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

RV-3129-C3-32.768KHZ-OPTION-B-TB-QA IC RTC CLK/CALENDAR I2C 10SON Micro Crystal AG	20,023 In Stock	1 : ¥24.88000 Cut Tape (CT) 1,000 : ¥17.11932 Tape & Reel (TR)	C3	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	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-VCDFN	10-SON (3.7x2.5)
RV-8564-C3-32.768KHZ-20PPM-TA-QC IC RTC CLK/CALENDAR I2C 10SON Micro Crystal AG	9,221 In Stock	1 : ¥30.13000 Cut Tape (CT) 1,000 : ¥16.50443 Tape & Reel (TR)	C3	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Programmable Clock Output, Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1V ~ 5.5V	-	0.35µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	10-VCDFN	10-SON (3.7x2.5)
RV-3149-C3-32.768KHZ-OPTION-B-TA-QC IC RTC CLK/CALENDAR SPI 10SON Micro Crystal AG	6,465 In Stock	1 : ¥30.79000 Cut Tape (CT) 1,000 : ¥16.84100 Tape & Reel (TR)	C3	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	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-VCDFN	10-SON (3.7x2.5)
RV-3129-C3-32.768KHZ-OPTION-B-TA-QC IC RTC CLK/CALENDAR I2C 10SON Micro Crystal AG	4,047 In Stock	1 : ¥31.88000 Cut Tape (CT) 1,000 : ¥16.84100 Tape & Reel (TR)	C3	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	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-VCDFN	10-SON (3.7x2.5)
RV-8523-C3-32.768KHZ-20PPM-TA-QC IC RTC CLK/CALENDAR I2C 10SON Micro Crystal AG	12,701 In Stock	1 : ¥33.75000 Cut Tape (CT) 1,000 : ¥17.81472 Tape & Reel (TR)	C3	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	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-VCDFN	10-SON (3.7x2.5)
RV-3149-C3-32.768KHZ-OPTION-B-TB-QA IC RTC CLK/CALENDAR SPI 10SON Micro Crystal AG	21,946 In Stock	1 : ¥35.38000 Cut Tape (CT) 1,000 : ¥18.70152 Tape & Reel (TR)	C3	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	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 ~ 125°C (TA)	Surface Mount	Automotive	AEC-Q200	10-VCDFN	10-SON (3.7x2.5)
RV-3149-C3-32.768KHZ-OPTION-A-TB-QA IC RTC CLK/CALENDAR SPI 10SON Micro Crystal AG	6,687 In Stock	1 : ¥43.95000 Cut Tape (CT) 1,000 : ¥23.23604 Tape & Reel (TR)	C3	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	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 ~ 125°C (TA)	Surface Mount	Automotive	AEC-Q200	10-VCDFN	10-SON (3.7x2.5)
RV-3129-C3-32.768KHZ-OPTION-A-TB-QA IC RTC CLK/CALENDAR I2C 10SON Micro Crystal AG	6,634 In Stock	1 : ¥43.95000 Cut Tape (CT) 1,000 : ¥23.23604 Tape & Reel (TR)	C3	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	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-VCDFN	10-SON (3.7x2.5)
RV-8564-C3-32.768KHZ-10PPM-TA-QC IC RTC CLK/CALENDAR I2C 10SON Micro Crystal AG	0 In Stock Check Lead Time	1,000 : ¥17.52908 Tape & Reel (TR)	C3	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Programmable Clock Output, Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1V ~ 5.5V	-	0.35µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	10-VCDFN	10-SON (3.7x2.5)
RV-8523-C3-32.768KHZ-10PPM-TA-QC IC RTC CLK/CALENDAR I2C 10SON Micro Crystal AG	0 In Stock Check Lead Time	1,000 : ¥18.92212 Tape & Reel (TR)	C3	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-VCDFN	10-SON (3.7x2.5)
