Real Time Clock – Mouser Hong Kong

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RX-8571SA/LC Real-Time Clock Modules

Epson Timing RX-8571SA/LC Real-Time Clock Modules offer a 1.6V to 5.5V operating voltage range and 220nA typical backup current. RX-8571SA/LA modules feature a built-in frequency adjusted 32.7kHz crystal unit, I²C-Bus interface, and 128-bit user RAM. These modules have numerous functions, including timers, alarms, and full calendar. Epson Timing RX-8571SA/LC Real-Time Clock Modules operate in the -40°C to +85°C temperature range.

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Part #

Real Time Clock 5+/-23PPM RTC 250TR

RX-8571LC:B3 PURE SN
Epson Timing
1: HK$59.76
844In Stock

Mfr. Part No.
RX-8571LC:B3 PURE SN

Mouser Part No
732-RX-8571LCB3

Epson Timing

Real Time Clock 5+/-23PPM RTC 250TR

Learn More

Datasheet

844In Stock

Cut Tape

HK$59.76

HK$46.11

HK$41.43

HK$38.39

Reel

HK$35.10

View

Min.: 1
Mult.: 1

: 250

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

16 B

VSOJ-12

No Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

RX-8571LC

SMD/SMT

Reel, Cut Tape

Real Time Clock RX-8571LC:B0 PURE SN 5+/-23PPM REAL TIME CLOCK

RX-8571LCB0 PURE SN
Epson Timing
1: HK$29.51
544In Stock

Mfr. Part No.
RX-8571LCB0 PURE SN

Mouser Part No
732-RX8571LCB0PURESN

Epson Timing

Real Time Clock RX-8571LC:B0 PURE SN 5+/-23PPM REAL TIME CLOCK

Learn More

Datasheet

544In Stock

Cut Tape

HK$29.51

HK$22.28

HK$20.47

HK$18.41

Reel

HK$14.55

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

16 B

No Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

RX-8571LC

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 3.0Volt -40 to 85C I2C BUS

RX-8035SA:B3 PURE SN
Epson Timing
1: HK$59.18
216In Stock
250Expected 15/12/2026

Mfr. Part No.
RX-8035SA:B3 PURE SN

Mouser Part No
732-RX-8035SA:B3

Epson Timing

Real Time Clock 3.0Volt -40 to 85C I2C BUS

Datasheet

216In Stock

250Expected 15/12/2026

Cut Tape

HK$59.18

HK$45.46

HK$42.00

HK$38.31

Reel

HK$36.41

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SOP-14

Backup Switching

2.4 V

5.5 V

- 40 C

+ 85 C

RX-8035SA

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock I2C-BUS RTC +/-5.0PPM-30 70C SOP-14 PIN 250TR

RX-8803SA:UB3 PURE SN
Epson Timing
1: HK$37.65
1In Stock
1,000Expected 17/8/2026

Mfr. Part No.
RX-8803SA:UB3 PURE SN

Mouser Part No
732-RX-8803SAUB3

Epson Timing

Real Time Clock I2C-BUS RTC +/-5.0PPM-30 70C SOP-14 PIN 250TR

Datasheet

1In Stock

1,000Expected 17/8/2026

Cut Tape

HK$37.65

HK$28.36

HK$26.06

HK$23.51

Reel

HK$23.10

View

Min.: 1
Mult.: 1

: 250

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SOP-14

No Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

RX-8803SA

SMD/SMT

Reel, Cut Tape

Real Time Clock 5+/-23PPM REAL TIME CLOCK 1K TR

RX-8571SA:B0 PURE SN
Epson Timing
1: HK$25.65
212In Stock

Mfr. Part No.
RX-8571SA:B0 PURE SN

Mouser Part No
732-RX8571SAB0PURESN

Epson Timing

Real Time Clock 5+/-23PPM REAL TIME CLOCK 1K TR

Learn More

Datasheet

212In Stock

Cut Tape

HK$25.65

HK$19.73

HK$18.17

HK$16.52

Reel

HK$14.39

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

16 B

No Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

RX-8571SA

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 3.0Volt -40 to 85C I2C BUS

RX-8035SA:AA3
Epson Timing
1: HK$32.96
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
RX-8035SA:AA3

Mouser Part No
732-RX-8035SA:AA3

Epson Timing

Real Time Clock 3.0Volt -40 to 85C I2C BUS

Datasheet

Non-Stocked Lead-Time 20 Weeks

Cut Tape

HK$32.96

HK$24.58

HK$22.52

HK$21.37

Reel

HK$18.08

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

I2C

SOP-14

2.4 V

5.5 V

- 40 C

+ 85 C

RX-8035SA

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock i2C Bus -40C +85C 5 +/-23ppm 14 PIN

RX-8571SA:B3 PURE SN
Epson Timing
1: HK$55.32
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RX-8571SA:B3 PURE SN

