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
MAX6917EO50+ IC RTC CLK/CAL/SUPER I2C 20QSOP Analog Devices Inc./Maxim Integrated	2,972	-	RFQ	Datasheet	-	20-SSOP (0.154", 3.90mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar/Supervisor	-	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	4.5V ~ 5.5V	-	-	-40°C ~ 85°C	Surface Mount	-	-	20-QSOP
MAX6916EO50+ IC RTC CLK/CAL/SUPER SPI 20QSOP Analog Devices Inc./Maxim Integrated	3,638	-	RFQ	Datasheet	-	20-SSOP (0.154", 3.90mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar/Supervisor	-	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI, 3-Wire Serial	4.5V ~ 5.5V	-	-	-	Surface Mount	-	-	20-QSOP
MAX6917EO33+ IC RTC CLK/CAL/SUPER I2C 20QSOP Analog Devices Inc./Maxim Integrated	4,271	-	RFQ	Datasheet	-	20-SSOP (0.154", 3.90mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar/Supervisor	-	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	3V ~ 3.6V	-	-	-40°C ~ 85°C	Surface Mount	-	-	20-QSOP
RX-4575LC:B3 IC RTC CLK/CALENDAR SER 12VSOJ EPSON	1,445	-	RFQ	Datasheet	-	12-TFSOJ (0.094", 2.40mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	3-Wire Serial	1.6V ~ 5.5V	-	0.7µA ~ 0.9µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	12-VSOJ
DS17485S-3 IC RTC CLK/CALENDAR PAR 24SOIC Analog Devices Inc./Maxim Integrated	1,410	-	RFQ	Datasheet	-	24-SOIC (0.295", 7.50mm Width)	Tube	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	2.7V ~ 3.7V	2.5V ~ 3.7V	2mA @ 2.7V ~ 3.7V	0°C ~ 70°C	Surface Mount	-	-	24-SOIC
DS17485S-5 IC RTC CLK/CALENDAR PAR 24SOIC Analog Devices Inc./Maxim Integrated	1,717	-	RFQ	Datasheet	-	24-SOIC (0.295", 7.50mm Width)	Tube	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	-	-	24-SOIC
DS17485S-5/T&R IC RTC CLK/CALENDAR PAR 24SOIC Analog Devices Inc./Maxim Integrated	3,356	-	RFQ	Datasheet	-	24-SOIC (0.295", 7.50mm Width)	Tape & Reel (TR)	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	-	-	24-SOIC
DS1682S IC RTC ELAPSED CNT I2C 8SOIC Analog Devices Inc./Maxim Integrated	2,628	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tube	Obsolete	Not Verified	Elapsed Time Counter	Alarm, EEPROM	10B	Binary	Binary	I2C, 2-Wire Serial	2.5V ~ 5.5V	-	4µA ~ 15µA @ 3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
V3022SO28B+ LINEAR IC EM Microelectronic	2,075	-	RFQ	Datasheet	-	28-SOIC (0.295", 7.50mm Width)	Tape & Reel (TR)	Last Time Buy	-	Clock/Calendar	Alarm, Leap Year, RAM	8B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	-	2V ~ 5.5V	-	10µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	28-SOIC
RTC-72423B3:PURE SN IC RTC CLK/CALENDAR PAR 24SOP EPSON	1,490	-	RFQ	Datasheet	RTC-72423	24-SOIC (0.311", 7.90mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	5µA ~ 10µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	24-SOP
RX-8035LCAA3 PURE SN IC RTC EVENT REC I2C 12VSOJ EPSON	4,228	-	RFQ	Datasheet	RX-8035LC	12-TFSOJ (0.094", 2.40mm Width)	Tape & Reel (TR)	Active	-	Clock/Calendar	Alarm	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C	2.4V ~ 5.5V	1V ~ 5.5V	2.5µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	12-VSOJ
RX-4803SA:UB3 PURE SN IC RTC CLK/CALENDAR SPI 14SOP EPSON	3,667	-	RFQ	Datasheet	RX-4803SA	14-SOIC (0.197", 5.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	SPI	1.6V ~ 5.5V	-	2.1µA ~ 3.4µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	14-SOP
RX-8803SA:UC3 PURE SN IC RTC CLK/CALENDAR I2C 14SOP EPSON	4,653	-	RFQ	Datasheet	RX-8803SA	14-SOIC (0.197", 5.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS	YY-MM-DD	I2C	1.6V ~ 5.5V	-	2.1µA ~ 3.4µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	14-SOP
RX-8035LC:AA3 PURE SN IC RTC EVENT REC I2C 12VSOJ EPSON	3,265	-	RFQ	Datasheet	RX-8035LC	12-TFSOJ (0.094", 2.40mm Width)	Tape & Reel (TR)	Active	Not Verified	Time Event Recorder	Alarm	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.4V ~ 5.5V	1V ~ 5.5V	2.5µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	12-VSOJ
RX-8025SA:AC3 PURE SN IC RTC CLK/CALENDAR I2C 14SOP EPSON	1,366	-	RFQ	Datasheet	RX-8025SA	14-SOIC (0.197", 5.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.7V ~ 5.5V	-	1.2µA ~ 1.8µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	14-SOP
DS1685EN-5+T&R IC RTC CLK/CALENDAR PAR 24TSSOP Analog Devices Inc./Maxim Integrated	4,035	-	RFQ	Datasheet	-	24-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, NVSRAM, Square Wave Output, Y2K	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	3mA @ 5V	-40°C ~ 85°C	Surface Mount	-	-	24-TSSOP
MAX6910EO33+ IC RTC CLK/CAL/SUPER I2C 20QSOP Analog Devices Inc./Maxim Integrated	3,079	-	RFQ	Datasheet	-	20-SSOP (0.154", 3.90mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar/Supervisor	-	31B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	3V ~ 3.6V	-	-	-	Surface Mount	-	-	20-QSOP
DS1500YE IC RTC CLK/CALENDAR PAR 32TSOP Analog Devices Inc./Maxim Integrated	2,291	-	RFQ	Datasheet	-	32-LFSOP (0.724", 18.40mm 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	4.5V ~ 5.5V	2.5V ~ 3.7V	5mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	-	-	32-TSOP
DS1500WE IC RTC CLK/CALENDAR PAR 32TSOP Analog Devices Inc./Maxim Integrated	1,218	-	RFQ	Datasheet	-	32-LFSOP (0.724", 18.40mm 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	-	-	32-TSOP
M48T212V-85MH1E IC RTC CLK/CALENDAR PAR 44SOH STMicroelectronics	2,219	-	RFQ	Datasheet	Timekeeper®	44-BSOP (0.337", 8.56mm Width) requires SNAPHAT	Tube	Obsolete	Not Verified	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-SOH

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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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