Real Time Clocks：

Compare Mfr Part # Quantity Available Series Package Product Status Programmable Type Features Memory Size Time Format Date Format Interface Voltage - Supply Voltage - Supply, Battery Current - Timekeeping (Max) Operating Temperature Mounting Type Package / Case Supplier Device Package

PCA2125TS/1,112 IC RTC CLK/CALENDAR SPI 14TSSOP

50

-

Tube

Obsolete

Not Verified

Clock/Calendar

Alarm, Leap Year, Square Wave Output, Watchdog Timer

-

HH:MM:SS (12/24 hr)

YY-MM-DD-dd

SPI

1.6V ~ 5.5V

-

1.8µA @ 2V ~ 5V

-40°C ~ 125°C

Surface Mount

14-TSSOP (0.173", 4.40mm Width)

14-TSSOP

PCA2125TS/1,118 IC RTC CLK/CALENDAR SPI 14TSSOP

50

-

Tape & Reel (TR)

Obsolete

Not Verified

Clock/Calendar

Alarm, Leap Year, Square Wave Output, Watchdog Timer

-

HH:MM:SS (12/24 hr)

YY-MM-DD-dd

SPI

1.6V ~ 5.5V

-

1.8µA @ 2V ~ 5V

-40°C ~ 125°C

Surface Mount

14-TSSOP (0.173", 4.40mm Width)

14-TSSOP

PCF2129AT/1,512 IC RTC CLOCK/CALENDAR I2C 20SO

50

-

Tube

Obsolete

Not Verified

Clock/Calendar

Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer

-

HH:MM:SS (12/24 hr)

YY-MM-DD-dd

I²C, 2-Wire Serial

1.8V ~ 4.2V

1.8V ~ 4.2V

1.5µA @ 3.3V

-40°C ~ 85°C

Surface Mount

20-SOIC (0.295", 7.50mm Width)

20-SO

PCF2127AT/1,512 IC RTC CLOCK/CALENDAR I2C 20SO

50

-

Tube

Obsolete

Not Verified

Clock/Calendar

Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer

512B

HH:MM:SS (12/24 hr)

YY-MM-DD-dd

I²C, 2-Wire Serial

1.8V ~ 4.2V

1.8V ~ 4.2V

1.5µA @ 3.3V

-40°C ~ 85°C

Surface Mount

20-SOIC (0.295", 7.50mm Width)

20-SO

PCF2123BS/1,512 IC RTC CLK/CALENDAR SPI 16HVQFN

50

-

Tube,Tube

Discontinued at Digi-Key

Not Verified

Clock/Calendar

Alarm, Leap Year, Square Wave Output, Watchdog Timer

-

HH:MM:SS (12/24 hr)

YY-MM-DD-dd

SPI

1.6V ~ 5.5V

-

0.33µA ~ 0.38µA @ 2V ~ 5V

-40°C ~ 85°C

Surface Mount

16-VFQFN Exposed Pad

16-HVQFN (3x3)

PCF2129AT/1,518 IC RTC CLOCK/CALENDAR I2C 20SO

50

-

Tape & Reel (TR)

Obsolete

Not Verified

Clock/Calendar

Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer

-

HH:MM:SS (12/24 hr)

YY-MM-DD-dd

I²C, 2-Wire Serial

1.8V ~ 4.2V

1.8V ~ 4.2V

1.5µA @ 3.3V

-40°C ~ 85°C

Surface Mount

20-SOIC (0.295", 7.50mm Width)

20-SO

PCF2127AT/1,518 IC RTC CLOCK/CALENDAR I2C 20SO

50

-

Tape & Reel (TR)

Obsolete

Not Verified

Clock/Calendar

Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer

512B

HH:MM:SS (12/24 hr)

YY-MM-DD-dd

I²C, 2-Wire Serial

1.8V ~ 4.2V

1.8V ~ 4.2V

1.5µA @ 3.3V

-40°C ~ 85°C

Surface Mount

20-SOIC (0.295", 7.50mm Width)

20-SO

PCF8564ACX9/1,005 IC RTC CLOCK/CALENDAR I2C DIE

50

-

Bulk

Obsolete

Not Verified

Clock/Calendar

Alarm, Leap Year, Square Wave Output, Watchdog Timer

-

HH:MM:SS (24 hr)

