Real Time Clocks

Photo Mfr. Part # Availability 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
BQ4802YDWR

BQ4802YDWR

IC RTC CLK/CALENDAR PAR 28SOIC

Texas Instruments

517
RFQ
Datasheet - 28-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.4V ~ 4V 1.5mA (Typ) @ 4.5 V ~ 5.5 V 0°C ~ 70°C Surface Mount - - 28-SOIC
MCP79401-I/ST

MCP79401-I/ST

IC RTC CLK/CALENDAR I2C 8TSSOP

Microchip Technology

370
RFQ
Datasheet - 8-TSSOP (0.173", 4.40mm 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-TSSOP
ISL12058IBZ

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

MCP79521T-I/MS

IC RTC CLK/CALENDAR SPI 10MSOP

Microchip Technology

2,294
RFQ

-

- 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
MCP795W20-I/ST

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

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

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
1339-31DVGI8

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
ISL12026AIVZ-T

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
ISL12026AIBZ

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
BQ4802LYPWR

BQ4802LYPWR

IC RTC CLK/CALENDAR PAR 28TSSOP

Texas Instruments

293
RFQ
Datasheet - 28-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 2.7V ~ 3.6V 2.4V ~ 4V 1.5mA (Typ) @ 2.7 V ~ 3.6 V 0°C ~ 70°C Surface Mount - - 28-TSSOP
BQ4802LYDWR

BQ4802LYDWR

IC RTC CLK/CALENDAR PAR 28SOIC

Texas Instruments

781
RFQ
Datasheet - 28-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 2.7V ~ 3.6V 2.4V ~ 4V 1.5mA (Typ) @ 2.7 V ~ 3.6 V 0°C ~ 70°C Surface Mount - - 28-SOIC
M48T37Y-70MH1F

M48T37Y-70MH1F

IC RTC CLK/CALENDAR PAR 44SOH

STMicroelectronics

269
RFQ
Datasheet Timekeeper® 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm, Leap Year, Watchdog Timer - HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - 3mA @ 4.5V ~ 5.5V 0°C ~ 70°C Surface Mount - - 44-SOH
MCP79400T-I/MNY

MCP79400T-I/MNY

IC RTC CLK/CALENDAR I2C 8TDFN

Microchip Technology

4,059
RFQ
Datasheet - 8-WFDFN Exposed Pad Tape & Reel (TR) 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-TDFN (2x3)
PT7C4337WEX

PT7C4337WEX

IC RTC CLK/CALENDAR I2C 8SOIC

Diodes Incorporated

4,221
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 (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 (TA) Surface Mount - - 8-SOIC
BU9873NUX-TTR

BU9873NUX-TTR

IC RTC CLK/CALENDAR I2C 8VSON

Rohm Semiconductor

9,119
RFQ
Datasheet - 8-UFDFN Exposed Pad Tape & Reel (TR) Not For New Designs Not Verified Clock/Calendar Alarm, Leap Year - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1.8V ~ 5.5V - 1µA ~ 1.35µA @ 3V ~ 5.5V -40°C ~ 85°C Surface Mount - - VSON008X2030
BU9873FVT-GE2

BU9873FVT-GE2

IC RTC CLK/CALENDAR I2C 8TSSOP

Rohm Semiconductor

5,505
RFQ
Datasheet - 8-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Not For New Designs Not Verified Clock/Calendar Alarm, Leap Year - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1.8V ~ 5.5V - 1µA ~ 1.35µA @ 3V ~ 5.5V -40°C ~ 85°C Surface Mount - - 8-TSSOP-B
1338D-31DVGI

1338D-31DVGI

1338D-31 REAL TIME CLOCK

Renesas Electronics Corporation

384
RFQ
Datasheet - 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube 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
BU9873F-GTE2

BU9873F-GTE2

IC RTC CLOCK/CALENDAR I2C 8SOP

Rohm Semiconductor

281
RFQ
Datasheet - 8-SOIC (0.173", 4.40mm Width) Tape & Reel (TR) Not For New Designs Not Verified Clock/Calendar Alarm, Leap Year - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1.8V ~ 5.5V - 1µA ~ 1.35µA @ 3V ~ 5.5V -40°C ~ 85°C Surface Mount - - 8-SOP
MCP795W21-I/ST

MCP795W21-I/ST

IC RTC CLK/CALENDAR SPI 14TSSOP

Microchip Technology

192
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
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