSOP	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.3u00b5A @ 1.3V ~ 1.8V	Surface Mount	8-TSSOP
1337AGDCGI8 IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.3u00b5A @ 1.3V ~ 1.8V	Surface Mount	8-SOIC
1337AGDCGI IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.3u00b5A @ 1.3V ~ 1.8V	Surface Mount	8-SOIC
1337AGCSRGI8 IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.3u00b5A @ 1.3V ~ 1.8V	Surface Mount	16-SOIC
1337AGCSRGI IC RTC CLK/CALENDAR I2C 16-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.3u00b5A @ 1.3V ~ 1.8V	Surface Mount	16-SOIC
1337ACSRI TIMING REAL TIME CLOCK	-	Obsolete	Bulk	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C	1.8V ~ 5.5V	1.3V ~ 3.7V	0.6u00b5A @ 1.3V ~ 1.8V	Surface Mount	16-SOIC
PCF8593T/1,112 IC RTC CLK/CALENDAR I2C 8-SOIC	-	Discontinued at Digi-Key	Tube	Clock/Calendar	Alarm, NVSRAM	8B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.5V ~ 6V	-	8u00b5A ~ 15u00b5A @ 2V ~ 5V	Surface Mount	8-SO
PCF8583BS,518 IC RTC CLK/CALENDAR I2C 20-VQFN	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, NVSRAM, Square Wave Output	240B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD	I²C, 2-Wire Serial	2.5V ~ 6V	-	10µA ~ 50µA @ 1V ~ 5V	Surface Mount	20-HVQFN (5x5)
PCF8564AU/5GC/1,01 IC RTC CLK/CALENDAR I2C DIE	-	Obsolete	Bulk	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1V ~ 5.5V	-	0.6µA ~ 0.75µA @ 2V ~ 5V	Surface Mount	Die
PCF8564AU/5BD/1,01 IC RTC/CALENDAR UNCASED DIE	*	Obsolete	Bulk	-	-	-	-	-	-	-	-	-	-	-
PCF8564ACX9/1,005 IC RTC CLK/CALENDAR I2C DIE	-	Obsolete	Bulk	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1V ~ 5.5V	-	0.6µA ~ 0.75µA @ 2V ~ 5V	Surface Mount	Die
PCF8563T/F4,118 IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae Bulk	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6u00b5A ~ 0.75u00b5A @ 2V ~ 5V	Surface Mount	8-SO
PCF8563T/F4,112 IC RTC CLK/CALENDAR I2C 8-SOIC	-	Discontinued at Digi-Key	Tube Tube	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6u00b5A ~ 0.75u00b5A @ 2V ~ 5V	Surface Mount	8-SO
PCF8563T/5,518 IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae Bulk	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6u00b5A ~ 0.75u00b5A @ 2V ~ 5V	Surface Mount	8-SO
PCF85263ATT/AJ IC RTC CLK/CALENDAR I2C 8TSSOP	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	0.9V ~ 5.5V	0.9V ~ 5.5V	0.885u00b5A @ 3.3V	Surface Mount	8-TSSOP
PCF8523TS/1,112 IC RTC CLK/CALENDAR I2C 14-TSSOP	-	Obsolete	Tube Tube	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.6V ~ 5.5V	1.8V ~ 5.5V	0.5u00b5A @ 2V ~ 5V	Surface Mount	14-TSSOP
PCF8523TK/1,118 IC RTC CLK/CALENDAR I2C 8-HVSON	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel® Bulk	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.6V ~ 5.5V	1.8V ~ 5.5V	0.5µA @ 2V ~ 5V	Surface Mount	8-HVSON (4x4)
PCF2129T/2,518 IC RTC CLK/CAL I2C/SPI 16-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 4.2V	1.8V ~ 4.2V	1.5u00b5A @ 3.3V	Surface Mount	16-SO
PCF2129AT/2,518 IC RTC CLK/CAL I2C/SPI 20-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae Bulk	Clock/Calendar	Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 4.2V	1.8V ~ 4.2V	1.5u00b5A @ 3.3V	Surface Mount	20-SO
PCF2129AT/1,518 IC RTC CLK/CALENDAR I2C 20-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 4.2V	1.8V ~ 4.2V	1.5u00b5A @ 3.3V	Surface Mount	20-SO
PCF2129AT/1,512 IC RTC CLK/CALENDAR I2C 20-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 4.2V	1.8V ~ 4.2V	1.5u00b5A @ 3.3V	Surface Mount	20-SO
PCF2127T/2Y IC RTC CLK/CAL I2C/SPI 16-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer	512B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 4.2V	1.8V ~ 4.2V	1.5u00b5A @ 3.3V	Surface Mount	16-SO
