Real Time Clock – Mouser Canada

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RX8900CE Real-Time Clock Modules

Epson Timing RX8900CE Real-Time Clock Modules offer a 2.5V to 5.5V interface voltage range and I²C-Bus interface type. RX8900CE modules feature a built-in, frequency-adjusted 32.7kHz crystal unit and DTCXO and multiple functions, including an auto power switch, clock output, wakeup timer, alarm, and temperature sensing. Epson Timing RX8900CE Real-Time Clock Modules operate in a -40°C to +85°C temperature range.

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Part #

Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus

RX8900SA UA0 PURE SN
Epson Timing
1: $7.00
952In Stock

Mfr. Part #
RX8900SA UA0 PURE SN

Mouser Part #
732-RX8900SAUA0SN

Epson Timing

Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus

Learn More

Datasheet

952In Stock

Cut Tape

$7.00

$5.31

$4.88

$4.35

Reel

$3.92

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

Backup Switching

2.5 V

5.5 V

- 40 C

+ 85 C

RX8900CE

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus

RX8900CE UA0
Epson Timing
1: $5.72
559In Stock
1,000Expected 2026-09-14

Mfr. Part #
RX8900CE UA0

Mouser Part #
732-RX8900CEUA0

Epson Timing

Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus

Learn More

Datasheet

559In Stock

1,000Expected 2026-09-14

Cut Tape

$5.72

$4.32

$3.97

$3.59

View

Reel

$3.24

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

Backup Switching

2.5 V

5.5 V

- 40 C

+ 85 C

RX8900CE

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus

RX8900CE UA3
Epson Timing
1: $14.08
246In Stock
750Expected 2026-06-24

Mfr. Part #
RX8900CE UA3

Mouser Part #
732-RX8900CEUA3

Epson Timing

Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus

Learn More

Datasheet

Product Comments

246In Stock

750Expected 2026-06-24

Cut Tape

$14.08

$10.97

$10.18

$9.30

Reel

$8.84

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

Backup Switching

2.5 V

5.5 V

- 40 C

+ 85 C

RX8900CE

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 32.768kHz +/-5ppm -40C +85C

RX8900CE:UB3
Epson Timing
1: $8.24
172In Stock

Mfr. Part #
RX8900CE:UB3

Mouser Part #
732-RX8900CE:UB3

Epson Timing

Real Time Clock 32.768kHz +/-5ppm -40C +85C

Learn More

Datasheet

172In Stock

Cut Tape

$8.24

$6.29

$5.80

$4.85

Reel

$4.44

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

Backup Switching

2.5 V

5.5 V

- 40 C

+ 85 C

RX8900CE

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN 1K T/R

RX8900CE:UB0
Epson Timing
1: $4.06
2,000Expected 2026-06-18

Mfr. Part #
RX8900CE:UB0

Mouser Part #
732-RX8900CE:UB0

Epson Timing

Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN 1K T/R

Learn More

Datasheet

2,000Expected 2026-06-18

Cut Tape

$4.06

$3.02

$2.76

$2.48

Reel

$2.15

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

Backup Switching

2.5 V

5.5 V

- 40 C

+ 85 C

RX8900CE

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN 2K T/R

RX8900CE:UB6
Epson Timing
1: $4.06
2,062Expected 2026-10-12

Mfr. Part #
RX8900CE:UB6

Mouser Part #
732-RX8900CE:UB6

Epson Timing

Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN 2K T/R

Learn More

Datasheet

2,062Expected 2026-10-12

Cut Tape

$4.06

$3.02

$2.76

$2.48

Reel

$2.12

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

Backup Switching

2.5 V

5.5 V

- 40 C

+ 85 C

RX8900CE

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock I2C-BUS RTC +/-3.4PPM-40 85C 10 PIN BULK

RX8900CE:UAB
Epson Timing
1: $12.57
Non-Stocked Lead-Time 16 Weeks

Mfr. Part #
RX8900CE:UAB

Mouser Part #
732-RX8900CE:UAB

Epson Timing

Real Time Clock I2C-BUS RTC +/-3.4PPM-40 85C 10 PIN BULK

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

$12.57

$10.93

$9.33

$9.10

View

Min.: 1
Mult.: 1

RX8900CE

Bulk

Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN BULK

RX8900CE:UBB
Epson Timing
1: $8.09
Non-Stocked Lead-Time 16 Weeks

Mfr. Part #
RX8900CE:UBB

Mouser Part #
732-RX8900CE:UBB

Epson Timing

Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN BULK

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

$8.09

$6.25

$5.31

$5.13

View

Min.: 1
Mult.: 1

RX8900CE

Bulk

Real Time Clock RX8900CE:UA6 I2C-BUS RTC +/-3.4PPM-40 85C 10 PIN 2K TR

RX8900CEUA6
Epson Timing
2,000: $3.04
Non-Stocked Lead-Time 16 Weeks

Mfr. Part #
RX8900CEUA6

Mouser Part #
732-RX8900CEUA6

Epson Timing

Real Time Clock RX8900CE:UA6 I2C-BUS RTC +/-3.4PPM-40 85C 10 PIN 2K TR

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$3.04

Min.: 2,000
Mult.: 2,000

: 2,000

RX8900CE

Reel

Real Time Clock RX8900CE:UAX I2C-BUS RTC +/-3.4PPM-40 85C 10 PIN ANY T/R

RX8900CEUAX
Epson Timing
1: $13.97
Non-Stocked Lead-Time 17 Weeks

Mfr. Part #
RX8900CEUAX

Mouser Part #
732-RX8900CEUAX

Epson Timing

Real Time Clock RX8900CE:UAX I2C-BUS RTC +/-3.4PPM-40 85C 10 PIN ANY T/R

Learn More

Datasheet

Non-Stocked Lead-Time 17 Weeks

Cut Tape

$13.97

$10.87

$10.09

$9.24

View

Min.: 1
Mult.: 1

Backup Switching

2.5 V

5.5 V

- 40 C

+ 85 C

RX8900CE

SMD/SMT

Reel

Real Time Clock RX8900CE:UC3 I2C-BUS RTC +/-5.0PPM-30 70C 10 PIN 250 T/R

RX8900CEUC3
Epson Timing
250: $4.82
Non-Stocked Lead-Time 16 Weeks

Mfr. Part #
RX8900CEUC3

Mouser Part #
732-RX8900CEUC3

Epson Timing

Real Time Clock RX8900CE:UC3 I2C-BUS RTC +/-5.0PPM-30 70C 10 PIN 250 T/R

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$4.82

$4.77

$4.74

$4.71

Min.: 250
Mult.: 250

: 250

RX8900CE

Reel

Real Time Clock RX8900CE:UCB I2C-BUS RTC +/-5.0PPM-30 70C BULK-CUT TAPE

RX8900CEUCB
Epson Timing
1: $8.09
Non-Stocked Lead-Time 16 Weeks

Mfr. Part #
RX8900CEUCB

Mouser Part #
732-RX8900CEUCB

Epson Timing

Real Time Clock RX8900CE:UCB I2C-BUS RTC +/-5.0PPM-30 70C BULK-CUT TAPE

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

$8.09

$6.25

$5.36

$5.21

View

Min.: 1
Mult.: 1

RX8900CE

Bulk

RX8900CE Real-Time Clock Modules

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