Real Time Clocks

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Series	Package/Case	Packaging	Product Status	Programmable	Type	Features	Memory Size	Time Format	Date Format	Interface	Voltage - Supply	Voltage - Supply, Battery	Current - Timekeeping (Max)	Operating Temperature	Mounting Type	Grade	Qualification	Supplier Device Package
RV-3129-C3-32.768KHZ-OPTION-B-TB-QA IC RTC CLK/CALENDAR I2C 10SON Micro Crystal AG	0	1+：$4.19000 10+：$3.16800 25+：$2.91240 100+：$2.63110 250+：$2.49704 500+：$2.43728	RFQ	Datasheet	C3	10-VCDFN	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Programmable Clock Output, RAM, Temperature, Timer, Trickle Charger	2B, 8B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.3V ~ 5.5V	-	1µA @ 3V	-40°C ~ 125°C (TA)	Surface Mount	Automotive	AEC-Q200	10-SON (3.7x2.5)
ISL12057IUZ-T IC RTC CLK/CALENDAR I2C 8MSOP Renesas Electronics Corporation	1,571	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 3.6V	-	0.65µA @ 1.8V	-40°C ~ 85°C	Surface Mount	-	-	8-MSOP
ISL12057IUZ IC RTC CLK/CALENDAR I2C 8MSOP Renesas Electronics Corporation	1,201	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 3.6V	-	0.65µA @ 1.8V	-40°C ~ 85°C	Surface Mount	-	-	8-MSOP
ISL1208IB8Z-TK IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	10,275	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, SRAM	2B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7V ~ 5.5V	1.8V ~ 5.5V	4µA ~ 6µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
RV-3028-C7 32.768KHZ 1PPM-TA-QC IC RTC CLK/CALENDAR I2C 8SON Micro Crystal AG	0	1+：$2.41000 10+：$1.78900 25+：$1.63280 100+：$1.46100 250+：$1.37916 500+：$1.32980	RFQ	Datasheet	C7	8-WCDFN	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Battery Switch, EEPROM, External Event Interrupt, Leap Year, Programmable Clock Output, RAM, Timer, Trickle Charger	2B, 43B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.1V ~ 5.5V	1.1V ~ 5.5V	0.06µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	8-SON (3.2x1.5)
R2025S-E2-FE IC RTC CLK/CALENDAR I2C 14SOP Nisshinbo Micro Devices Inc.	6,632	-	RFQ	Datasheet	-	14-SOIC (0.197", 5.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.7V ~ 5.5V	-	120µA ~ 1.8µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	14-SOP
PCA2131TF/Q900Y IC RTC W/XTAL AUTO HLSON16 NXP USA Inc.	1,246	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Active	Not Verified	-	-	-	-	-	-	-	-	-	-	-	-	-	-
RV-3028-C7 32.768KHZ 1PPM-TA-QA IC RTC CLK/CALENDAR I2C 8SON Micro Crystal AG	0	1+：$2.52000 10+：$1.87100 25+：$1.70920 100+：$1.53050 250+：$1.44532 500+：$1.39402	RFQ	Datasheet	C7	8-WCDFN	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Battery Switch, EEPROM, External Event Interrupt, Leap Year, Programmable Clock Output, RAM, Timer, Trickle Charger	2B, 43B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.1V ~ 5.5V	1.1V ~ 5.5V	0.06µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	Automotive	AEC-Q200	8-SON (3.2x1.5)
RV-2123-C2-32.768KHZ-20PPM-TA-QC IC RTC CLK/CALENDAR SPI 10SON Micro Crystal AG	0	-	RFQ	Datasheet	C2	10-TDFN Exposed Pad	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Programmable Clock Output, Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI, 4-Wire Serial	1.1V ~ 5.5V	-	0.18µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	10-SON (5x3.2)
M41T94MQ6F IC RTC CLK/CALENDAR SPI 16SO STMicroelectronics	5,978	-	RFQ	Datasheet	-	16-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer	44B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	SPI	2.7V ~ 5.5V	2.5V ~ 3.5V	1.4mA @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	16-SO