PCF2127AT/2Y IC RTC CLK/CAL I2C/SPI 20-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer	512B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 4.2V	1.8V ~ 4.2V	1.5u00b5A @ 3.3V	Surface Mount	20-SO
PCF2127AT/1,518 IC RTC CLK/CAL I2C/SPI 20-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer	512B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 4.2V	1.8V ~ 4.2V	1.5u00b5A @ 3.3V	Surface Mount	20-SO
PCF2127AT/1,512 IC RTC CLK/CAL I2C/SPI 20-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer	512B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 4.2V	1.8V ~ 4.2V	1.5u00b5A @ 3.3V	Surface Mount	20-SO
PCF2123U/5GA/1,015 IC RTC/CALENDAR SPI UNCASED	*	Obsolete	Bulk	-	-	-	-	-	-	-	-	-	-	-
PCF2123U/12AA/1,00 IC RTC/CALENDAR SPI UNCASED	*	Obsolete	Bulk	-	-	-	-	-	-	-	-	-	-	-
PCF2123TS/1,118 IC RTC CLK/CALENDAR SPI 14-TSSOP	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae Bulk	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.6V ~ 5.5V	-	0.33u00b5A ~ 0.38u00b5A @ 2V ~ 5V	Surface Mount	14-TSSOP
PCF2123TS/1,112 IC RTC CLK/CALENDAR SPI 14-TSSOP	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.6V ~ 5.5V	-	0.33u00b5A ~ 0.38u00b5A @ 2V ~ 5V	Surface Mount	14-TSSOP
PCF2123BS/1,518 IC RTC CLK/CALENDAR SPI 16-HVQFN	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.6V ~ 5.5V	-	0.33µA ~ 0.38µA @ 2V ~ 5V	Surface Mount	16-HVQFN (3x3)
PCF2123BS/1,512 IC RTC CLK/CALENDAR SPI 16-HVQFN	-	Discontinued at Digi-Key	Tube Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.6V ~ 5.5V	-	0.33µA ~ 0.38µA @ 2V ~ 5V	Surface Mount	16-HVQFN (3x3)
PCA8802UG/12KB/1,0 IC RTC BINARY CNT I2C 8-WLCSP	-	Obsolete	Bulk	Binary Counter	Square Wave Output, Unique ID	-	Binary	Binary	I²C, 2-Wire Serial	1.6V ~ 5.5V	-	0.4µA @ 1.6V ~ 5.5V	Surface Mount	8-WLCSP
PCA8802U/2AA/1,026 IC RTC BINARY CNT I2C 8-WLCSP	-	Obsolete	Tray	Binary Counter	Square Wave Output, Unique ID	-	Binary	Binary	I²C, 2-Wire Serial	1.6V ~ 5.5V	-	0.4µA @ 1.6V ~ 5.5V	-	Die
PCA8802CX8/B/1,027 IC RTC BINARY CNT I2C DIE	-	Obsolete	Tape & Reel (TR)	Binary Counter	Square Wave Output, Unique ID	-	Binary	Binary	I²C, 2-Wire Serial	1.6V ~ 5.5V	-	0.4µA @ 1.6V ~ 5.5V	-	Die
PCA8565BS/1,118 IC RTC CLK/CALENDAR I2C 10-HVSON	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.8V ~ 5.5V	-	1.2µA ~ 5µA @ 2V ~ 5V	Surface Mount	10-HVSON (3x3)
PCA2129T/Q900/2,51 IC RTC CLK/CAL I2C/SPI 16-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 4.2V	1.8V ~ 4.2V	1.5u00b5A @ 3.3V	Surface Mount	16-SO
PCA2125TS/1,118 IC RTC CLK/CALENDAR SPI 14-TSSOP	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.6V ~ 5.5V	-	1.8u00b5A @ 2V ~ 5V	Surface Mount	14-TSSOP
PCA2125TS/1,112 IC RTC CLK/CALENDAR SPI 14-TSSOP	-	Obsolete	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.6V ~ 5.5V	-	1.8u00b5A @ 2V ~ 5V	Surface Mount	14-TSSOP
PCA21125T/Q900/1,1 IC RTC CLK/CALENDAR SPI 14-TSSOP	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae Bulk	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.6V ~ 5.5V	-	30.3u00b5A @ 2V ~ 5V	Surface Mount	14-TSSOP
MCP79522-I/MS IC RTC CLK/CALENDAR SPI 10-MSOP	-	Active	Tube	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1u00b5A @ 1.8V ~ 3.6V	Surface Mount	10-MSOP
MCP79520-I/MS IC RTC CLK/CALENDAR SPI 10-MSOP	-	Active	Tube	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1u00b5A @ 1.8V ~ 3.6V	Surface Mount	10-MSOP
MCP79511-I/MS IC RTC CLK/CALENDAR SPI 10-MSOP	-	Active	Tube	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1u00b5A @ 1.8V ~ 3.6V	Surface Mount	10-MSOP
MCP79411-I/SN IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2u00b5A @ 3.3V	Surface Mount	8-SOIC
MCP79410T-I/ST IC RTC CLK/CALENDAR I2C 8-TSSOP	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2u00b5A @ 3.3V	Surface Mount	8-TSSOP
MCP79410-I/MS IC RTC CLK/CALENDAR I2C 8-MSOP	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2u00b5A @ 3.3V	Surface Mount	8-MSOP