RV-3129-C3-32.768KHZ-OPTION-A-TA-QC-T3 TIMING REAL TIME CLOCK Micro Crystal AG	0 In Stock Check Lead Time	1,000 : ¥20.20680 Bulk	C3	Bulk	Active	-	Clock/Calendar	Alarm, EEPROM, RAM, Trickle Charger	8B	HH:MM:SS	YY-MM-DD-dd	I2C, 2-Wire Serial	1.3V ~ 5.5V, 2.1V ~ 5.5V	-	1µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	10-VCDFN	10-SON (3.7x2.5)
RV-3129-C3-32.768KHZ-OPTION-A-TA-QC IC RTC CLK/CALENDAR I2C 10SON Micro Crystal AG	0 In Stock Check Lead Time	1 : ¥36.94000 Cut Tape (CT) 1,000 : ¥19.51413 Tape & Reel (TR)	C3	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	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-VCDFN	10-SON (3.7x2.5)
RV-3149-C3-32.768KHZ-OPTION-A-TA-QC IC RTC CLK/CALENDAR SPI 10SON Micro Crystal AG	0 In Stock Check Lead Time	1 : ¥36.94000 Cut Tape (CT) 1,000 : ¥19.51413 Tape & Reel (TR)	C3	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	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-VCDFN	10-SON (3.7x2.5)
RV-3129-C3-32.768KHZ-OPTION-B-TA-QA IC RTC CLK/CALENDAR I2C 10SON Micro Crystal AG	0 In Stock	Active	C3	Bulk	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, RAM, Trickle Charger	2B, 8B	HH:MM:SS	YY-MM-DD-dd	I2C, 2-Wire Serial	1.3V ~ 5.5V, 2.1V ~ 5.5V	-	1µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	10-VCDFN	10-SON (3.7x2.5)
RV-3129-C3-32.768KHZ-OPTION-B-TB-QC IC RTC CLK/CALENDAR I2C 10SON Micro Crystal AG	0 In Stock	Active	C3	Bulk	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, RAM, Trickle Charger	2B, 8B	HH:MM:SS	YY-MM-DD-dd	I2C, 2-Wire Serial	1.3V ~ 5.5V, 2.1V ~ 5.5V	-	1µA @ 3V	-40°C ~ 125°C	Surface Mount	-	-	10-VCDFN	10-SON (3.7x2.5)
RV-3149-C3-32.768KHZ-OPTION-B-TA-QA IC RTC CLK/CALENDAR SPI 10SON Micro Crystal AG	0 In Stock	Active	C3	Bulk	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, RAM, Trickle Charger	2B, 8B	HH:MM:SS	YY-MM-DD-dd	SPI, 4-Wire Serial	1.3V ~ 5.5V, 2.1V ~ 5.5V	-	1µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	10-VCDFN	10-SON (3.7x2.5)
RV-3149-C3-32.768KHZ-OPTION-A-TB-QC IC RTC CLK/CALENDAR SPI 10SON Micro Crystal AG	0 In Stock	Active	C3	Bulk	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, RAM, Trickle Charger	2B, 8B	HH:MM:SS	YY-MM-DD-dd	SPI, 4-Wire Serial	1.3V ~ 5.5V, 2.1V ~ 5.5V	-	1µA @ 3V	-40°C ~ 125°C	Surface Mount	-	-	10-VCDFN	10-SON (3.7x2.5)
RV-3129-C3-32.768KHZ-OPTION-A-TB-QC IC RTC CLK/CALENDAR I2C 10SON Micro Crystal AG	0 In Stock	Active	C3	Bulk	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, RAM, Trickle Charger	2B, 8B	HH:MM:SS	YY-MM-DD-dd	I2C, 2-Wire Serial	1.3V ~ 5.5V, 2.1V ~ 5.5V	-	1µA @ 3V	-40°C ~ 125°C	Surface Mount	-	-	10-VCDFN	10-SON (3.7x2.5)
RV-3149-C3-32.768KHZ-OPTION-B-TB-QC IC RTC CLK/CALENDAR SPI 10SON Micro Crystal AG	0 In Stock	Active	C3	Bulk	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, RAM, Trickle Charger	2B, 8B	HH:MM:SS	YY-MM-DD-dd	SPI, 4-Wire Serial	1.3V ~ 5.5V, 2.1V ~ 5.5V	-	1µA @ 3V	-40°C ~ 125°C	Surface Mount	-	-	10-VCDFN	10-SON (3.7x2.5)

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Real Time Clocks

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.

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Real Time Clocks

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