Real Time Clocks

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of 2,346

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
MCP7940MT-I/SN IC RTC CLK/CALENDAR I2C 8SOIC Microchip Technology	2,686 In Stock	1 : £0.50000 Cut Tape (CT) 3,300 : £0.44126 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	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	-	1µA @ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC (0.154", 3.90mm Width)	8-SOIC
PCF85063ATL/1,118 IC RTC CLK/CALENDAR I2C 10DFN NXP USA Inc.	56,141 In Stock	1 : £0.56000 Cut Tape (CT) 4,000 : £0.25440 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	-	-	10-XFDFN Exposed Pad	10-DFN (2.6x2.6)
MCP7940MT-I/MNY IC RTC CLK/CALENDAR I2C 8TDFN Microchip Technology	10,893 In Stock	1 : £0.62000 Cut Tape (CT) 3,300 : £0.50483 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	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	-	1µA @ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-WFDFN Exposed Pad	8-TDFN (2x3)
MCP7940N-I/SN IC RTC CLK/CALENDAR I2C 8SOIC Microchip Technology	16,710 In Stock	1 : £0.64000 Tube	-	Tube	Active	Not Verified	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	-40°C ~ 85°C	Surface Mount	Automotive	AEC-Q100	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MCP7940N-I/MS IC RTC CLK/CALENDAR I2C 8MSOP Microchip Technology	2,486 In Stock	1 : £0.67000 Tube	-	Tube	Active	Not Verified	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	-40°C ~ 85°C	Surface Mount	Automotive	AEC-Q100	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-MSOP
MCP7940NT-I/SN IC RTC CLK/CALENDAR I2C 8SOIC Microchip Technology	8,190 In Stock	1 : £0.69000 Cut Tape (CT) 3,300 : £0.56841 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	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	-40°C ~ 85°C	Surface Mount	Automotive	AEC-Q100	8-SOIC (0.154", 3.90mm Width)	8-SOIC
PCF85063TP/1Z IC RTC CLK/CALENDAR I2C 8HWSON NXP USA Inc.	7,229 In Stock	1 : £0.69000 Cut Tape (CT) 4,000 : £0.31713 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-WFDFN Exposed Pad	8-HWSON (2x3)
MCP7940NT-I/MNY IC RTC CLK/CALENDAR I2C 8TDFN Microchip Technology	13,763 In Stock	1 : £0.71000 Cut Tape (CT) 3,300 : £0.62076 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	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	-40°C ~ 85°C	Surface Mount	Automotive	AEC-Q100	8-WFDFN Exposed Pad	8-TDFN (2x3)
PCF85063AT/AY IC RTC CLOCK/CALENDAR I2C 8SO NXP USA Inc.	27,179 In Stock	1 : £0.72000 Cut Tape (CT) 2,500 : £0.33770 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
MCP7940NT-I/MS IC RTC CLK/CALENDAR I2C 8MSOP Microchip Technology	19,317 In Stock	1 : £0.73000 Cut Tape (CT) 2,500 : £0.59832 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	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	-40°C ~ 85°C	Surface Mount	Automotive	AEC-Q100	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-MSOP
MCP79410T-I/SN IC RTC CLK/CALENDAR I2C 8SOIC Microchip Technology	24,520 In Stock	1 : £0.78000 Cut Tape (CT) 3,300 : £0.68059 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	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	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MCP79410-I/SN IC RTC CLK/CALENDAR I2C 8SOIC Microchip Technology	6,509 In Stock	1 : £0.78000 Tube	-	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	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	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MCP79410T-I/MS IC RTC CLK/CALENDAR I2C 8MSOP Microchip Technology	8,084 In Stock	1 : £0.81000 Cut Tape (CT) 2,500 : £0.71985 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	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	-40°C ~ 85°C	Surface Mount	-	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-MSOP
MCP79410-I/MS IC RTC CLK/CALENDAR I2C 8MSOP Microchip Technology	2,443 In Stock	1 : £0.81000 Tube	-	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	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	-40°C ~ 85°C	Surface Mount	-	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-MSOP
PCF8563T/5,518 IC RTC CLOCK/CALENDAR I2C 8SO NXP USA Inc.	6,952 In Stock	1 : £0.82000 Cut Tape (CT) 2,500 : £0.39078 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1V ~ 5.5V	-	0.6µA ~ 0.75µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC (0.154", 3.90mm Width)	8-SO
PCF85263ATL/AX IC RTC CLK/CALENDAR I2C 10DFN NXP USA Inc.	55,828 In Stock	1 : £0.88000 Cut Tape (CT) 4,000 : £0.41606 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	-	-	10-XFDFN Exposed Pad	10-DFN (2.6x2.6)
MCP79411-I/MS IC RTC CLK/CALENDAR I2C 8MSOP Microchip Technology	6,291 In Stock	1 : £0.88000 Tube	-	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	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	-40°C ~ 85°C	Surface Mount	-	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-MSOP
MCP79410T-I/MNY IC RTC CLK/CALENDAR I2C 8TDFN Microchip Technology	10,891 In Stock	1 : £0.91000 Cut Tape (CT) 3,300 : £0.74790 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	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	-40°C ~ 85°C	Surface Mount	-	-	8-WFDFN Exposed Pad	8-TDFN (2x3)
MCP79412T-I/SN IC RTC CLK/CALENDAR I2C 8SOIC Microchip Technology	3,158 In Stock	1 : £0.91000 Cut Tape (CT) 3,300 : £0.74790 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	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	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC (0.154", 3.90mm Width)	8-SOIC
PCF85263ATT/AJ IC RTC CLK/CALENDAR I2C 8TSSOP NXP USA Inc.	1,958 In Stock	1 : £0.92000 Cut Tape (CT) 2,500 : £0.44554 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-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-TSSOP
PCF85263AT/AJ IC RTC CLOCK/CALENDAR I2C 8SO NXP USA Inc.	1,562 In Stock	1 : £0.92000 Cut Tape (CT) 2,500 : £0.44554 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
MCP79510T-I/MS IC RTC CLK/CALENDAR SPI 10MSOP Microchip Technology	5,136 In Stock	1 : £0.96000 Cut Tape (CT) 2,500 : £0.84513 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	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	1µA @ 1.8V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-MSOP
MCP79510-I/MS IC RTC CLK/CALENDAR SPI 10MSOP Microchip Technology	2,890 In Stock	1 : £0.96000 Tube	-	Tube	Active	Not Verified	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	1µA @ 1.8V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-MSOP
PCF85363ATT/AJ IC RTC CLK/CALENDAR I2C 8TSSOP NXP USA Inc.	56,309 In Stock	1 : £1.03000 Cut Tape (CT) 2,500 : £0.49690 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	64B	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-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-TSSOP
RX8130CE B0 IC RTC TIME EVENT REC I2C 10SMD EPSON	4,249 In Stock	1 : £1.04000 Cut Tape (CT) 1,000 : £0.52649 Tape & Reel (TR)	RX8130CE	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Time Event Recorder	Alarm	-	HH:MM:SS	YY-MM-DD	I2C	1.25V ~ 5.5V	1.1V ~ 5.5V	0.5µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	10-SMD, No Lead	10-SMD (3.2x2.5)

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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.

Real Time Clocks

Real Time Clocks

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