MCP7940NT-I/ST IC RTC CLK/CALENDAR I2C 8-TSSOP	Automotive, AEC-Q100	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	1.5V ~ 5.5V	1.2u00b5A @ 3.3V	Surface Mount	8-TSSOP
MCP7940NT-I/MNY IC RTC CLK/CALENDAR I2C 8-TDFN	Automotive, AEC-Q100	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2µA @ 3.3V	Surface Mount	8-TDFN (2x3)
MCP7940N-E/SN IC RTC CLK/CALENDAR I2C 8-SOIC	Automotive, AEC-Q100	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2u00b5A @ 3.3V	Surface Mount	8-SOIC
MCP7940N-E/MS IC RTC CLK/CALENDAR I2C 8-MSOP	Automotive, AEC-Q100	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2u00b5A @ 3.3V	Surface Mount	8-MSOP
MCP7940MT-I/MS IC RTC CLK/CALENDAR I2C 8-MSOP	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	1u00b5A @ 5.5V	Surface Mount	8-MSOP
MCP7940M-I/SN IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	1u00b5A @ 5.5V	Surface Mount	8-SOIC
MCP7940M-I/MS IC RTC CLK/CALENDAR I2C 8-MSOP	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	1u00b5A @ 5.5V	Surface Mount	8-MSOP
MCP79402-I/SN IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2u00b5A (Typ) @ 3.3V	Surface Mount	8-SOIC
MCP79401-I/SN IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2u00b5A (Typ) @ 3.3V	Surface Mount	8-SOIC
MCP79401-I/MS IC RTC CLK/CALENDAR I2C 8-MSOP	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2u00b5A (Typ) @ 3.3V	Surface Mount	8-MSOP
MAX31329ELB+ INTEGRATED RC17 W/ QST CRYSTAL	-	Active	Tray	Clock/Calendar	Alarm, Leap Year, RAM, Trickle Charger	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C	1.6V ~ 5.5V	1.6V ~ 5.5V	420nA ~ 610nA @ 1.6V ~ 5.5V	Surface Mount	10-LGA (5x5)
M48T58Y-70PC1 IC RTC CLK/CALENDAR PAR 28-DIP	Timekeeperu00ae	Active	Tube	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	3mA @ 4.5V ~ 5.5V	Through Hole	28-PCDIP, CAPHATu00ae
M48T35Y-70MH1F IC RTC CLK/CALENDAR PAR 28SOH	Timekeeperu00ae	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	2mA @ 4.75V ~ 5.5V	Surface Mount	28-SOH
M48T18-150PC1 IC RTC CLK/CALENDAR PAR 28DIP	Timekeeperu00ae	Active	Tube	Clock/Calendar	Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	3mA @ 4.5V ~ 5.5V	Through Hole	28-PCDIP, CAPHATu00ae
M48T12-70PC1 IC RTC CLK/CALENDAR PAR 24DIP	Timekeeperu00ae	Active	Tube	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	3mA @ 4.5V ~ 5.5V	Through Hole	24-PCDIP, CAPHATu00ae
M48T08-100PC1 IC RTC CLK/CALENDAR PAR 28DIP	Timekeeperu00ae	Active	Tube	Clock/Calendar	Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.75V ~ 5.5V	-	3mA @ 4.7V ~ 5.5V	Through Hole	28-PCDIP, CAPHATu00ae
M48T02-70PC1 IC RTC CLK/CALENDAR PAR 24DIP	Timekeeperu00ae	Active	Tube	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.75V ~ 5.5V	-	3mA @ 4.7V ~ 5.5V	Through Hole	24-PCDIP, CAPHATu00ae
M41T93SMY6F IC RTC CLK/CALENDAR SPI 18-SOX	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	7B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	SPI	3V ~ 5.5V	1.8V ~ 5.5V	10µA @ 5.5V	Surface Mount	18-SOX
M41T93RQA6F IC RTC CLK/CALENDAR SPI 16-QFN	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	7B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	SPI	2.7V ~ 5.5V	1.8V ~ 5.5V	10µA @ 5.5V	Surface Mount	16-QFN (4x4)
M41T83ZQA6F IC RTC CLK/CALENDAR I2C 16-QFN	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	7B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.38V ~ 5.5V	2V ~ 5.5V	10µA @ 5.5V	Surface Mount	16-QFN (4x4)
M41T83ZMY6F IC RTC CLK/CALENDAR I2C 18-SOX	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	7B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.38V ~ 5.5V	2V ~ 5.5V	10µA @ 5.5V	Surface Mount	18-SOX
M41T83SMY6F IC RTC CLK/CALENDAR I2C 18-SOX	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	7B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	3V ~ 5.5V	2V ~ 5.5V	10µA @ 5.5V	Surface Mount	18-SOX
