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

2231 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
	DS1747-70IND+ IC RTC CLK/CALENDAR PAR 32-EDIP Analog Devices Inc./Maxim Integrated	2	$48.50			Tube	Active	Clock/Calendar	Leap Year, NVSRAM, Y2K	512KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	4mA @ 5V	-40°C ~ 85°C	Through Hole	32-DIP Module (0.600", 15.24mm)	32-EDIP
	PCF8564AU/5BB/1,01 IC RTC CLK/CALENDAR I2C DIE NXP USA Inc.	81	$0.82			Bulk	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output, 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	Die	Die
	PCF8564AU/5GB/1,01 IC RTC CLK/CALENDAR I2C DIE NXP USA Inc.	137	$0.83			Bulk	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output, 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	Die	Die
	PCF85063AT/AAZ IC RTC CLK/CALENDAR I2C 8SOIC NXP USA Inc.	670	$0.84			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
	PCF2123U/12HA/1,00 IC RTC CLK/CALENDAR SPI DIE NXP USA Inc.	697	$0.94			Bulk	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.6V ~ 5.5V	-	0.33µA ~ 0.38µA @ 2V ~ 5V	-40°C ~ 85°C	-	Die	Die
	PCF8564AU/10AB/1,0 IC RTC CLK/CALENDAR I2C DIE NXP USA Inc.	429	$0.94			Bulk	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output, 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	Die	Die
	PCF2123U/10AA/1,00 IC RTC CLK/CALENDAR SPI DIE NXP USA Inc.	800	$1.05			Bulk	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.6V ~ 5.5V	-	0.33µA ~ 0.38µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	Die	Die
	PCF8564AUG/12HB/1V IC RTC CLK/CALENDAR I2C DIE NXP USA Inc.	524	$1.06			Tray	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output, 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	Die	Die
	PCF8523AUG/HAV IC RTC CLK/CALENDAR I2C 12WLCSP NXP USA Inc.	857	$1.08			Bulk	Active	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.6V ~ 5.5V	1.8V ~ 5.5V	0.5µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	Die	Die
	PCF8523U/12AA/1,00 IC RTC/CALENDAR UNCASED DIE FFC NXP USA Inc.	533	$1.37			Bulk	Last Time Buy	-	-	-	-	-	-	-	-	-	-	-	-	-
	PCA8565AU/5BB/1,01 IC RTC CLK/CALENDAR I2C UNCASED NXP USA Inc.	291	$1.59		Automotive, AEC-Q100	Bulk	Last Time Buy	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.8V ~ 5.5V	-	0.9µA ~ 1.8µA @ 2V ~ 5V	-40°C ~ 125°C	Surface Mount	Die	Die
	P8254-2 P8254 - PROGRAMMABLE TIMER, 3 TI Rochester Electronics, LLC	13	$20.46			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-
	ICM7170AIDG ICM7170 - REAL TIME CLOCK, CMOS Rochester Electronics, LLC	9	$61.96			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-
	MAX31343EKA+ ACCURATE/ROBUST RTC WITH INTEGRA Analog Devices Inc./Maxim Integrated	159	$0.00			Strip	Active	Clock/Calendar	Alarm	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	I²C	1.6V ~ 5.5V	-	2µA @ 5.5V	-40°C ~ 85°C (TA)	Surface Mount	8-VFBGA, WLBGA	8-WLP (2.07x2.27)
	MAX31341CETB+ RTC WITH POWER MANAGEMENT Analog Devices Inc./Maxim Integrated	447	$0.00			Tube	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output	64B	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C	1.6V ~ 3.6V	1.6V ~ 3.6V	0.33µA ~ 0.39µA @ 1.6V ~ 3.6V	-40°C ~ 85°C	Surface Mount	10-WFDFN Exposed Pad	10-TDFN (3x3)
	PCF8583P/F5,112 IC RTC CLK/CALENDAR I2C 8-DIP NXP USA Inc.	383	$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
	PCF8593P,112 IC RTC CLK/CALENDAR I2C 8-DIP NXP USA Inc.	171	$0.00			Tube	Obsolete	Clock/Calendar	Alarm, NVSRAM	8B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.5V ~ 6V	-	8µA ~ 15µA @ 2V ~ 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.	310	$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
	DP8573AN IC RTC CLK/CALENDAR PAR 24-DIP Texas Instruments	69	$0.00			Tube	Obsolete	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.2V ~ 5.1V	1µA @ 5V	-40°C ~ 85°C	Through Hole	24-DIP (0.300", 7.62mm)	24-DIP
	BQ3285EP IC RTC CLK/CALENDAR PAR 24-DIP Texas Instruments	121	$2.99			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	2.5V ~ 4V	300µA @ 5V	0°C ~ 70°C	Through Hole	24-DIP (0.600", 15.24mm)	24-PDIP