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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
RTC-4543SA:A:PURE SN

RTC-4543SA:A:PURE SN

IC RTC CLK/CALENDAR SER 14SOP

EPSON

2,618
RTC-4543SA:A:PURE SN

Datasheet

RTC-4543SA 14-SOIC (0.197", 5.00mm Width) Strip Obsolete Not Verified Clock/Calendar - - - - 3-Wire Serial 2.5V ~ 5.5V - 1µA ~ 3µA @ 2V ~ 5V -40°C ~ 85°C 14-SOP Surface Mount - -
RTC-4543SA:A3:PURE SN

RTC-4543SA:A3:PURE SN

IC RTC CLK/CALENDAR SER 14SOP

EPSON

1,021
RTC-4543SA:A3:PURE SN

Datasheet

RTC-4543SA 14-SOIC (0.197", 5.00mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar - - - - 3-Wire Serial 2.5V ~ 5.5V - 1µA ~ 3µA @ 2V ~ 5V -40°C ~ 85°C 14-SOP Surface Mount - -
RTC-4543SA:B0:PURE SN

RTC-4543SA:B0:PURE SN

IC RTC CLK/CALENDAR SER 14SOP

EPSON

4,253
RTC-4543SA:B0:PURE SN

Datasheet

RTC-4543SA 14-SOIC (0.197", 5.00mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar - - - - 3-Wire Serial 2.5V ~ 5.5V - 1µA ~ 3µA @ 2V ~ 5V -40°C ~ 85°C 14-SOP Surface Mount - -
RTC-4574SA:B0:PURE SN

RTC-4574SA:B0:PURE SN

IC RTC CLK/CALENDAR SER 14SOP

EPSON

1,202
RTC-4574SA:B0:PURE SN

Datasheet

RTC-4574SA 14-SOIC (0.197", 5.00mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar - - - Alarm 3-Wire Serial 1.6V ~ 5.5V - 1µA ~ 2µA @ 3V ~ 5V -40°C ~ 85°C 14-SOP Surface Mount - -
RX-8581SA:B0:PURE SN

RX-8581SA:B0:PURE SN

IC RTC CLK/CALENDAR I2C 14SOP

EPSON

4,252
RX-8581SA:B0:PURE SN

Datasheet

RX-8581SA 14-SOIC (0.197", 5.00mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar - - - Alarm I2C 1.8V ~ 5.5V - 0.8µA ~ 1.2µA @ 3V ~ 5V -40°C ~ 85°C 14-SOP Surface Mount - -
RX-8581SA:B:PURE SN

RX-8581SA:B:PURE SN

IC RTC CLK/CALENDAR I2C 14SOP

EPSON

4,655
RX-8581SA:B:PURE SN

Datasheet

RX-8581SA 14-SOIC (0.197", 5.00mm Width) Tube Obsolete Not Verified Clock/Calendar - - - Alarm I2C 1.8V ~ 5.5V - 0.8µA ~ 1.2µA @ 3V ~ 5V -40°C ~ 85°C 14-SOP Surface Mount - -
MAX31341BEWC+

MAX31341BEWC+

IC RTC CLK/CALENDAR I2C 12WLP

Analog Devices Inc./Maxim Integrated

1,517
MAX31341BEWC+

Datasheet

- 12-WFBGA, WLBGA Strip Active Not Verified Clock/Calendar 64B HH:MM:SS (24 hr) YY-MM-DD-dd Alarm, Leap Year, Square Wave Output I2C 1.6V ~ 3.6V 1.6V ~ 3.6V 0.33µA ~ 0.39µA @ 1.6V ~ 3.6V -40°C ~ 85°C 12-WLP (2.14x1.56) Surface Mount - -
DS1306EN+T&R/C04

DS1306EN+T&R/C04

IC INTEGRATED CIRCUIT

Analog Devices Inc./Maxim Integrated

4,622
DS1306EN+T&R/C04

Datasheet

* - Tape & Reel (TR) Obsolete Not Verified - - - - - - - - - - - - - -
1337ACSRI

1337ACSRI

IC RTC CLK/CALENDAR I2C 16SOIC

Renesas Electronics Corporation

1,560
1337ACSRI

Datasheet

- 16-SOIC (0.295", 7.50mm Width) Bulk Obsolete Not Verified Clock/Calendar - HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Leap Year, Square Wave Output I2C 1.8V ~ 5.5V 1.3V ~ 3.7V 0.6µA @ 1.3V ~ 1.8V -40°C ~ 85°C 16-SOIC Surface Mount - -
1337CSRI

1337CSRI

IC RTC CLK/CALENDAR I2C 16SOIC

Renesas Electronics Corporation

4,934
1337CSRI

Datasheet

- 16-SOIC (0.295", 7.50mm Width) Bulk Obsolete Not Verified Clock/Calendar - HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Leap Year, Square Wave Output I2C 1.8V ~ 5.5V 1.3V ~ 3.7V 0.6µA @ 1.3V ~ 1.8V -40°C ~ 85°C 16-SOIC Surface Mount - -
1337CSRI8