M41T83RMY6F IC RTC CLK/CALENDAR I2C 18-SOX	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	7B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.7V ~ 5.5V	2V ~ 5.5V	10µA @ 5.5V	Surface Mount	18-SOX
M41T81SM6F IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.7V ~ 5.5V	2V ~ 3.5V	100u00b5A @ 2.7V ~ 5.5V	Surface Mount	8-SOIC
M41T80M6F IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2V ~ 5.5V	-	2.4u00b5A ~ 31u00b5A @ 2V ~ 5.5V	Surface Mount	8-SOIC
M41T11MH6F IC RTC CLK/CALENDAR I2C 28-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Leap Year, NVSRAM	56B	HH:MM:SS	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2V ~ 5.5V	2.5V ~ 3.5V	70u00b5A @ 2V ~ 5.5V	Surface Mount	28-SOH
M41T00SM6F IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.7V ~ 5.5V	2V ~ 3.5V	70u00b5A @ 2.7V ~ 5.5V	Surface Mount	8-SOIC
ISL12057IUZ-T IC RTC CLK/CALENDAR I2C 8-MSOP	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 3.6V	-	0.65u00b5A @ 1.8V	Surface Mount	8-MSOP
ISL12057IBZ IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 3.6V	-	0.65u00b5A @ 1.8V	Surface Mount	8-SOIC
ISL12026AIBZ IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.7V ~ 5.5V	1.8V ~ 5.5V	10u00b5A ~ 20u00b5A @ 2.7V ~ 5.5V	Surface Mount	8-SOIC
ISL12020MIRZ-T7A IC RTC CLK/CALENDAR I2C 20-DFN	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Clock/Calendar	Alarm, Daylight Savings, Leap Year, SRAM	128B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.7V ~ 5.5V	1.8V ~ 5.5V	14µA ~ 15µA @ 3V ~ 5V	Surface Mount	20-DFN (5.5x4.0)
ISL12020MIRZ IC RTC CLK/CALENDAR I2C 20-DFN	-	Active	Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, SRAM	128B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.7V ~ 5.5V	1.8V ~ 5.5V	14µA ~ 15µA @ 3V ~ 5V	Surface Mount	20-DFN (5.5x4.0)
ISL12008IB8Z IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.7V ~ 5.5V	1.8V ~ 5.5V	4u00b5A ~ 6u00b5A @ 3V ~ 5V	Surface Mount	8-SOIC
DS3234SN#T&R IC RTC CLK/CALENDAR SPI 20-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal	256B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	2V ~ 5.5V	2V ~ 3.8V	120u00b5A ~ 160u00b5A @ 3.63V ~ 5.5V	Surface Mount	20-SOIC
DS3234SN# IC RTC CLK/CALENDAR SPI 20-SOIC	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal	256B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	2V ~ 5.5V	2V ~ 3.8V	120u00b5A ~ 160u00b5A @ 3.63V ~ 5.5V	Surface Mount	20-SOIC
DS3234S#T&R IC RTC CLK/CALENDAR SPI 20-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal	256B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	2V ~ 5.5V	2V ~ 3.8V	120u00b5A ~ 160u00b5A @ 3.63V ~ 5.5V	Surface Mount	20-SOIC
DS3234S# IC RTC CLK/CALENDAR SPI 20-SOIC	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal	256B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	2V ~ 5.5V	2V ~ 3.8V	120u00b5A ~ 160u00b5A @ 3.63V ~ 5.5V	Surface Mount	20-SOIC
DS3232SN#T&R IC RTC CLK/CALENDAR I2C 20-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal	236B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.3V ~ 5.5V	2.3V ~ 5.5V	120u00b5A ~ 160u00b5A @ 3.3V ~ 5.5V	Surface Mount	20-SOIC
DS3232SN# IC RTC CLK/CALENDAR I2C 20-SOIC	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal	236B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.3V ~ 5.5V	2.3V ~ 5.5V	120u00b5A ~ 160u00b5A @ 3.3V ~ 5.5V	Surface Mount	20-SOIC
DS3232MZ/V+ IC RTC CLK/CALENDAR I2C 8-SOIC	Automotive, AEC-Q100	Not For New Designs	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM	236B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.3V ~ 4.5V	2.3V ~ 4.5V	175u00b5A @ 2.3V ~ 4.5V	Surface Mount	8-SOIC
DS3232MZ+TRL IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM	236B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.3V ~ 4.5V	2.3V ~ 4.5V	175u00b5A @ 2.3V ~ 4.5V	Surface Mount	8-SOIC
