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
ISL12026IBZ-T7A IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	2,440	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7V ~ 5.5V	1.8V ~ 5.5V	10µA ~ 20µA @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
M41T00CAPPC1 IC RTC CLK/CALENDAR I2C 24-DIP STMicroelectronics	4,545	-	RFQ	Datasheet	Timekeeper®, CAPHAT™	24-DIP (0.600", 15.24mm)	Tube	Obsolete	Not Verified	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-PCDIP, CAPHAT®
RX-8801JE:UA3 ROHS IC RTC CLK/CALENDAR I2C 20VSOJ EPSON	2,403	-	RFQ	Datasheet	-	20-LSSOJ (0.213", 5.40mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.6V ~ 5.5V	-	2.8µA ~ 3.4µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	20-VSOJ
DS17485E-5 IC RTC CLK/CALENDAR PAR 28TSOP Analog Devices Inc./Maxim Integrated	1,383	-	RFQ	Datasheet	-	28-TSSOP (0.465", 11.80mm Width)	Bag	Obsolete	Not Verified	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	4KB	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	3mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	-	-	28-TSOP
DS1501WE IC RTC CLK/CALENDAR PAR 28TSOP Analog Devices Inc./Maxim Integrated	2,704	-	RFQ	Datasheet	-	28-TSSOP (0.465", 11.80mm Width)	Bag	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	0°C ~ 70°C	Surface Mount	-	-	28-TSOP
DS1689S+ IC RTC CLK/CALENDAR PAR 28SOIC Analog Devices Inc./Maxim Integrated	4,371	-	RFQ	Datasheet	-	28-SOIC (0.337", 8.56mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	NVSRAM	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 3.3V, 4.5V ~ 5.5V	2.5V ~ 3.7V	2mA @ 3V, 3mA @ 5V	0°C ~ 70°C	Surface Mount	-	-	28-SOIC
DS1688S+ IC RTC CLK/CALENDAR PAR 28SOIC Analog Devices Inc./Maxim Integrated	4,746	-	RFQ	Datasheet	-	28-SOIC (0.337", 8.56mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Unique ID	114B	HH:MM:SS (12/24 hr)	YY-MM-DD	Parallel	2.7V ~ 3.3V, 4.5V ~ 5.5V	-	-	0°C ~ 70°C	Surface Mount	-	-	28-SOIC
RX-4803SAUBX PURE SN IC RTC CLK/CALENDAR SER 14SOP EPSON	1,619	-	RFQ	Datasheet	RX-4803SA	14-SOIC (0.197", 5.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS	YY-MM-DD-dd	4-Wire Serial	1.6V ~ 5.5V	1.6V ~ 5.5V	2.1µA ~ 3.4µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	14-SOP
DS1501Y+ IC RTC CLK/CALENDAR PAR 28DIP Analog Devices Inc./Maxim Integrated	4,854	-	RFQ	Datasheet	-	28-DIP (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-PDIP
M41T256YMT7E IC RTC CLK/CALENDAR I2C 44SOH STMicroelectronics	2,416	-	RFQ	Datasheet	Timekeeper®	44-BSOP (0.337", 8.56mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM	32KB	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	4.5V ~ 5.5V	2.5V ~ 3.5V	2.5mA @ 4.5V ~ 5.5V	-25°C ~ 70°C	Surface Mount	-	-	44-SOH
DS1284 IC RTC CLK/CALENDAR PAR 28DIP Analog Devices Inc./Maxim Integrated	4,518	-	RFQ	Datasheet	-	28-DIP (0.600", 15.24mm)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	50B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.4V ~ 3.5V	7mA @ 5V	0°C ~ 70°C	Through Hole	-	-	28-PDIP
RX-4035SA:B3 PURE SN IC RTC TIME EVENT REC SPI 14SOP EPSON	2,340	-	RFQ	Datasheet	RX-4035SA	14-SOIC (0.197", 5.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Time Event Recorder	Alarm, Leap Year	-	-	-	SPI	2.4V ~ 5.5V	1V ~ 5.5V	2.5µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	14-SOP
RX8901CE XS B03 IC RTC CLK/CALENDAR I2C 10SMD EPSON	1,150	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
RX4901CE XB A03 IC RTC CLK/CALENDAR SPI 10SMD EPSON	1,729	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
RX4901CE XB B03 IC RTC CLK/CALENDAR SPI 10SMD EPSON	4,194	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
RX8901CE XS A03 IC RTC CLK/CALENDAR I2C 10SMD EPSON	2,784	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
RX4901CE XB C03 IC RTC CLK/CALENDAR SPI 10SMD EPSON	4,337	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
RX4901CE XS A03 IC RTC CLK/CALENDAR SPI 10SMD EPSON	4,334	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
RX4901CE XS C03 IC RTC CLK/CALENDAR SPI 10SMD EPSON	3,661	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
RX8901CE XB A03 IC RTC CLK/CALENDAR I2C 10SMD EPSON	4,302	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

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Real Time Clocks FAQ

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Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.

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