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
MCP79402-I/MS IC RTC CLK/CALENDAR I2C 8MSOP Microchip Technology	169	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2µA (Typ) @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	8-MSOP
MCP79412-I/MS IC RTC CLK/CALENDAR I2C 8MSOP Microchip Technology	686	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	8-MSOP
MCP79411T-I/MNY IC RTC CLK/CALENDAR I2C 8TDFN Microchip Technology	2,604	-	RFQ	Datasheet	-	8-WFDFN Exposed Pad	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	8-TDFN (2x3)
BQ32002D IC RTC CLK/CALENDAR I2C 8SOIC Texas Instruments	220	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tube	Active	Not Verified	Clock/Calendar	Leap Year, Square Wave Output	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	3V ~ 3.6V	1.4V ~ 3.6V	200µA @ 3.3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	8-SOIC
MCP79520-I/MS IC RTC CLK/CALENDAR SPI 10MSOP Microchip Technology	869	-	RFQ	Datasheet	-	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	10-MSOP
R2221T-E2-F IC RTC CLK/CALENDAR I2C 10TSSOP Nisshinbo Micro Devices Inc.	4,974	-	RFQ	Datasheet	-	10-VFSOP, 10-MSOP (0.110", 2.80mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, RAM	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.5V ~ 5.5V	-	0.9µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	10-TSSOPG
S-35390A-T8T1U IC RTC CLK/CALENDAR I2C 8TSSOP ABLIC Inc.	176	-	RFQ	Datasheet	-	8-TSSOP (0.173", 4.40mm 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	1.3V ~ 5.5V	-	14µA ~ 30µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-TSSOP
RV5C348B-E2-F IC RTC CLK/CALENDAR SER 10SSOP Nisshinbo Micro Devices Inc.	15,798	-	RFQ	Datasheet	-	10-LFSOP, 10-MSOP (0.110", 2.80mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	4-Wire Serial	2V ~ 5.5V	-	1µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	10-SSOP-G
R2223L-E2 IC RTC CLOCK/CALENDAR I2C 12QFN Nisshinbo Micro Devices Inc.	12,000	-	RFQ	Datasheet	-	12-XFQFN Exposed Pad	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, RAM	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.5V ~ 5.5V	-	0.9µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	QFN018018-12
BQ32000D IC RTC CLK/CALENDAR I2C 8SOIC Texas Instruments	400	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tube	Active	Not Verified	Clock/Calendar	Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	3V ~ 3.6V	1.4V ~ 3.6V	100µA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
R2051S01-E2-F IC RTC CLK/CALENDAR I2C 16SSOP Nisshinbo Micro Devices Inc.	3,945	-	RFQ	Datasheet	-	16-LSSOP (0.173", 4.40mm 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	2.34V ~ 5.5V	-	1µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	16-SSOP
PT7C4372ALEX IC RTC CLK/CALENDAR I2C 8TSSOP Diodes Incorporated	4,310	-	RFQ	Datasheet	-	8-TSSOP (0.173", 4.40mm 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	1.8V ~ 6V	-	0.8µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	8-TSSOP
MCP795W12-I/SL IC RTC CLK/CALENDAR SPI 14SOIC Microchip Technology	223	-	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
MCP795W11-I/ST IC RTC CLK/CALENDAR SPI 14TSSOP Microchip Technology	107	-	RFQ	Datasheet	-	14-TSSOP (0.173", 4.40mm 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-TSSOP
MCP795W22-I/SL IC RTC CLK/CALENDAR SPI 14SOIC Microchip Technology	128	-	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
MCP795W22-I/ST IC RTC CLK/CALENDAR SPI 14TSSOP Microchip Technology	172	-	RFQ	Datasheet	-	14-TSSOP (0.173", 4.40mm 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-TSSOP
S-35390A-J8T1U IC RTC CLOCK/CALENDAR I2C 8SOP ABLIC Inc.	5,342	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm 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	1.3V ~ 5.5V	-	14µA ~ 30µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOP-J
RX6110SA:B0 PURE SN IC RTC CLK/CALENDAR I2C 14SOP EPSON	2,686	-	RFQ	Datasheet	RX6110SA	14-SOIC (0.197", 5.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, SRAM	16B	-	-	I2C, SPI	1.6V ~ 5.5V	-	0.25µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	14-SOP
M41T80M6F IC RTC CLK/CALENDAR I2C 8SOIC STMicroelectronics	6,123	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2V ~ 5.5V	-	2.4µA ~ 31µA @ 2V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
1338-31DVGI IC RTC CLK/CALENDAR I2C 8MSOP Renesas Electronics Corporation	354	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tube	Active	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	3.3V ~ 5.5V	1.3V ~ 3.7V	5µA @ 3.63V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-MSOP

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