DS3231SN#T&R IC RTC CLK/CALENDAR I2C 16-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output, TCXO/Crystal	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.3V ~ 5.5V	2.3V ~ 5.5V	110u00b5A ~ 170u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
DS3231SN# IC RTC CLK/CALENDAR I2C 16-SOIC	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, TCXO/Crystal	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.3V ~ 5.5V	2.3V ~ 5.5V	110u00b5A ~ 170u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
DS3231S#T&R IC RTC CLK/CALENDAR I2C 16-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output, TCXO/Crystal	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.3V ~ 5.5V	2.3V ~ 5.5V	110u00b5A ~ 170u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
DS3231MZ+TRL IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.3V ~ 5.5V	2.3V ~ 5.5V	130u00b5A ~ 200u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-SOIC
DS3231MZ+ IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.3V ~ 5.5V	2.3V ~ 5.5V	130u00b5A ~ 200u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-SOIC
DS17487-5+ IC RTC CLK/CALENDAR PAR 24-EDIP	-	Active	Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	4KB	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	3mA @ 4.5V ~ 5.5V	Through Hole	24-EDIP
DS1682S+T&R IC RTC ELAPSED CNT I2C 8-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Elapsed Time Counter	Alarm, EEPROM	10B	Binary	Binary	Iu00b2C, 2-Wire Serial	2.5V ~ 5.5V	-	4u00b5A ~ 15u00b5A @ 3V ~ 5.5V	Surface Mount	8-SOIC
DS1682S+ IC RTC ELAPSED CNT I2C 8-SOIC	-	Active	Tube	Elapsed Time Counter	Alarm, EEPROM	10B	Binary	Binary	Iu00b2C, 2-Wire Serial	2.5V ~ 5.5V	-	4u00b5A ~ 15u00b5A @ 3V ~ 5.5V	Surface Mount	8-SOIC
DS1672S-33+ IC RTC BINARY CNT I2C 8-SOIC	-	Active	Tube	Binary Counter	Trickle-Charger	-	Binary	Binary	Iu00b2C, 2-Wire Serial	2.97V ~ 3.63V	1.3V ~ 3.63V	500u00b5A @ 3.63V	Surface Mount	8-SOIC
DS1501YZN+ IC RTC CLK/CALENDAR PAR 28-SOIC	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K	256B	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	5mA @ 4.5V ~ 5.5V	Surface Mount	28-SOIC
DS1501WZN+T&R IC RTC CLK/CALENDAR PAR 28-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K	256B	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	3V ~ 3.6V	2.5V ~ 3.7V	4mA @ 3V ~ 3.6V	Surface Mount	28-SOIC
DS1501WZN+ IC RTC CLK/CALENDAR PAR 28-SOIC	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K	256B	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	3V ~ 3.6V	2.5V ~ 3.7V	4mA @ 3V ~ 3.6V	Surface Mount	28-SOIC
DS1390U-33+ IC RTC CLK/CALENDAR SPI 10-USOP	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	2.97V ~ 5.5V	1.3V ~ 5.5V	175u00b5A @ 2.97V ~ 5.5V	Surface Mount	10-uMAX/uSOP
DS1388Z-33+T&R IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	EEPROM, Leap Year, Supervisor, Trickle-Charger, Watchdog Timer	512B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.97V ~ 3.63V	1.3V ~ 5.5V	150u00b5A @ 2.97V ~ 3.63V	Surface Mount	8-SOIC
DS1388Z-33+ IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	EEPROM, Leap Year, Supervisor, Trickle-Charger, Watchdog Timer	512B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.97V ~ 3.63V	1.3V ~ 5.5V	150u00b5A @ 2.97V ~ 3.63V	Surface Mount	8-SOIC
DS1374U-18+ IC RTC BINARY CNT I2C 10-USOP	-	Active	Tube	Binary Counter	Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer	-	Binary	Binary	Iu00b2C, 2-Wire Serial	1.71V ~ 1.89V	1.3V ~ 3.7V	100u00b5A @ 1.71V ~ 1.89V	Surface Mount	10-uMAX/uSOP
DS1340Z-33+ IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	Leap Year, Trickle-Charger	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.97V ~ 5.5V	1.3V ~ 5.5V	150u00b5A @ 5.5V	Surface Mount	8-SOIC
