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Real Time Clocks

Manufacturer Series Package/Case Packaging Part Status Programmable Type Memory Size Time Format Date Format Features Interface Voltage - Supply Voltage - Supply, Battery Current - Timekeeping (Max) Operating Temperature Supplier Device Package Mounting Style Qualification Grade























































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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Photo Mfr. Part # Availability Price Quantity Datasheet Series Package/Case Packaging Part Status Programmable Type Memory Size Time Format Date Format Features Interface Voltage - Supply Voltage - Supply, Battery Current - Timekeeping (Max) Operating Temperature Supplier Device Package Mounting Style Qualification Grade
RV-3129-C3-32.768KHZ-OPTION-B-TB-QA

RV-3129-C3-32.768KHZ-OPTION-B-TB-QA

IC RTC CLK/CALENDAR I2C 10SON

Micro Crystal AG

19,922
RV-3129-C3-32.768KHZ-OPTION-B-TB-QA

Datasheet

C3 10-VCDFN Tape & Reel (TR) Active Not Verified Clock/Calendar 2B, 8B HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, EEPROM, Leap Year, Programmable Clock Output, RAM, Temperature, Timer, Trickle Charger I2C, 2-Wire Serial 1.3V ~ 5.5V - 1µA @ 3V -40°C ~ 125°C (TA) 10-SON (3.7x2.5) Surface Mount AEC-Q200 Automotive
ISL12057IUZ-T

ISL12057IUZ-T

IC RTC CLK/CALENDAR I2C 8MSOP

Renesas Electronics Corporation

1,571
ISL12057IUZ-T

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar - HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Leap Year I2C, 2-Wire Serial 1.8V ~ 3.6V - 0.65µA @ 1.8V -40°C ~ 85°C 8-MSOP Surface Mount - -
ISL12057IUZ

ISL12057IUZ

IC RTC CLK/CALENDAR I2C 8MSOP

Renesas Electronics Corporation

1,201
ISL12057IUZ

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Not Verified Clock/Calendar - HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Leap Year I2C, 2-Wire Serial 1.8V ~ 3.6V - 0.65µA @ 1.8V -40°C ~ 85°C 8-MSOP Surface Mount - -
ISL1208IB8Z-TK

ISL1208IB8Z-TK

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

10,275
ISL1208IB8Z-TK

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar 2B HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Leap Year, SRAM I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 4µA ~ 6µA @ 3V ~ 5V -40°C ~ 85°C 8-SOIC Surface Mount - -
RV-3028-C7 32.768KHZ 1PPM-TA-QC

RV-3028-C7 32.768KHZ 1PPM-TA-QC

IC RTC CLK/CALENDAR I2C 8SON

Micro Crystal AG

29,131
RV-3028-C7 32.768KHZ 1PPM-TA-QC

Datasheet

C7 8-WCDFN Tape & Reel (TR) Active Not Verified Clock/Calendar 2B, 43B HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Battery Switch, EEPROM, External Event Interrupt, Leap Year, Programmable Clock Output, RAM, Timer, Trickle Charger I2C, 2-Wire Serial 1.1V ~ 5.5V 1.1V ~ 5.5V 0.06µA @ 3V -40°C ~ 85°C (TA) 8-SON (3.2x1.5) Surface Mount - -
R2025S-E2-FE

R2025S-E2-FE

IC RTC CLK/CALENDAR I2C 14SOP

Nisshinbo Micro Devices Inc.

6,632
R2025S-E2-FE

Datasheet

- 14-SOIC (0.197", 5.00mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar - HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Leap Year I2C, 2-Wire Serial 1.7V ~ 5.5V - 120µA ~ 1.8µA @ 3V ~ 5V -40°C ~ 85°C 14-SOP Surface Mount - -
PCA2131TF/Q900Y

PCA2131TF/Q900Y

IC RTC W/XTAL AUTO HLSON16

NXP USA Inc.