RV-8803-C7-32.768KHZ-3PPM-TA-QC IC RTC CLK/CALENDAR I2C 8SON Micro Crystal AG	39	1+：$2.76000 10+：$2.05800 25+：$1.88200 100+：$1.68820 250+：$1.59576 500+：$1.54002	RFQ	Datasheet	C7	8-WCDFN	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, External Event Interrupt, Leap Year, Programmable Clock Output, RAM, Timer	1B	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.5V ~ 5.5V	-	0.35µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	8-SON (3.2x1.5)
ISL1208IU8Z-TK IC RTC CLK/CALENDAR I2C 8MSOP Renesas Electronics Corporation	4,628	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, SRAM	2B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7V ~ 5.5V	1.8V ~ 5.5V	4µA ~ 6µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-MSOP
RV-8803-C7-32.768KHZ-3PPM-TA-QA IC RTC CLK/CALENDAR I2C 8SON Micro Crystal AG	0	1+：$3.09000 10+：$2.31000 25+：$2.11560 100+：$1.90120 250+：$1.79912 500+：$1.73754	RFQ	Datasheet	C7	8-WCDFN	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, External Event Interrupt, Leap Year, Programmable Clock Output, RAM, Timer	1B	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.5V ~ 5.5V	-	0.35µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	Automotive	AEC-Q200	8-SON (3.2x1.5)
M41T93RMY6F IC RTC CLK/CALENDAR SPI 18SOX STMicroelectronics	8,712	-	RFQ	Datasheet	-	18-SOX, 18-SOIC with Crystal (7.5mm Width)	Tape & Reel (TR)	Active	Not Verified	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	-40°C ~ 85°C	Surface Mount	-	-	18-SOX
M41T83ZMY6F IC RTC CLK/CALENDAR I2C 18SOX STMicroelectronics	1,381	1+：$7.54000 10+：$5.81800 25+：$5.38760 100+：$4.91400 250+：$4.68820 500+：$4.68164	RFQ	Datasheet	-	18-SOX, 18-SOIC with Crystal (7.5mm Width)	Tape & Reel (TR)	Active	Not Verified	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	-40°C ~ 85°C	Surface Mount	-	-	18-SOX
PCF2127T/2Y IC RTC CLOCK/CALENDAR I2C 16SO NXP USA Inc.	1,052	-	RFQ	Datasheet	-	16-SOIC (0.295", 7.50mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer	512B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 4.2V	1.8V ~ 4.2V	1.5µA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	16-SO
RV-3129-C3-32.768KHZ-OPTION-B-TA-QC IC RTC CLK/CALENDAR I2C 10SON Micro Crystal AG	29,513	1+：$3.23000 10+：$2.42300 25+：$2.22000 100+：$1.99670 250+：$1.89032 500+：$1.82618	RFQ	Datasheet	C3	10-VCDFN	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Programmable Clock Output, RAM, Temperature, Timer, Trickle Charger	2B, 8B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.3V ~ 5.5V	-	1µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	10-SON (3.7x2.5)
PCF2127AT/2Y IC RTC CLOCK/CALENDAR I2C 20SO NXP USA Inc.	5,658	-	RFQ	Datasheet	-	20-SOIC (0.295", 7.50mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer	512B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 4.2V	1.8V ~ 4.2V	1.5µA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	20-SO
RV-3149-C3-32.768KHZ-OPTION-B-TA-QC IC RTC CLK/CALENDAR SPI 10SON Micro Crystal AG	7,363	1+：$3.70000 10+：$2.78200 25+：$2.55360 100+：$2.30230 250+：$2.18236 500+：$2.11904	RFQ	Datasheet	C3	10-VCDFN	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Programmable Clock Output, RAM, Temperature, Timer, Trickle Charger	2B, 8B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI, 4-Wire Serial	1.3V ~ 5.5V	-	1µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	10-SON (3.7x2.5)
RV-8523-C3-32.768KHZ-20PPM-TA-QC IC RTC CLK/CALENDAR I2C 10SON Micro Crystal AG	0	-	RFQ	Datasheet	C3	10-VCDFN	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Battery Switch, Leap Year, Programmable Clock Output, Timer, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.2V ~ 5.5V	-	0.18µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	10-SON (3.7x2.5)

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