DS1340Z-18+ IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	Leap Year, Trickle-Charger	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.71V ~ 5.5V	1.3V ~ 3.7V	100u00b5A @ 1.89V	Surface Mount	8-SOIC
DS1340U-33+ IC RTC CLK/CALENDAR I2C 8-USOP	-	Active	Tube	Clock/Calendar	Leap Year, Trickle-Charger	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.97V ~ 5.5V	1.3V ~ 5.5V	150u00b5A @ 5.5V	Surface Mount	8-uMAX/uSOP
DS1339U-33+ IC RTC CLK/CALENDAR I2C 8-USOP	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.97V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 5.5V	Surface Mount	8-uMAX/uSOP
DS1339C-33# IC RTC CLK/CALENDAR I2C 16-SOIC	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.97V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 5.5V	Surface Mount	16-SOIC
DS1338Z-33+ IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3V ~ 5.5V	1.3V ~ 3.7V	125u00b5A ~ 200u00b5A @ 3.63V ~ 5.5V	Surface Mount	8-SOIC
DS1338Z-3+ IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	2.7V ~ 5.5V	1.3V ~ 3.7V	200u00b5A @ 3.3V	Surface Mount	8-SOIC
DS1338Z-18+ IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.71V ~ 5.5V	1.3V ~ 3.7V	100u00b5A @ 1.89V	Surface Mount	8-SOIC
DS1338C-33#T&R IC RTC CLK/CALENDAR I2C 16-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3V ~ 5.5V	1.3V ~ 3.7V	125u00b5A ~ 200u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
DS1338C-33# IC RTC CLK/CALENDAR I2C 16-SOIC	-	Active	Tube	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	3V ~ 5.5V	1.3V ~ 3.7V	125u00b5A ~ 200u00b5A @ 3.63V ~ 5.5V	Surface Mount	16-SOIC
DS1337U+ IC RTC CLK/CALENDAR I2C 8-USOP	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6u00b5A @ 1.3V ~ 1.8V	Surface Mount	8-uMAX/uSOP
DS1337C#T&R IC RTC CLK/CALENDAR I2C 16-SOIC	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6u00b5A @ 1.3V ~ 1.8V	Surface Mount	16-SOIC
DS1307ZN+ IC RTC CLK/CALENDAR I2C 8-SOIC	-	Active	Tube	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Iu00b2C, 2-Wire Serial	4.5V ~ 5.5V	2V ~ 3.5V	200u00b5A @ 5V	Surface Mount	8-SOIC
DS1306EN+ IC RTC CLK/CALENDAR SPI 20-TSSOP	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	2V ~ 5.5V	2V ~ 5.5V	25.3u00b5A ~ 81u00b5A @ 2V ~ 5V	Surface Mount	20-TSSOP
DS1305EN+T&R IC RTC CLK/CALENDAR SPI 20-TSSOP	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, NVSRAM, Trickle-Charger	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	2V ~ 5.5V	2V ~ 5.5V	25.3u00b5A ~ 81u00b5A @ 2V ~ 5V	Surface Mount	20-TSSOP
DS1305EN+ IC RTC CLK/CALENDAR SPI 20-TSSOP	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, NVSRAM, Trickle-Charger	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	2V ~ 5.5V	2V ~ 5.5V	25.3u00b5A ~ 81u00b5A @ 2V ~ 5V	Surface Mount	20-TSSOP
DS1305E+T&R IC RTC CLK/CALENDAR SPI 20-TSSOP	-	Active	Tape & Reel (TR) Cut Tape (CT) Digi-Reelu00ae	Clock/Calendar	Alarm, Leap Year, NVSRAM, Trickle-Charger	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	2V ~ 5.5V	2V ~ 5.5V	25.3u00b5A ~ 81u00b5A @ 2V ~ 5V	Surface Mount	20-TSSOP
DS1305E+ IC RTC CLK/CALENDAR SPI 20-TSSOP	-	Active	Tube	Clock/Calendar	Alarm, Leap Year, NVSRAM, Trickle-Charger	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	2V ~ 5.5V	2V ~ 5.5V	25.3u00b5A ~ 81u00b5A @ 2V ~ 5V	Surface Mount	20-TSSOP
DS1302ZN+ IC RTC CLK/CALENDAR SER 8-SOIC	-	Active	Tube	Clock/Calendar	Leap Year, NVSRAM, Trickle-Charger	31B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2V ~ 5.5V	2V ~ 5.5V	0.3u00b5A ~ 1u00b5A @ 2V ~ 5V	Surface Mount	8-SOIC
DS1302Z+ IC RTC CLK/CALENDAR SER 8-SOIC	-	Active	Tube	Clock/Calendar	Leap Year, NVSRAM, Trickle-Charger	31B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2V ~ 5.5V	2V ~ 5.5V	0.3u00b5A ~ 1u00b5A @ 2V ~ 5V	Surface Mount	8-SOIC