1,246
PCA2131TF/Q900Y

Datasheet

- - Tape & Reel (TR) Active Not Verified - - - - - - - - - - - - - -
RV-3028-C7 32.768KHZ 1PPM-TA-QA

RV-3028-C7 32.768KHZ 1PPM-TA-QA

IC RTC CLK/CALENDAR I2C 8SON

Micro Crystal AG

84,366
RV-3028-C7 32.768KHZ 1PPM-TA-QA

Datasheet

C7 8-WCDFN Tape & Reel (TR) Active Not Verified Clock/Calendar 2B, 43B HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Battery Switch, EEPROM, External Event Interrupt, Leap Year, Programmable Clock Output, RAM, Timer, Trickle Charger I2C, 2-Wire Serial 1.1V ~ 5.5V 1.1V ~ 5.5V 0.06µA @ 3V -40°C ~ 85°C (TA) 8-SON (3.2x1.5) Surface Mount AEC-Q200 Automotive
RV-2123-C2-32.768KHZ-20PPM-TA-QC

RV-2123-C2-32.768KHZ-20PPM-TA-QC

IC RTC CLK/CALENDAR SPI 10SON

Micro Crystal AG

39,417
RV-2123-C2-32.768KHZ-20PPM-TA-QC

Datasheet

C2 10-TDFN Exposed Pad Tape & Reel (TR) Active Not Verified Clock/Calendar - HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Leap Year, Programmable Clock Output, Timer SPI, 4-Wire Serial 1.1V ~ 5.5V - 0.18µA @ 3V -40°C ~ 85°C (TA) 10-SON (5x3.2) Surface Mount - -
M41T94MQ6F

M41T94MQ6F

IC RTC CLK/CALENDAR SPI 16SO

STMicroelectronics

5,978
M41T94MQ6F

Datasheet

- 16-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar 44B HH:MM:SS:hh (24 hr) YY-MM-DD-dd Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer SPI 2.7V ~ 5.5V 2.5V ~ 3.5V 1.4mA @ 2.7V ~ 5.5V -40°C ~ 85°C 16-SO Surface Mount - -
RV-8803-C7-32.768KHZ-3PPM-TA-QC

RV-8803-C7-32.768KHZ-3PPM-TA-QC

IC RTC CLK/CALENDAR I2C 8SON

Micro Crystal AG

9,374
RV-8803-C7-32.768KHZ-3PPM-TA-QC

Datasheet

C7 8-WCDFN Tape & Reel (TR) Active Not Verified Clock/Calendar 1B HH:MM:SS (24 hr) YY-MM-DD-dd Alarm, External Event Interrupt, Leap Year, Programmable Clock Output, RAM, Timer I2C, 2-Wire Serial 1.5V ~ 5.5V - 0.35µA @ 3V -40°C ~ 85°C (TA) 8-SON (3.2x1.5) Surface Mount - -
ISL1208IU8Z-TK

ISL1208IU8Z-TK

IC RTC CLK/CALENDAR I2C 8MSOP

Renesas Electronics Corporation

4,628
ISL1208IU8Z-TK

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar 2B HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Leap Year, SRAM I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 4µA ~ 6µA @ 3V ~ 5V -40°C ~ 85°C 8-MSOP Surface Mount - -
RV-8803-C7-32.768KHZ-3PPM-TA-QA

RV-8803-C7-32.768KHZ-3PPM-TA-QA

IC RTC CLK/CALENDAR I2C 8SON

Micro Crystal AG

19,258
RV-8803-C7-32.768KHZ-3PPM-TA-QA

Datasheet

C7 8-WCDFN Tape & Reel (TR) Active Not Verified Clock/Calendar 1B HH:MM:SS (24 hr) YY-MM-DD-dd Alarm, External Event Interrupt, Leap Year, Programmable Clock Output, RAM, Timer I2C, 2-Wire Serial 1.5V ~ 5.5V - 0.35µA @ 3V -40°C ~ 85°C (TA) 8-SON (3.2x1.5) Surface Mount AEC-Q200 Automotive
M41T93RMY6F

