Real Time Clocks

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Series	Package/Case	Packaging	Product Status	Programmable	Type	Features	Memory Size	Time Format	Date Format	Interface	Voltage - Supply	Voltage - Supply, Battery	Current - Timekeeping (Max)	Operating Temperature	Mounting Type	Grade	Qualification	Supplier Device Package
DS1501WSN/T&R IC RTC CLK/CALENDAR PAR 28SOIC Analog Devices Inc./Maxim Integrated	3,363	-	RFQ	Datasheet	-	28-SOIC (0.295", 7.50mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K	256B	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	3V ~ 3.6V	2.5V ~ 3.7V	4mA @ 3V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	28-SOIC
DS1315EN-33/T&R IC RTC PHANTOM CHIP PAR 20TSSOP Analog Devices Inc./Maxim Integrated	3,095	-	RFQ	Datasheet	-	20-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Phantom Time Chip	Leap Year	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	3V ~ 3.6V	2.5V ~ 3.7V	1.1mA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	20-TSSOP
DS1511Y IC RTC CLK/CALENDAR PAR 28EDIP Analog Devices Inc./Maxim Integrated	4,386	-	RFQ	Datasheet	-	28-DIP Module (0.600", 15.24mm)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K	256B	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	5mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Through Hole	-	-	28-EDIP
DS1687-3 IC RTC CLK/CALENDAR PAR 24EDIP Analog Devices Inc./Maxim Integrated	3,646	-	RFQ	Datasheet	-	24-DIP Module (0.600", 15.24mm)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, NVSRAM, Square Wave Output, Y2K	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 3.7V	2.5V ~ 3.7V	2mA @ 3V	0°C ~ 70°C	Through Hole	-	-	24-EDIP
DS1501WSN IC RTC CLK/CALENDAR PAR 28SOIC Analog Devices Inc./Maxim Integrated	4,070	-	RFQ	Datasheet	-	28-SOIC (0.295", 7.50mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K	256B	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	3V ~ 3.6V	2.5V ~ 3.7V	4mA @ 3V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	28-SOIC
DS1670S IC RTC SYST CTRLR SER 20SOIC Analog Devices Inc./Maxim Integrated	4,415	-	RFQ	Datasheet	-	20-SOIC (0.295", 7.50mm Width)	Tube	Obsolete	Not Verified	Portable System Controller	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2.97V ~ 3.63V	2.5V ~ 3.7V	100µA @ 3.3V	0°C ~ 70°C	Surface Mount	-	-	20-SOIC
RX-8581SA:B IC RTC CLK/CALENDAR I2C 14SOP EPSON	4,866	-	RFQ	Datasheet	RX-8581SA	14-SOIC (0.197", 5.00mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.8µA ~ 1.2µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	14-SOP
RTC-62421B IC RTC CLK/CALENDAR PAR 18DIP EPSON	2,083	-	RFQ	Datasheet	-	18-DIP (0.300", 7.62mm)	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	1.8µA ~ 3µA @ 2V ~ 5V	-40°C ~ 85°C	Through Hole	-	-	18-DIP
M41ST84YMQ6E IC RTC CLOCK/CALENDAR I2C 16SO STMicroelectronics	2,819	-	RFQ	Datasheet	-	16-SOIC (0.154", 3.90mm Width)	Tube	Obsolete	Not Verified	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	4.5V ~ 5.5V	2.5V ~ 3.5V	1mA @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	16-SO
M41ST85YMH6E IC RTC CLK/CALENDAR I2C 28SOH STMicroelectronics	2,846	-	RFQ	Datasheet	-	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	Tube	Obsolete	Not Verified	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	4.5V ~ 5.5V	2.5V ~ 3.5V	1mA @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	28-SOH
M41ST85YMX6 IC RTC CLOCK/CALENDAR I2C 28SO STMicroelectronics	4,775	-	RFQ	Datasheet	-	28-SOIC (0.295", 7.50mm Width)	Tube	Obsolete	Not Verified	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	4.5V ~ 5.5V	2.5V ~ 3.5V	1mA @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	28-SO
CDP68HC68T1E IC RTC CLK/CALENDAR SPI 16DIP Renesas Electronics Corporation	2,337	-	RFQ	Datasheet	-	16-DIP (0.300", 7.62mm)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	32B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	3V ~ 6V	2.2V ~ 6V	20µA ~ 500µA @ 5V	-40°C ~ 85°C	Through Hole	-	-	16-PDIP
CDP68HC68T1M IC RTC CLK/CALENDAR SPI 20SOIC Renesas Electronics Corporation	4,362	-	RFQ	Datasheet	-	20-SOIC (0.295", 7.50mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	32B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	3V ~ 6V	2.2V ~ 6V	20µA ~ 500µA @ 5V	-40°C ~ 85°C	Surface Mount	-	-	20-SOIC
CDP68HC68T1M2 IC RTC CLK/CALENDAR SPI 16SOIC Renesas Electronics Corporation	1,796	-	RFQ	Datasheet	-	16-SOIC (0.295", 7.50mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	32B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	3V ~ 6V	2.2V ~ 6V	20µA ~ 500µA @ 5V	-40°C ~ 85°C	Surface Mount	-	-	16-SOIC
DS1248Y-70IND IC RTC PHANTOM CHIP PAR 32EDIP Analog Devices Inc./Maxim Integrated	2,897	-	RFQ	Datasheet	-	32-DIP Module (0.600", 15.24mm)	Tube	Obsolete	Not Verified	Phantom Time Chip	NVSRAM	128KB	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	10mA @ 5V	-40°C ~ 85°C	Through Hole	-	-	32-EDIP
DS1338U-18 IC RTC CLOCK/CALENDAR I2C 8UMAX Analog Devices Inc./Maxim Integrated	4,099	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.71V ~ 5.5V	1.3V ~ 3.7V	100µA @ 1.89V	-40°C ~ 85°C	Surface Mount	-	-	8-uMAX/uSOP
DS1338U-3 IC RTC CLOCK/CALENDAR I2C 8UMAX Analog Devices Inc./Maxim Integrated	2,803	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7V ~ 5.5V	1.3V ~ 3.7V	200µA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	8-uMAX/uSOP
DS1338Z-18 IC RTC CLK/CALENDAR I2C 8SOIC Analog Devices Inc./Maxim Integrated	4,718	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.71V ~ 5.5V	1.3V ~ 3.7V	100µA @ 1.89V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
DS1338Z-3 IC RTC CLK/CALENDAR I2C 8SOIC Analog Devices Inc./Maxim Integrated	2,184	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7V ~ 5.5V	1.3V ~ 3.7V	200µA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
DS1338Z-33 IC RTC CLK/CALENDAR I2C 8SOIC Analog Devices Inc./Maxim Integrated	3,763	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	3V ~ 5.5V	1.3V ~ 3.7V	125µA ~ 200µA @ 3.63V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC

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