DS1302SN+ IC RTC CLK/CALENDAR SER 8-SOIC	-	Active	Tube	Clock/Calendar	Leap Year, NVSRAM, Trickle-Charger	31B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2V ~ 5.5V	2V ~ 5.5V	0.3u00b5A ~ 1u00b5A @ 2V ~ 5V	Surface Mount	8-SOIC
DS12887A+ IC RTC CLK/CALENDAR PAR 24-EDIP	-	Active	Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	15mA @ 4.5V ~ 5.5V	Through Hole	24-EDIP
DS12887+ IC RTC CLK/CALENDAR PAR 24-EDIP	-	Active	Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	15mA @ 4.5V ~ 5.5V	Through Hole	24-EDIP
DS1243Y-120+ IC RTC PHANTOM PAR 28-DIP	-	Active	Tube	Phantom Time Chip	Leap Year	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	7mA @ 3.3V	Through Hole	28-EDIP
DP8573AVX IC RTC CLK/CALENDAR PAR 28-PLCC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.2V ~ 5.1V	1µA @ 5V	Surface Mount	28-PLCC (11.51x11.51)
DP8573AV IC RTC CLK/CALENDAR PAR 28-PLCC	-	Obsolete	Tube Tube	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.2V ~ 5.1V	1µA @ 5V	Surface Mount	28-PLCC (11.51x11.51)
DP8570AVX IC RTC TCP PAR 28-PLCC	-	Obsolete	Tape & Reel (TR) Bulk	Timer Clock Peripheral (TCP)	Alarm, Leap Year	44B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.2V ~ 5.1V	1µA @ 5V	Surface Mount	28-PLCC (11.51x11.51)
DP8570AV IC RTC TCP PAR 28-PLCC	-	Obsolete	Tube Tube	Timer Clock Peripheral (TCP)	Alarm, Leap Year	44B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.2V ~ 5.1V	1µA @ 5V	Surface Mount	28-PLCC (11.51x11.51)
BQ4852YMC-85 IC RTC CLK/CALENDAR PAR 36-DIP	-	Obsolete	Tube Tube	Clock/Calendar	Alarm, Supervisor, Watchdog Timer	-	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	1mA @ 4.5V ~ 5.5V	Through Hole	36-DIP Module
BQ4850YMA-85N IC RTC CLK/CALENDAR PAR 32-DIP	-	Obsolete	Tube Tube	Clock/Calendar	Alarm	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	1mA @ 4.5V ~ 5.5V	Through Hole	32-DIP Module (18.42x52.96)
BQ4850YMA-85 IC RTC CLK/CALENDAR PAR 32-DIP	-	Obsolete	Tube Tube	Clock/Calendar	Alarm	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	1mA @ 4.5V ~ 5.5V	Through Hole	32-DIP Module (18.42x42.8)
BQ4845YS-A4TR IC RTC CLK/CALENDAR PAR 28-SOIC	-	Obsolete	Tape & Reel (TR) Bulk	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.3V ~ 4V	1.5mA (Typ) @ 4.5 V ~ 5.5 V	Surface Mount	28-SOIC
BQ4845YS-A4NTR IC RTC CLK/CALENDAR PAR 28-SOIC	-	Obsolete	Tape & Reel (TR) Bulk	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.3V ~ 4V	1.5mA (Typ) @ 4.5 V ~ 5.5 V	Surface Mount	28-SOIC
BQ4845YS-A4G4 IC RTC CLK/CALENDAR PAR 28-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.3V ~ 4V	1.5mA (Typ) @ 4.5 V ~ 5.5 V	Surface Mount	28-SOIC
BQ4845YP-A4E3 IC RTC CLK/CALENDAR PAR 28-DIP	-	Obsolete	Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.3V ~ 4V	1.5mA (Typ) @ 4.5 V ~ 5.5 V	Through Hole	28-PDIP
BQ4845YP-A4 IC RTC CLK/CALENDAR PAR 28-DIP	-	Obsolete	Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.3V ~ 4V	1.5mA (Typ) @ 4.5 V ~ 5.5 V	Through Hole	28-PDIP
BQ4845S-A4NTRG4 IC RTC CLK/CALENDAR PAR 28-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.75V ~ 5.5V	2.3V ~ 4V	1.5mA (Typ) @ 4.5 V ~ 5.5 V	Surface Mount	28-SOIC
BQ4845S-A4NTR IC RTC CLK/CALENDAR PAR 28-SOIC	-	Obsolete	Tape & Reel (TR) Bulk	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.75V ~ 5.5V	2.3V ~ 4V	1.5mA (Typ) @ 4.5 V ~ 5.5 V	Surface Mount	28-SOIC
BQ4845S-A4NG4 IC RTC CLK/CALENDAR PAR 28-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.75V ~ 5.5V	2.3V ~ 4V	1.5mA (Typ) @ 4.5 V ~ 5.5 V	Surface Mount	28-SOIC
BQ4845S-A4G4 IC RTC CLK/CALENDAR PAR 28-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.75V ~ 5.5V	2.3V ~ 4V	1.5mA (Typ) @ 4.5 V ~ 5.5 V	Surface Mount	28-SOIC
BQ4802YPWRG4 IC RTC CLK/CALENDAR PAR 28-TSSOP	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.4V ~ 4V	1.5mA (Typ) @ 4.5 V ~ 5.5 V	Surface Mount	28-TSSOP