M41T93RMY6F

IC RTC CLK/CALENDAR SPI 18SOX

STMicroelectronics

8,712
M41T93RMY6F

Datasheet

- 18-SOX, 18-SOIC with Crystal (7.5mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar 7B HH:MM:SS:hh (24 hr) YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer SPI 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA @ 5.5V -40°C ~ 85°C 18-SOX Surface Mount - -
M41T83ZMY6F

M41T83ZMY6F

IC RTC CLK/CALENDAR I2C 18SOX

STMicroelectronics

885
M41T83ZMY6F

Datasheet

- 18-SOX, 18-SOIC with Crystal (7.5mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar 7B HH:MM:SS:hh (24 hr) YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer I2C, 2-Wire Serial 2.38V ~ 5.5V 2V ~ 5.5V 10µA @ 5.5V -40°C ~ 85°C 18-SOX Surface Mount - -
PCF2127T/2Y

PCF2127T/2Y

IC RTC CLOCK/CALENDAR I2C 16SO

NXP USA Inc.

1,052
PCF2127T/2Y

Datasheet

- 16-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar 512B HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer I2C, 2-Wire Serial 1.8V ~ 4.2V 1.8V ~ 4.2V 1.5µA @ 3.3V -40°C ~ 85°C 16-SO Surface Mount - -
RV-3129-C3-32.768KHZ-OPTION-B-TA-QC

RV-3129-C3-32.768KHZ-OPTION-B-TA-QC

IC RTC CLK/CALENDAR I2C 10SON

Micro Crystal AG

13,432
RV-3129-C3-32.768KHZ-OPTION-B-TA-QC

Datasheet

C3 10-VCDFN Tape & Reel (TR) Active Not Verified Clock/Calendar 2B, 8B HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, EEPROM, Leap Year, Programmable Clock Output, RAM, Temperature, Timer, Trickle Charger I2C, 2-Wire Serial 1.3V ~ 5.5V - 1µA @ 3V -40°C ~ 85°C (TA) 10-SON (3.7x2.5) Surface Mount - -
PCF2127AT/2Y

PCF2127AT/2Y

IC RTC CLOCK/CALENDAR I2C 20SO

NXP USA Inc.

5,658
PCF2127AT/2Y

Datasheet

- 20-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar 512B HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer I2C, 2-Wire Serial 1.8V ~ 4.2V 1.8V ~ 4.2V 1.5µA @ 3.3V -40°C ~ 85°C 20-SO Surface Mount - -
RV-3149-C3-32.768KHZ-OPTION-B-TA-QC

RV-3149-C3-32.768KHZ-OPTION-B-TA-QC

IC RTC CLK/CALENDAR SPI 10SON

Micro Crystal AG

4,648
RV-3149-C3-32.768KHZ-OPTION-B-TA-QC

Datasheet

C3 10-VCDFN Tape & Reel (TR) Active Not Verified Clock/Calendar 2B, 8B HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, EEPROM, Leap Year, Programmable Clock Output, RAM, Temperature, Timer, Trickle Charger SPI, 4-Wire Serial 1.3V ~ 5.5V - 1µA @ 3V -40°C ~ 85°C (TA) 10-SON (3.7x2.5) Surface Mount - -
RV-8523-C3-32.768KHZ-20PPM-TA-QC

RV-8523-C3-32.768KHZ-20PPM-TA-QC

IC RTC CLK/CALENDAR I2C 10SON

Micro Crystal AG

8,898
RV-8523-C3-32.768KHZ-20PPM-TA-QC

Datasheet

C3 10-VCDFN Tape & Reel (TR) Active Not Verified Clock/Calendar - HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Battery Switch, Leap Year, Programmable Clock Output, Timer, Watchdog Timer I2C, 2-Wire Serial 1.2V ~ 5.5V - 0.18µA @ 3V -40°C ~ 85°C (TA) 10-SON (3.7x2.5) Surface Mount - -
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