YY-MM-DD-dd

I²C, 2-Wire Serial

1V ~ 5.5V

-

0.6µA ~ 0.75µA @ 2V ~ 5V

-40°C ~ 85°C

Surface Mount

Die

Die

PCF8523TS/1,112 IC RTC CLK/CALENDAR I2C 14TSSOP

50

-

Tube,Tube

Obsolete

Not Verified

Clock/Calendar

Alarm, Leap Year, Watchdog Timer

-

HH:MM:SS (12/24 hr)

YY-MM-DD-dd

I²C, 2-Wire Serial

1.6V ~ 5.5V

1.8V ~ 5.5V

0.5µA @ 2V ~ 5V

-40°C ~ 85°C

Surface Mount

14-TSSOP (0.173", 4.40mm Width)

14-TSSOP

PCF2123U/12AA/1,00 IC RTC/CALENDAR SPI UNCASED

50

*

Bulk

Obsolete

Not Verified

-

-

-

-

-

-

-

-

-

-

-

-

-

PCF2123U/5GA/1,015 IC RTC/CALENDAR SPI UNCASED

50

*

Bulk

Obsolete

Not Verified

-

-

-

-

-

-

-

-

-

-

-

-

-

PCF8523U/12AA/1,00 IC RTC/CALENDAR UNCASED DIE FFC

50

*

Bulk

Obsolete

Not Verified

-

-

-

-

-

-

-

-

-

-

-

-

-

PCF8564AU/5BD/1,01 IC RTC/CALENDAR UNCASED DIE

50

*

Bulk

Obsolete

Not Verified

-

-

-

-

-

-

-

-

-

-

-

-

-

PCA8802CX8/B/1,027 IC RTC BINARY COUNTER I2C DIE

50

-

Tape & Reel (TR)

Obsolete

Not Verified

Binary Counter

Square Wave Output, Unique ID

-

Binary

Binary

I²C, 2-Wire Serial

1.6V ~ 5.5V

-

0.4µA @ 1.6V ~ 5.5V

-40°C ~ 85°C

-

Die

Die

PCA8802U/2AA/1,026 IC RTC BINARY COUNTER I2C DIE

50

-

Tray

Obsolete

Not Verified

Binary Counter

Square Wave Output, Unique ID

-

Binary

Binary

I²C, 2-Wire Serial

1.6V ~ 5.5V

-

0.4µA @ 1.6V ~ 5.5V

-40°C ~ 85°C

-

Die

Die

  • PCA2125TS/1,112

    IC RTC CLK/CALENDAR SPI 14TSSOP

    Details

  • PCA2125TS/1,118

    IC RTC CLK/CALENDAR SPI 14TSSOP

    Details

  • PCF2129AT/1,512

    IC RTC CLOCK/CALENDAR I2C 20SO

    Details

  • PCF2127AT/1,512

    IC RTC CLOCK/CALENDAR I2C 20SO

    Details

  • PCF2123BS/1,512

    IC RTC CLK/CALENDAR SPI 16HVQFN

    Details

  • PCF2129AT/1,518

    IC RTC CLOCK/CALENDAR I2C 20SO

    Details

  • PCF2127AT/1,518

    IC RTC CLOCK/CALENDAR I2C 20SO

    Details

  • PCF8564ACX9/1,005

    IC RTC CLOCK/CALENDAR I2C DIE

    Details

  • PCF8523TS/1,112

    IC RTC CLK/CALENDAR I2C 14TSSOP

    Details

  • PCF2123U/12AA/1,00

    IC RTC/CALENDAR SPI UNCASED

    Details

  • PCF2123U/5GA/1,015

    IC RTC/CALENDAR SPI UNCASED

    Details

  • PCF8523U/12AA/1,00

    IC RTC/CALENDAR UNCASED DIE FFC

    Details

  • PCF8564AU/5BD/1,01

    IC RTC/CALENDAR UNCASED DIE

    Details

  • PCA8802CX8/B/1,027

    IC RTC BINARY COUNTER I2C DIE

    Details

  • PCA8802U/2AA/1,026

    IC RTC BINARY COUNTER I2C DIE

    Details

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