1337CSRI8

IC RTC CLK/CALENDAR I2C 16SOIC

Renesas Electronics Corporation

2,992
1337CSRI8

Datasheet

- 16-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar - HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Leap Year, Square Wave Output I2C 1.8V ~ 5.5V 1.3V ~ 3.7V 0.6µA @ 1.3V ~ 1.8V -40°C ~ 85°C 16-SOIC Surface Mount - -
1338A-31DVGI

1338A-31DVGI

IC RTC CLK/CALENDAR I2C 8TSSOP

Renesas Electronics Corporation

3,156
1338A-31DVGI

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Bulk Obsolete Not Verified Clock/Calendar 56b HH:MM:SS (12/24 hr) YY-MM-DD-dd Leap Year, NVSRAM, Square Wave Output I2C 2.7V ~ 5.5V 1.3V ~ 3.7V 5µA @ 3.63V ~ 5.5V -40°C ~ 85°C 8-TSSOP Surface Mount - -
1338A-31DVGI8

1338A-31DVGI8

IC RTC CLK/CALENDAR I2C 8TSSOP

Renesas Electronics Corporation

1,807
1338A-31DVGI8

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar 56b HH:MM:SS (12/24 hr) YY-MM-DD-dd Leap Year, NVSRAM, Square Wave Output I2C 2.7V ~ 5.5V 1.3V ~ 3.7V 5µA @ 3.63V ~ 5.5V -40°C ~ 85°C 8-TSSOP Surface Mount - -
1339A-31DVGI

1339A-31DVGI

IC RTC CLK/CALENDAR I2C 8TSSOP

Renesas Electronics Corporation

2,568
1339A-31DVGI

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Bulk Obsolete Not Verified Clock/Calendar - HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, Trickle-Charger I2C 2.7V ~ 5.5V 1.3V ~ 3.7V 200µA @ 3.63V ~ 5.5V -40°C ~ 85°C 8-TSSOP Surface Mount - -
1339A-31DVGI8

1339A-31DVGI8

IC RTC CLK/CALENDAR I2C 8TSSOP

Renesas Electronics Corporation

2,417
1339A-31DVGI8

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar - HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, Trickle-Charger I2C 2.7V ~ 5.5V 1.3V ~ 3.7V 200µA @ 3.63V ~ 5.5V -40°C ~ 85°C 8-TSSOP Surface Mount - -
1339B-31DVGI

1339B-31DVGI

IC RTC CLK/CALENDAR I2C 8TSSOP

Renesas Electronics Corporation

3,383
1339B-31DVGI

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Bulk Obsolete Not Verified Clock/Calendar - HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, Trickle-Charger I2C 2.7V ~ 5.5V 1.3V ~ 3.7V 200µA @ 3.63V ~ 5.5V -40°C ~ 85°C 8-TSSOP Surface Mount - -
1339B-31DVGI8

1339B-31DVGI8

IC RTC CLK/CALENDAR I2C 8TSSOP

Renesas Electronics Corporation

4,662
1339B-31DVGI8

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar - HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, Trickle-Charger I2C 2.7V ~ 5.5V 1.3V ~ 3.7V 200µA @ 3.63V ~ 5.5V -40°C ~ 85°C 8-TSSOP Surface Mount - -
ISL12028IBZ-T

ISL12028IBZ-T

IC RTC CLK/CALENDAR I2C 14SOIC

Intersil

4,163
ISL12028IBZ-T

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Bulk Obsolete Not Verified Clock/Calendar - HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Leap Year, Supervisor, Watchdog Timer I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5.5V -40°C ~ 85°C 14-SOIC Surface Mount - -
V3023SO28A+

V3023SO28A+

IC RTC CLOCK/CALENDAR 28SOIC

EM Microelectronic

1,830
V3023SO28A+

Datasheet

- 28-SOIC (0.295", 7.50mm Width) Tube Obsolete Not Verified Clock/Calendar 8B HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd Alarm, Leap Year, RAM - 2V ~ 5.5V - 15µA @ 5V -40°C ~ 85°C (TA) 28-SOIC Surface Mount - -
RA-4565SA B3 PURE SN

RA-4565SA B3 PURE SN

IC RTC CLK/CALENDAR SPI 14SOP

EPSON

3,663
RA-4565SA B3 PURE SN

Datasheet

- 14-SOIC (0.197", 5.00mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar - HH:MM:SS YY-MM-DD-dd Alarm, Leap Year SPI, 4-Wire Serial 1.6V ~ 5.5V - 1.6µA ~ 2µA @ 3V ~ 5V -40°C ~ 125°C 14-SOP Surface Mount AEC-Q200 Automotive
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