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
S-35390A-I8T1G IC RTC CLK/CALENDAR I2C SNT8A ABLIC Inc.	3,139	-	RFQ	Datasheet	-	8-SMD, Flat Leads	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	1.3V ~ 5.5V	-	0.93µA ~ 1.1µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	SNT-8A
1337DCGI8 IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	3,227	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6µA @ 1.3V ~ 1.8V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
RX8900SA:UC0 PURE SN IC RTC CLK/CALENDAR I2C 14SOP EPSON	1,719	-	RFQ	Datasheet	RX8900SA	14-SOIC (0.197", 5.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C	2.5V ~ 5.5V	1.6V ~ 5.5V	1.4µA ~ 1.5µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	14-SOP
M41T00M6E IC RTC CLK/CALENDAR I2C 8SOIC STMicroelectronics	1,912	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year	-	HH:MM:SS	YY-MM-DD-dd	I2C, 2-Wire Serial	2V ~ 5.5V	2.5V ~ 3.5V	70µA @ 2V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
M41T00SM6E IC RTC CLK/CALENDAR I2C 8SOIC STMicroelectronics	3,407	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	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	2V ~ 3.5V	70µA @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
V3021SO8A+ IC RTC CLK/CALENDAR SER 8SOIC EM Microelectronic	2,297	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tube	Last Time Buy	Not Verified	Clock/Calendar	Alarm, Leap Year, RAM	1B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2V ~ 5.5V	-	10µA @ 5V	-40°C ~ 85°C (TA)	Surface Mount	-	-	8-SOIC
DS1307Z+T&R/C01 IC RTC CLK/CALENDAR I2C 8SOIC Analog Devices Inc./Maxim Integrated	4,267	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	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	4.5V ~ 5.5V	2V ~ 3.5V	200µA @ 5V	0°C ~ 70°C	Surface Mount	-	-	8-SOIC
MCP795W10T-I/ST IC RTC CLK/CALENDAR SPI 14TSSOP Microchip Technology	1,444	-	RFQ	Datasheet	-	14-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	14-TSSOP
1339D-31DVGI8 1339D-31 REAL TIME CLOCK Renesas Electronics Corporation	1,421	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	Active	-	Clock/Calendar	Alarm, Leap Year, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C	3.3V ~ 5.5V	1.3V ~ 3.7V	150µA @ 3.63V	-40°C ~ 85°C (TA)	Surface Mount	-	-	8-TSSOP
DS1340U-33 IC RTC CLOCK/CALENDAR I2C 8UMAX Analog Devices Inc./Maxim Integrated	1,770	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, Trickle-Charger	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.97V ~ 5.5V	1.3V ~ 5.5V	150µA @ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-uMAX/uSOP
DS1302Z+T&R/C07 IC RTC CLK/CALENDAR SER 8SOIC Analog Devices Inc./Maxim Integrated	3,589	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Trickle-Charger	31B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2V ~ 5.5V	2V ~ 5.5V	0.3µA ~ 1µA @ 2V ~ 5V	0°C ~ 70°C	Surface Mount	-	-	8-SOIC
1338D-31DVGI8 1338D-31 REAL TIME CLOCK Renesas Electronics Corporation	3,637	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	Active	-	Clock/Calendar	Leap Year, RAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C	3.3V ~ 5.5V	1.3V ~ 3.7V	2µA @ 3.63V	-40°C ~ 85°C (TA)	Surface Mount	-	-	8-TSSOP
MCP795B21T-I/ST IC RTC CLK/CALENDAR SPI 14TSSOP Microchip Technology	2,420	-	RFQ	Datasheet	-	14-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 5.5V	1.3V ~ 5.5V	1µA @ 1.8V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	14-TSSOP
MCP795B22T-I/ST IC RTC CLK/CALENDAR SPI 14TSSOP Microchip Technology	4,186	-	RFQ	Datasheet	-	14-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 5.5V	1.3V ~ 5.5V	1µA @ 1.8V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	14-TSSOP
V3020TP8B+ IC RTC CLK/CALENDAR SER 8TSSOP EM Microelectronic	4,671	-	RFQ	Datasheet	-	8-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Last Time Buy	Not Verified	Clock/Calendar	Alarm, Leap Year, RAM	1B	HH:MM:SS	YY-MM-DD-dd	3-Wire Serial	1.2V ~ 5.5V	-	4µA ~ 7µA @ 3V ~ 5V	-40°C ~ 85°C (TA)	Surface Mount	-	-	8-TSSOP
MCP795W11-I/SL IC RTC CLK/CALENDAR SPI 14SOIC Microchip Technology	1,796	-	RFQ	Datasheet	-	14-SOIC (0.154", 3.90mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	14-SOIC
PCF85363ATT1/AJ IC RTC CLK/CALENDAR I2C 10TSSOP NXP USA Inc.	1,968	-	RFQ	Datasheet	-	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	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	-	-	10-TSSOP
MCP795W11T-I/SL IC RTC CLK/CALENDAR SPI 14SOIC Microchip Technology	3,454	-	RFQ	Datasheet	-	14-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	14-SOIC
MCP795W12T-I/SL IC RTC CLK/CALENDAR SPI 14SOIC Microchip Technology	2,365	-	RFQ	Datasheet	-	14-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	14-SOIC
MCP795W20T-I/SL IC RTC CLK/CALENDAR SPI 14SOIC Microchip Technology	4,464	-	RFQ	Datasheet	-	14-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	14-SOIC

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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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