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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
PT7C4302ZEE

PT7C4302ZEE

IC RTC CLK/CALENDAR SER 8TDFN

Diodes Incorporated

3,697
PT7C4302ZEE

Datasheet

- 8-WFDFN Exposed Pad Bulk Obsolete Not Verified Clock/Calendar 31B HH:MM:SS (12/24 hr) YY-MM-DD-dd Leap Year, NVSRAM, Square Wave Output, Trickle-Charger 3-Wire Serial 1.2V ~ 5.5V 1.5V ~ 5.5V 25.3µA ~ 81µA @ 2V ~ 5V -40°C ~ 85°C (TA) 8-TDFN (2x3) Surface Mount - -
PT7C4372AZEE

PT7C4372AZEE

IC RTC CLK/CALENDAR I2C 8TDFN

Diodes Incorporated

3,763
PT7C4372AZEE

Datasheet

- 8-WFDFN Exposed Pad Bulk Obsolete Not Verified Clock/Calendar - HH:MM:SS (12/24 hr) YY-MM-DD-dd Alarm, Leap Year I2C, 2-Wire Serial 1.8V ~ 6V - 0.8µA @ 3V -40°C ~ 85°C (TA) 8-TDFN (2x3) Surface Mount - -
PT7C4563ZEE

PT7C4563ZEE

IC RTC CLK/CALENDAR I2C 8TDFN

Diodes Incorporated

2,723
PT7C4563ZEE

Datasheet

- 8-WFDFN Exposed Pad Tube Obsolete Not Verified Clock/Calendar - HH:MM:SS (24 hr) YY-MM-DD-dd Alarm, Leap Year, Square Wave Output I2C, 2-Wire Serial 1.3V ~ 5.5V - 0.65µA ~ 0.85µA @ 3V ~ 5V -40°C ~ 85°C (TA) 8-TDFN (2x3) Surface Mount - -
RA-4574SA:B PURE SN

RA-4574SA:B PURE SN

IC RTC CLK/CALENDAR SER 14SOP

EPSON

1,326
RA-4574SA:B PURE SN

Datasheet

RA-4574SA 14-SOIC (0.197", 5.00mm Width) Tube 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 - -
RA-4574SA:B0 PURE SN

RA-4574SA:B0 PURE SN

IC RTC CLK/CALENDAR SER 14SOP

EPSON

1,461
RA-4574SA:B0 PURE SN

Datasheet

RA-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 - -
RA-8565SA:B PURE SN

RA-8565SA:B PURE SN

IC RTC CLK/CALENDAR I2C 14SOP

EPSON

2,328
RA-8565SA:B PURE SN

Datasheet

RA-8565SA 14-SOIC (0.197", 5.00mm Width) Tube Obsolete Not Verified Clock/Calendar - HH:MM:SS YY-MM-DD-dd Alarm I2C 1.8V ~ 5.5V - 1µA ~ 1.8µA @ 3V ~ 5V -40°C ~ 125°C 14-SOP Surface Mount - -
RA-8565SA:B0 PURE SN

RA-8565SA:B0 PURE SN

IC RTC CLK/CALENDAR I2C 14SOP

EPSON

2,258
RA-8565SA:B0 PURE SN

Datasheet

RA-8565SA 14-SOIC (0.197", 5.00mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar - HH:MM:SS YY-MM-DD-dd Alarm I2C 1.8V ~ 5.5V - 1µA ~ 1.8µA @ 3V ~ 5V -40°C ~ 125°C 14-SOP Surface Mount - -
RA-8565SA:B3 PURE SN

RA-8565SA:B3 PURE SN

IC RTC CLK/CALENDAR I2C 14SOP

EPSON

3,304
RA-8565SA:B3 PURE SN

Datasheet

RA-8565SA 14-SOIC (0.197", 5.00mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar - HH:MM:SS YY-MM-DD-dd Alarm I2C 1.8V ~ 5.5V - 1µA ~ 1.8µA @ 3V ~ 5V -40°C ~ 125°C 14-SOP Surface Mount - -
RTC-4543SA:A ROHS

RTC-4543SA:A ROHS

IC RTC CLK/CALENDAR SER 14SOP

EPSON

4,749
RTC-4543SA:A ROHS

Datasheet

RTC-4543SA 14-SOIC (0.197", 5.00mm Width) Bulk Obsolete Not Verified Clock/Calendar - HH:MM:SS (24 hr) YY-MM-DD-dd Leap Year 3-Wire Serial 2.5V ~ 5.5V - 1µA ~ 3µA @ 2V ~ 5V -40°C ~ 85°C 14-SOP Surface Mount - -
RTC-4543SA:B:PURE SN

RTC-4543SA:B:PURE SN

IC RTC CLK/CALENDAR SER 14SOP

EPSON

4,835
RTC-4543SA:B:PURE SN

Datasheet

RTC-4543SA 14-SOIC (0.197", 5.00mm Width) Tube Obsolete Not Verified Clock/Calendar - HH:MM:SS (24 hr) YY-MM-DD-dd Leap Year 3-Wire Serial 2.5V ~ 5.5V - 1µA ~ 3µA @ 2V ~ 5V -40°C ~ 85°C 14-SOP Surface Mount - -
RTC-4543SA:B ROHS

