Clock/Timing - Real Time Clocks

Category Introduction

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.

Product List

200 Items

PDF	Mfr Part #	Quantity Available	UnitPrice	RFQ	Series	Packaging	Product Status	Type	Features	Memory Size	Time Format	Date Format	Interface	Voltage - Supply	Voltage - Supply, Battery	Current - Timekeeping (Max)	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
	M48T212V-85MH1F IC RTC CLK/CALENDAR PAR 44-SOH STMicroelectronics	477	$0.00		Timekeeper®	Tape & Reel (TR)	Obsolete	Clock/Calendar	Alarm, Leap Year, Watchdog Timer, Y2K	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	3V ~ 3.6V	3V	2mA @ 3V ~ 3.6V	0°C ~ 70°C	Surface Mount	44-BSOP (0.337", 8.56mm Width) requires SNAPHAT	44-SOH
	M48T59Y-70MH1F IC RTC CLK/CALENDAR PAR 28SOH STMicroelectronics	564	$0.00		Timekeeper®	Tape & Reel (TR)	Obsolete	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	3mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	28-SOH
	M48T86MH1F IC RTC CLK/CALENDAR PAR 28-SOIC STMicroelectronics	152	$0.00			Tape & Reel (TR)	Obsolete	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	15mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	28-SOH
	M41T56MH6F IC RTC CLK/CALENDAR I2C 28-SOIC STMicroelectronics	121	$0.00			Tape & Reel (TR)	Obsolete	Clock/Calendar	Leap Year, NVSRAM	56B	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	4.5V ~ 5.5V	2.5V ~ 3.5V	100µA (Typ) @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	28-SOH
	M41ST87WMX6 IC RTC CLK/CALENDAR I2C 28-SOIC STMicroelectronics	429	$0.00			Tube	Obsolete	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer	128B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.7V ~ 3.6V	2.5V ~ 3.6V	0.5mA @ 2.7V ~ 3.6V	-40°C ~ 85°C	Surface Mount	28-SOIC (0.295", 7.50mm Width)	28-SO
	M41T00SM6E IC RTC CLK/CALENDAR I2C 8-SOIC STMicroelectronics	234	$0.00			Tube	Obsolete	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.7V ~ 5.5V	2V ~ 3.5V	70µA @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
	M41T0DS6F IC RTC CLK/CALENDAR I2C 8-TSSOP STMicroelectronics	460	$0.00			Tape & Reel (TR)	Obsolete	Clock/Calendar	-	-	HH:MM:SS	YY-MM-DD-dd	I²C, 2-Wire Serial	2V ~ 5.5V	-	1.2µA ~ 31µA @ 3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	-
	M41T81SM6E IC RTC CLK/CALENDAR I2C 8-SOIC STMicroelectronics	537	$0.00			Tube	Obsolete	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.7V ~ 5.5V	2V ~ 3.5V	100µA @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
	M41T56C64MY6F IC RTC CLK/CALENDAR I2C 18-SOIC STMicroelectronics	302	$0.00			Tape & Reel (TR)	Obsolete	Clock/Calendar	EEPROM, Leap Year, NVSRAM	56B, 8KB	HH:MM:SS	YY-MM-DD-dd	I²C, 2-Wire Serial	4.5V ~ 5.5V	2.5V ~ 3.5V	100µA (Typ) @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	18-SOX, 18-SOIC with Crystal (7.5mm Width)	18-SOX
	M41T82RM6E IC RTC CLK/CALENDAR I2C 8-SOIC STMicroelectronics	495	$0.00			Tube	Obsolete	Clock/Calendar	Alarm, Leap Year, 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	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
	M41T00SC64MY6F IC RTC CLK/CALENDAR I2C 18-SOIC STMicroelectronics	135	$0.00			Tape & Reel (TR)	Obsolete	Clock/Calendar	EEPROM, Leap Year	8KB	HH:MM:SS	YY-MM-DD-dd	I²C, 2-Wire Serial	2.7V ~ 5.5V	2.5V ~ 35V	100µA (Typ) @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	18-SOX, 18-SOIC with Crystal (7.5mm Width)	18-SOX
	M41ST85WMH6TR IC RTC CLK/CALENDAR I2C 28-SOH STMicroelectronics	323	$0.00			Tape & Reel (TR)	Obsolete	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer	44B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.7V ~ 3.6V	2.5V ~ 3.5V	0.5mA @ 2.7V ~ 3.6V	-40°C ~ 85°C	Surface Mount	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	28-SOH
	M41T56C64MY6E IC RTC CLK/CALENDAR I2C 18-SOIC STMicroelectronics	54	$0.00			Tube	Obsolete	Clock/Calendar	EEPROM, Leap Year, NVSRAM	56B, 8KB	HH:MM:SS	YY-MM-DD-dd	I²C, 2-Wire Serial	4.5V ~ 5.5V	2.5V ~ 3.5V	100µA (Typ) @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	18-SOX, 18-SOIC with Crystal (7.5mm Width)	18-SOX
	BQ4802LYDWRG4 IC RTC CLK/CALENDAR PAR 28-SOIC Texas Instruments	128	$0.00			Tape & Reel (TR)	Discontinued at Digi-Key	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	0°C ~ 70°C	Surface Mount	28-SOIC (0.295", 7.50mm Width)	28-SOIC
	M41T00SC64MY6E IC RTC CLK/CALENDAR I2C 18-SOX STMicroelectronics	563	$0.00			Tube	Obsolete	Clock/Calendar	EEPROM, Leap Year	8KB	HH:MM:SS	YY-MM-DD-dd	I²C, 2-Wire Serial	2.7V ~ 5.5V	2.5V ~ 35V	100µA (Typ) @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	18-SOX, 18-SOIC with Crystal (7.5mm Width)	18-SOX
	M41T83RMY6E IC RTC CLK/CALENDAR I2C 18-SOX STMicroelectronics	364	$0.00			Tube	Obsolete	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	-40°C ~ 85°C	Surface Mount	18-SOX, 18-SOIC with Crystal (7.5mm Width)	18-SOX
	DS1302Z+T&R/C07 IC RTC CLK/CALENDAR SER 8-SOIC Analog Devices Inc./Maxim Integrated	285	$0.00			Tape & Reel (TR)	Obsolete	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	0.3µA ~ 1µA @ 2V ~ 5V	0°C ~ 70°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
	DS1307Z+T&R/C01 IC RTC CLK/CALENDAR I2C 8-SOIC Analog Devices Inc./Maxim Integrated	443	$0.00			Tape & Reel (TR)	Obsolete	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	4.5V ~ 5.5V	2V ~ 3.5V	200µA @ 5V	0°C ~ 70°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
	DS1307ZN+T&R/C02 IC RTC CLK/CALENDAR I2C 8-SOIC Analog Devices Inc./Maxim Integrated	373	$0.00			Tape & Reel (TR)	Obsolete	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	4.5V ~ 5.5V	2V ~ 3.5V	200µA @ 5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
	M41T00CAPPC1 IC RTC CLK/CALENDAR I2C 24-DIP STMicroelectronics	394	$0.00		Timekeeper®, CAPHAT™	Tube	Obsolete	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.7V ~ 5.5V	Integrated	70µA @ 2.7V ~ 5.5V	0°C ~ 70°C	Through Hole	24-DIP (0.600", 15.24mm)	24-PCDIP, CAPHAT®