BQ4802YPWR IC RTC CLK/CALENDAR PAR 28-TSSOP	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.4V ~ 4V	1.5mA (Typ) @ 4.5 V ~ 5.5 V	Surface Mount	28-TSSOP
BQ4802YDWRG4 IC RTC CLK/CALENDAR PAR 28-SOIC	-	Discontinued at Digi-Key	Tape & Reel (TR)	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.4V ~ 4V	1.5mA (Typ) @ 4.5 V ~ 5.5 V	Surface Mount	28-SOIC
BQ4802YDSH IC RTC CLK/CALENDAR PAR 28-SOP	-	Obsolete	Tube Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.4V ~ 4V	1.5mA (Typ) @ 4.5 V ~ 5.5 V	Surface Mount	28-SOP
BQ4802LYPWG4 IC RTC CLK/CALENDAR PAR 28-TSSOP	-	Discontinued at Digi-Key	Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 3.6V	2.4V ~ 4V	1.5mA (Typ) @ 2.7 V ~ 3.6 V	Surface Mount	28-TSSOP
BQ4802LYDWRG4 IC RTC CLK/CALENDAR PAR 28-SOIC	-	Discontinued at Digi-Key	Tape & Reel (TR)	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 3.6V	2.4V ~ 4V	1.5mA (Typ) @ 2.7 V ~ 3.6 V	Surface Mount	28-SOIC
BQ4802LYDWG4 IC RTC CLK/CALENDAR PAR 28-SOIC	-	Active	Bulk	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 3.6V	2.4V ~ 4V	1.5mA (Typ) @ 2.7 V ~ 3.6 V	Surface Mount	28-SOIC
BQ4802LYDSH IC RTC CLK/CALENDAR PAR 28-SOP	-	Obsolete	Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 3.6V	2.4V ~ 4V	1.5mA (Typ) @ 2.7 V ~ 3.6 V	Surface Mount	28-SOP
BQ4285S-SB2TR IC RTC CLK/CALENDAR PAR 24-SOIC	-	Obsolete	Tape & Reel (TR) Bulk	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	-	Surface Mount	24-SOIC
BQ4285S-SB2G4 IC RTC CLK/CALENDAR PAR 24-SOIC	-	Obsolete	Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	-	Surface Mount	24-SOIC
BQ3285S-SB2TRG4 IC RTC CLK/CALENDAR PAR 24-SOIC	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	-	Surface Mount	24-SOIC
BQ3285S-SB2TR IC RTC CLK/CALENDAR PAR 24-SOIC	-	Obsolete	Tape & Reel (TR) Bulk	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	-	Surface Mount	24-SOIC
BQ3285P-SB2E3 IC RTC CLK/CALENDAR PAR 24-DIP	-	Obsolete	Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	-	Through Hole	24-PDIP
BQ3285LFSS-A1TRG4 IC RTC CLK/CALENDAR PAR 24-QSOP	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 5.5V	2.4V ~ 4V	100u00b5A @ 3V	Surface Mount	24-SSOP
BQ3285LFSS-A1TR IC RTC CLK/CALENDAR PAR 24-QSOP	-	Obsolete	Tape & Reel (TR) Bulk	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 5.5V	2.4V ~ 4V	100u00b5A @ 3V	Surface Mount	24-SSOP
BQ3285LFSS-A1G4 IC RTC CLK/CALENDAR PAR 24-QSOP	-	Obsolete	Tube	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 5.5V	2.4V ~ 4V	100u00b5A @ 3V	Surface Mount	24-SSOP
BQ3285LDSSTRG4 IC RTC CLK/CALENDAR PAR 24-QSOP	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Daylight Savings, NVSRAM	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 5.5V	2.4V ~ 4V	100u00b5A @ 3V	Surface Mount	24-SSOP
BQ3285LDSSTR IC RTC CLK/CALENDAR PAR 24-QSOP	-	Obsolete	Tape & Reel (TR) Bulk	Clock/Calendar	Alarm, Daylight Savings, NVSRAM	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 5.5V	2.4V ~ 4V	100u00b5A @ 3V	Surface Mount	24-SSOP
BQ3285LDSSG4 IC RTC CLK/CALENDAR PAR 24-QSOP	-	Obsolete	Tube	Clock/Calendar	Alarm, Daylight Savings, NVSRAM	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 5.5V	2.4V ~ 4V	100u00b5A @ 3V	Surface Mount	24-SSOP
BQ3285ESTR IC RTC CLK/CALENDAR PAR 24-SOIC	-	Obsolete	Tape & Reel (TR) Bulk	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	300u00b5A @ 5V	Surface Mount	24-SOIC
BQ3285ESSTRG4 IC RTC CLK/CALENDAR PAR 24-QSOP	-	Obsolete	Tape & Reel (TR)	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	300u00b5A @ 5V	Surface Mount	24-SSOP
BQ3285ESSTR IC RTC CLK/CALENDAR PAR 24-QSOP	-	Obsolete	Tape & Reel (TR) Bulk	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	300u00b5A @ 5V	Surface Mount	24-SSOP

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