Real Time Clocks

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	DigiKey Programmable	Type	Features	Memory Size	Time Format	Date Format	Interface	Voltage - Supply	Voltage - Supply, Battery	Current - Timekeeping (Max)	Operating Temperature	Mounting Type	Grade	Qualification	Package / Case	Supplier Device Package

PCF85063AT/AY IC RTC CLOCK/CALENDAR I2C 8SO NXP USA Inc.	79,004 In Stock	1 : ¥8.29000 Cut Tape (CT) 2,500 : ¥3.51626 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	0.9V ~ 5.5V	-	0.6µA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC (0.154", 3.90mm Width)	8-SO
PCF85263AT/AJ IC RTC CLOCK/CALENDAR I2C 8SO NXP USA Inc.	135,029 In Stock	1 : ¥11.39000 Cut Tape (CT) 2,500 : ¥4.84195 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	0.9V ~ 5.5V	0.9V ~ 5.5V	0.885µA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC (0.154", 3.90mm Width)	8-SO
RV-3028-C7 32.768KHZ 1PPM-TA-QC IC RTC CLK/CALENDAR I2C 8SON Micro Crystal AG	45,469 In Stock	1 : ¥23.89000 Cut Tape (CT) 1,000 : ¥13.07853 Tape & Reel (TR)	C7	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	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-WCDFN	8-SON (3.2x1.5)
RV-3028-C7 32.768KHZ 1PPM-TA-QA IC RTC CLK/CALENDAR I2C 8SON Micro Crystal AG	57,994 In Stock	1 : ¥25.12000 Cut Tape (CT) 1,000 : ¥13.73967 Tape & Reel (TR)	C7	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	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-WCDFN	8-SON (3.2x1.5)
BQ32002DR IC RTC CLK/CALENDAR I2C 8SOIC Texas Instruments	8,763 In Stock	1 : ¥11.22000 Cut Tape (CT) 2,500 : ¥4.76020 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Leap Year, Square Wave Output	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	3V ~ 3.6V	1.4V ~ 3.6V	65µA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC (0.154", 3.90mm Width)	8-SOIC
DS1388Z-3 IC BATT CHG I2C RTC W/TRICKLE Analog Devices Inc./Maxim Integrated	1,449 Marketplace	Unavailable Unavailable in your selected currency	-	Bulk	Active	-	Clock/Calendar	Alarm, EEPROM, Leap Year, Supervisor, Trickle-Charger, Watchdog Timer	512B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	I2C	2.7V ~ 3.3V	1.3V ~ 5.5V	140µA @ 2.7V ~ 3.3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	8-SOIC (0.154", 3.90mm Width)	8-SOIC

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Real Time Clocks (RTCs) provide time and/or date information in almost any electronic device which needs to keep accurate time. The clock types are binary counter, clock/calendar/supervisor, elapsed time counter, phantom time chip, portable system controller, temperature recorder, time event recorder, and timer clock peripheral. They contain memory sizes ranging from 2 B to 2 MB and have interface options of I2C, Parallel, Serial, SPI, 1-Wire, 2-Wire, 3-Wire, and 4-Wire.