RTC-4543SA:B ROHS

IC RTC CLK/CALENDAR SER 14SOP

EPSON

4,926
RTC-4543SA:B ROHS

Datasheet

RTC-4543SA 14-SOIC (0.197", 5.00mm Width) Tube Obsolete Not Verified Clock/Calendar - HH:MM:SS (24 hr) YY-MM-DD-dd Leap Year 3-Wire Serial 2.5V ~ 5.5V - 1µA ~ 3µA @ 2V ~ 5V -40°C ~ 85°C 14-SOP Surface Mount - -
RTC-4543SA:B3:PURE SN

RTC-4543SA:B3:PURE SN

IC RTC CLK/CALENDAR SER 14SOP

EPSON

1,124
RTC-4543SA:B3:PURE SN

Datasheet

RTC-4543SA 14-SOIC (0.197", 5.00mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar - HH:MM:SS (24 hr) YY-MM-DD-dd Leap Year 3-Wire Serial 2.5V ~ 5.5V - 1µA ~ 3µA @ 2V ~ 5V -40°C ~ 85°C 14-SOP Surface Mount - -
RTC-4574JE:B ROHS

RTC-4574JE:B ROHS

IC RTC CLK/CALENDAR SER 20VSOJ

EPSON

1,846
RTC-4574JE:B ROHS

Datasheet

RTC-4574JE 20-LSSOJ (0.213", 5.40mm Width) Strip Obsolete Not Verified Clock/Calendar - - - Alarm 3-Wire Serial 1.6V ~ 5.5V - 1µA ~ 2µA @ 3V ~ 5V -40°C ~ 85°C 20-VSOJ Surface Mount - -
RTC-4574NB:B ROHS

RTC-4574NB:B ROHS

IC RTC CLK/CALENDAR SER 22SON

EPSON

4,858
RTC-4574NB:B ROHS

Datasheet

- 22-LFDFN Strip Obsolete Not Verified Clock/Calendar - - - Alarm 3-Wire Serial 1.6V ~ 5.5V - 1µA ~ 2µA @ 3V ~ 5V -40°C ~ 85°C 22-SON (6.3x4.8) Surface Mount - -
RTC-4574SA:B:PURE SN

RTC-4574SA:B:PURE SN

IC RTC CLK/CALENDAR SER 14SOP

EPSON

1,751
RTC-4574SA:B:PURE SN

Datasheet

RTC-4574SA 14-SOIC (0.197", 5.00mm Width) Tube 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 - -
RTC-4574SA:B3:PURE SN

RTC-4574SA:B3:PURE SN

IC RTC CLK/CALENDAR SER 14SOP

EPSON

1,182
RTC-4574SA:B3: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 - -
RTC-4701JE:B ROHS

RTC-4701JE:B ROHS

IC RTC CLK/CALENDAR SER 20VSOJ

EPSON

3,659
RTC-4701JE:B ROHS

Datasheet

- 20-LSSOJ (0.213", 5.40mm Width) Strip Obsolete Not Verified Clock/Calendar - - - Alarm 3-Wire Serial 1.6V ~ 5.5V - - -40°C ~ 85°C 20-VSOJ Surface Mount - -
RTC-4701NB:B ROHS

RTC-4701NB:B ROHS

IC RTC CLK/CALENDAR SER 22SON

EPSON

1,751
RTC-4701NB:B ROHS

Datasheet

- 22-LFDFN Strip Obsolete Not Verified Clock/Calendar - - - Alarm 3-Wire Serial 1.6V ~ 5.5V - - -40°C ~ 85°C 22-SON (6.3x4.8) Surface Mount - -
RTC-72421A: PURE SN

RTC-72421A: PURE SN

IC RTC CLK/CALENDAR PAR 18DIP

EPSON

4,775
RTC-72421A: PURE SN

Datasheet

RTC-72421 18-DIP (0.300", 7.62mm) Bulk Obsolete Not Verified Clock/Calendar - HH:MM:SS (12/24 hr) - Leap Year Parallel 4.5V ~ 5.5V - 5µA ~ 10µA @ 2V ~ 5V -10°C ~ 70°C 18-DIP Through Hole - -
RTC-72421B: PURE SN

RTC-72421B: PURE SN

IC RTC CLK/CALENDAR PAR 18DIP

EPSON

1,622
RTC-72421B: PURE SN

Datasheet

RTC-72421 18-DIP (0.300", 7.62mm) Bulk Obsolete Not Verified Clock/Calendar - HH:MM:SS (12/24 hr) - Leap Year Parallel 4.5V ~ 5.5V - 5µA ~ 10µA @ 2V ~ 5V -10°C ~ 70°C 18-DIP Through Hole - -
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