Mouser Part No
732-RX-8571SA:B3S

Epson Timing

Real Time Clock i2C Bus -40C +85C 5 +/-23ppm 14 PIN

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

Cut Tape

HK$55.32

HK$42.50

HK$39.29

HK$35.76

Reel

HK$33.62

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

16 B

SOP-14

No Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

RX-8571SA

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock RX-8571NB:B0 PURE SN 5+/-23PPM REAL TIME CLOCK 1K TR

RX-8571NBB0 PURE SN
Epson Timing
1,000: HK$14.80
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RX-8571NBB0 PURE SN

Mouser Part No
732-RX8571NBB0PURESN

Epson Timing

Real Time Clock RX-8571NB:B0 PURE SN 5+/-23PPM REAL TIME CLOCK 1K TR

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

HK$14.80

HK$14.30

HK$14.06

Min.: 1,000
Mult.: 1,000

: 1,000

RX-8571LC

Reel

Real Time Clock RX-8803LC:UC0 PURE SN I2C-BUS RTC +/-5.0PPM-30 70C 1K T/R

RX-8803LCUC0 PURE SN
Epson Timing
1,000: HK$25.81
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RX-8803LCUC0 PURE SN

Mouser Part No
732-RX8803LCUC0PUREN

Epson Timing

Real Time Clock RX-8803LC:UC0 PURE SN I2C-BUS RTC +/-5.0PPM-30 70C 1K T/R

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

HK$25.81

HK$24.08

Min.: 1,000
Mult.: 1,000

: 1,000

RX-8571SA

Reel

Real Time Clock I2C-BUS RTC +/-3.4PPM-40 85C 250 T/R

RX-8803SA:UA3 PURE SN
Epson Timing
250: HK$61.73
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
RX-8803SA:UA3 PURE SN

Mouser Part No
732-X8803SAUA3PURESN

Epson Timing

Real Time Clock I2C-BUS RTC +/-3.4PPM-40 85C 250 T/R

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

HK$61.73

HK$60.66

HK$60.09

Quote

Min.: 250
Mult.: 250

: 250

RX-8803SA

Reel

Real Time Clock I2C-BUS RTC +/-5.0PPM-30 70C SOP-14 PIN 250 T/R

RX-8803SA:UC3 PURE SN
Epson Timing
250: HK$42.50
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
RX-8803SA:UC3 PURE SN

Mouser Part No
732-X8803SAUC3PURESN

Epson Timing

Real Time Clock I2C-BUS RTC +/-5.0PPM-30 70C SOP-14 PIN 250 T/R

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

HK$42.50

HK$42.00

HK$41.59

Quote

Min.: 250
Mult.: 250

: 250

RX-8803SA

Reel

Real Time Clock 5+/-23PPM RTC BULK - CUT TAPE

RX-8571LC:B PURE SN
Epson Timing
1: HK$51.21
Non-Stocked Lead-Time 26 Weeks

Mfr. Part No.
RX-8571LC:B PURE SN

Mouser Part No
732-RX8571LC:BPURESN

Epson Timing

Real Time Clock 5+/-23PPM RTC BULK - CUT TAPE

Learn More

Datasheet

Non-Stocked Lead-Time 26 Weeks

HK$51.21

HK$46.94

HK$39.46

Min.: 1
Mult.: 1

RX-8571LC

Bulk

Real Time Clock RTC +/-3.4PPM-40 85C 250 T/R

RX-4803SA:UA3 PURE SN
Epson Timing
250: HK$66.09
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
RX-4803SA:UA3 PURE SN

Mouser Part No
732-X4803SAUA3PURESN

Epson Timing

Real Time Clock RTC +/-3.4PPM-40 85C 250 T/R

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

HK$66.09

HK$63.87

HK$63.13

Quote

Min.: 250
Mult.: 250

: 250

RX-4803SA

Reel

Real Time Clock RTC +/-5.0PPM-40 85C 250 T/R

RX-4803SA:UB3 PURE SN
Epson Timing
250: HK$42.58
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
RX-4803SA:UB3 PURE SN

Mouser Part No
732-X4803SAUB3PURESN

Epson Timing

Real Time Clock RTC +/-5.0PPM-40 85C 250 T/R

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

HK$42.58

HK$42.17

HK$41.68

Quote

Min.: 250
Mult.: 250

: 250

RX-4803SA

Reel

Real Time Clock REAL TIME CLOCK 0+/-5PPM 250TR

RX-8035SA:AC3 PURE SN
Epson Timing
250: HK$40.03
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
RX-8035SA:AC3 PURE SN

Mouser Part No
732-X8035SAAC3PURESN

Epson Timing

Real Time Clock REAL TIME CLOCK 0+/-5PPM 250TR

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

HK$40.03

HK$38.96

HK$36.25

HK$36.17

Quote

Min.: 250
Mult.: 250

: 250

RX-8035SA

Reel

RX-8571SA/LC Real-Time Clock Modules

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