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
	PCF2131TFY IC RTC W/XTAL HLSON16 NXP USA Inc.	16	$3.85			Tape & Reel (TR)	Active	Clock/Calendar	Alarm, Leap Year, SRAM, Watchdog Timer	8B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	I²C, SPI	1.2V ~ 5.5V	1.2V ~ 5.5V	770nA ~ 2.135µA @ 1.2V ~ 5.5V	-40°C ~ 85°C (TA)	Surface Mount, Wettable Flank	16-LFDFN Exposed Pad	16-HLSON (4.5x3.5)
	M41T93SQA6F IC RTC CLK/CALENDAR SPI 16-QFN STMicroelectronics	179	$4.95			Tape & Reel (TR)	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	7B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	SPI	3V ~ 5.5V	1.8V ~ 5.5V	10µA @ 5.5V	-40°C ~ 85°C	Surface Mount	16-VQFN Exposed Pad	16-QFN (4x4)
	M41ST87WSS6F IC RTC CLK/CALENDAR I2C 20-SSOP STMicroelectronics	15	$10.02			Tape & Reel (TR)	Active	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	20-SSOP (0.209", 5.30mm Width)	20-SSOP
	PCF85363ATT/AJ IC RTC CLK/CALENDAR I2C 8TSSOP NXP USA Inc.	463	$1.55			Tape & Reel (TR)	Active	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
	M48T35-70PC1 IC RTC CLK/CALENDAR PAR 28DIP STMicroelectronics	4	$35.06		Timekeeper®	Tube	Active	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.75V ~ 5.5V	-	2mA @ 4.75V ~ 5.5V	0°C ~ 70°C	Through Hole	28-DIP Module (0.600", 15.24mm)	28-PCDIP, CAPHAT®
	DS1307Z/TR DS1307 64 X 8, SERIAL, I2C RTC Analog Devices Inc./Maxim Integrated	46	$0.00			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-
	DS1339U-33/T&R DS1339 I2C SERIAL RTC Analog Devices Inc./Maxim Integrated	316	$2.00			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-
	PCF85263ATT1/AZ IC RTC CLK/CALENDAR I2C 10TSSOP NXP USA Inc.	154	$1.44		Automotive, AEC-Q100	Tape & Reel (TR)	Active	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	I²C	0.9V ~ 1.8V, 0.9V ~ 5.5V	0.9V ~ 5.5V	0.885µA @ 3.3V	-40°C ~ 85°C (TA)	Surface Mount	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-TSSOP
	M41T65Q6F IC RTC CLK/CALENDAR I2C 16-QFN STMicroelectronics	184	$2.72		Timekeeper®	Tape & Reel (TR)	Obsolete	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.3V ~ 4.4V	-	0.7µA ~ 0.95µA @ 1.3V ~ 4.4V	-40°C ~ 85°C	Surface Mount	16-VFQFN Exposed Pad	16-QFN (3x3)
	M41T00AUDD1F IC RTC CLK/CALENDAR I2C 16-DFN STMicroelectronics	12	$2.98			Tape & Reel (TR)	Active	Clock/Calendar	Audio, Leap Year, Trickle-Charger	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	3V ~ 3.6V	1.7V ~ 3.6V	14.3mA @ 3V ~ 3.6V	0°C ~ 70°C	Surface Mount	16-VFDFN Exposed Pad	16-DFN (5x4)
	M41T62LC6F IC RTC CLK/CALENDAR I2C 8LCC STMicroelectronics	4	$6.12		Timekeeper®	Tape & Reel (TR)	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	1.3V ~ 4.4V	-	0.7µA ~ 0.95µA @ 1.3V ~ 4.4V	-40°C ~ 85°C	Surface Mount	8-LCC	8-LCC (1.5x3.2)
	PCA2131TF/Q900Y IC RTC W/XTAL AUTO HLSON16 NXP USA Inc.	186	$4.96			Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-
	DS3231MZ/V+T IC RTC CLK/CALENDAR I2C 8-SOIC Analog Devices Inc./Maxim Integrated	21	$5.31		Automotive, AEC-Q100	Tape & Reel (TR)	Not For New Designs	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.3V ~ 5.5V	2.3V ~ 5.5V	130µA ~ 200µA @ 3.63V ~ 5.5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
	M48T58Y-70MH1F IC RTC CLK/CALENDAR PAR 28-SOH STMicroelectronics	44	$15.68		Timekeeper®	Tape & Reel (TR)	Active	Clock/Calendar	Leap Year	-	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-SOIC (0.337", 8.56mm Width) with SNAPHAT Sockets	28-SOH
	PCF85063AT/AAZ IC RTC CLK/CALENDAR I2C 8SOIC NXP USA Inc.	356	$0.82			Tape & Reel (TR)	Active	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
	PCF8583P/F5,112 IC RTC CLK/CALENDAR I2C 8-DIP NXP USA Inc.	251	$0.00			Tube	Obsolete	Clock/Calendar	Alarm, NVSRAM, Square Wave Output	240B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD	I²C, 2-Wire Serial	2.5V ~ 6V	-	10µA ~ 50µA @ 1V ~ 5V	-40°C ~ 85°C	Through Hole	8-DIP (0.300", 7.62mm)	8-DIP
	PCF8563P/F4,112 IC RTC CLK/CALENDAR I2C 8-DIP NXP USA Inc.	249	$0.00			Tube	Obsolete	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6µA ~ 0.75µA @ 2V ~ 5V	-40°C ~ 85°C	Through Hole	8-DIP (0.300", 7.62mm)	8-DIP
	BQ3287EAMT IC RTC CLK/CALENDAR PAR 24-DIP Texas Instruments	45	$0.00			Tube	Obsolete	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	-	0°C ~ 70°C	Through Hole	24-DIP Module (0.61", 15.49mm)	24-DIP Module
	BQ3287MT-SB2 IC RTC CLK/CALENDAR PAR 24-DIP Texas Instruments	603	$0.00			Tube	Obsolete	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	-	-	Through Hole	24-DIP Module (0.61", 15.49mm)	24-DIP Module
	BQ4847YMT IC RTC CLK/CALENDAR PAR 28-DIP Texas Instruments	281	$0.00			Tube	Obsolete	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.3V ~ 4V	-	0°C ~ 70°C	Through Hole	28-DIP Module (0.61", 15.49mm)	28-DIP Module