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
ISL12058IBZ IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	1,950	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 3.6V	-	0.65µA @ 1.8V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
MCP79521T-I/MS IC RTC CLK/CALENDAR SPI 10MSOP Microchip Technology	2,294	-	RFQ	Datasheet	-	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	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
S-35190A-J8T1U IC RTC CLK/CALENDAR SER 8SOP ABLIC Inc.	10,540	-	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	3-Wire Serial	1.3V ~ 5.5V	-	8µA ~ 14µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOP-J
R2051L02-E2 IC RTC CLK/CALENDAR I2C 16QFN Nisshinbo Micro Devices Inc.	8,475	-	RFQ	Datasheet	-	16-XFQFN Exposed Pad	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	-	-	QFN023023-16
S-35190A-I8T1U IC RTC CLK/CALENDAR SER SNT8A ABLIC Inc.	2,105	-	RFQ	Datasheet	-	8-SMD, Flat Leads	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	1.3V ~ 5.5V	-	0.93µA ~ 1.1µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	SNT-8A
RV5C348A-E2-F IC RTC CLK/CALENDAR SER 10SSOP Nisshinbo Micro Devices Inc.	5,609	-	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
MCP795W20-I/ST IC RTC CLK/CALENDAR SPI 14TSSOP Microchip Technology	186	-	RFQ	Datasheet	-	14-TSSOP (0.173", 4.40mm Width)	Tube	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
PT7C4337UEX IC RTC CLK/CALENDAR I2C 8MSOP Diodes Incorporated	1,226	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	Active	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	-	0.8µA @ 1.3V ~ 1.8V	-40°C ~ 85°C	Surface Mount	-	-	8-MSOP
PT7C43390LEX IC RTC CLK/CALENDAR I2C 8MSOP Diodes Incorporated	1,943	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.3V ~ 5.5V	-	0.65µA ~ 0.7µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-MSOP
S-35399A03-J8T1U IC RTC CLOCK/CALENDAR I2C 8SOP ABLIC Inc.	3,852	-	RFQ	Datasheet	S-35399A03	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 (TA)	Surface Mount	-	-	8-SOP-J
1339-31DVGI8 IC RTC CLK/CALENDAR I2C 8TSSOP Renesas Electronics Corporation	7,815	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	3.3V ~ 5.5V	1.3V ~ 3.7V	200µA @ 3.63V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-TSSOP
DS1391U-18+ IC RTC CLK/CALENDAR SPI 10UMAX Analog Devices Inc./Maxim Integrated	2,337	-	RFQ	Datasheet	-	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.71V ~ 1.89V	1.3V ~ 3.7V	100µA @ 1.71V ~ 1.89V	-40°C ~ 85°C	Surface Mount	-	-	10-uMAX/uSOP
DS1375T+T&R IC RTC CLK/CALENDAR I2C 6TDFN Analog Devices Inc./Maxim Integrated	274	-	RFQ	Datasheet	-	6-WDFN Exposed Pad	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output	16B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.7V ~ 5.5V	-	0.5µA @ 1.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	6-TDFN (3x3)
ISL12026AIVZ-T IC RTC CLK/CALENDAR I2C 8TSSOP Renesas Electronics Corporation	2,275	-	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	2.7V ~ 5.5V	1.8V ~ 5.5V	10µA ~ 20µA @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-TSSOP
R2025D-E2-F IC RTC CLK/CALENDAR I2C 22SON Nisshinbo Micro Devices Inc.	887	-	RFQ	Datasheet	-	22-SMD Module Exposed Pad	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	-	120µA ~ 1.8µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	22-SON (6.1x4.7)
RX4901CE XB B06 IC RTC CLK/CALENDAR SPI 10SMD EPSON	1,995	-	RFQ	Datasheet	RX4901CE	10-SMD, No Lead	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS	YY-MM-DD	SPI, 3-Wire Serial	1.6V ~ 5.5V	-	1.5µA @ 3V	-40°C ~ 105°C (TA)	Surface Mount	-	-	10-SMD
RX4901CE XB A06 IC RTC CLK/CALENDAR SPI 10SMD EPSON	1,989	-	RFQ	Datasheet	RX4901CE	10-SMD, No Lead	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS	YY-MM-DD	SPI, 3-Wire Serial	1.6V ~ 5.5V	-	1.5µA @ 3V	-40°C ~ 105°C (TA)	Surface Mount	-	-	10-SMD
RX4901CE XB D06 IC RTC CLK/CALENDAR SPI 10SMD EPSON	1,965	-	RFQ	Datasheet	RX4901CE	10-SMD, No Lead	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS	YY-MM-DD	SPI, 4-Wire Serial	1.6V ~ 5.5V	-	1.5µA @ 3V	-40°C ~ 105°C (TA)	Surface Mount	-	-	10-SMD
RX-8025SA:AC0 IC RTC CLK/CALENDAR I2C 14SOP EPSON	2,829	-	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
ISL12026AIBZ IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	950	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tube	Active	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

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