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Real Time Clock

Real Time Clocks are in stock with same-day shipping at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many real time clock manufacturers including Analog Devices, Epson, Microchip, Micro Crystal, NXP, Renesas Electronics, STMicroelectronics & more.
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Please view our large selection of real time clocks below.

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Part #

Real Time Clock 1338D-31 REAL TIME CLOCK

1338D-31DVGI8
Renesas Electronics
2,500: $2.12
Non-Stocked Lead-Time 33 Weeks

Mfr. Part No.
1338D-31DVGI8

Mouser Part No
972-1338D-31DVGI8

Renesas Electronics

Real Time Clock 1338D-31 REAL TIME CLOCK

Datasheet

Non-Stocked Lead-Time 33 Weeks

Reel

$2.12

Min.: 2,500
Mult.: 2,500

: 2,500

1338

Reel

Real Time Clock 1339D-31 REAL TIME CLOCK

1339D-31DVGI8
Renesas Electronics
2,500: $2.09
Non-Stocked Lead-Time 33 Weeks

Mfr. Part No.
1339D-31DVGI8

Mouser Part No
972-1339D-31DVGI8

Renesas Electronics

Real Time Clock 1339D-31 REAL TIME CLOCK

Datasheet

Non-Stocked Lead-Time 33 Weeks

Reel

$2.09

Min.: 2,500
Mult.: 2,500

: 2,500

1339

Reel

Real Time Clock Real Time Clock

RX-4571LC:B0 PURE SN
Epson Timing
1: $4.95
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
RX-4571LC:B0 PURE SN

Mouser Part No
732-R4571LC:B0PURESN

Epson Timing

Real Time Clock Real Time Clock

Datasheet

Non-Stocked Lead-Time 17 Weeks

Cut Tape

$4.95

$3.69

$3.43

$2.87

Reel

$2.42

$2.39

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

I2C

No Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock Real Time Clock

RX-4571SA:B0 PURE SN
Epson Timing
1,000: $2.23
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
RX-4571SA:B0 PURE SN

Mouser Part No
732-R4571SA:B0PURESN

Epson Timing

Real Time Clock Real Time Clock

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

$2.23

$2.20

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

: 1,000

Serial 3-Wire

No Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel

Real Time Clock Real Time Clock

RX-8803SA:UB0 PURE SN
Epson Timing
1,000: $2.91
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
RX-8803SA:UB0 PURE SN

Mouser Part No
732-R8803SAUB0PURESN

Epson Timing

Real Time Clock Real Time Clock

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

$2.91

$2.86

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

: 1,000

I2C

No Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel

Real Time Clock RTC I2C-BUS 5+23PPM SON-22 PIN 250TR

RTC-8564NB:B3 ROHS
Epson Timing
1: $14.36
Non-Stocked Lead-Time 16 Weeks
New At Mouser

Mfr. Part No.
RTC-8564NB:B3 ROHS

Mouser Part No
732-RTC8564NBB3ROHS

New At Mouser

Epson Timing

Real Time Clock RTC I2C-BUS 5+23PPM SON-22 PIN 250TR

Datasheet

Non-Stocked Lead-Time 16 Weeks

Cut Tape

$14.36

$11.18

$10.38

$9.51

Reel

$9.10

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

MG7050HAN

Reel, Cut Tape, MouseReel

Real Time Clock RX-4571SA:B0 PURE SN RTC SON 14PIN 5+/-23PPM 1K TR

RX-4571SAB0 PURE SN
Epson Timing
1,000: $2.49
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RX-4571SAB0 PURE SN

Mouser Part No
732-RX-4571SABPURESN

Epson Timing

Real Time Clock RX-4571SA:B0 PURE SN RTC SON 14PIN 5+/-23PPM 1K TR

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$2.49

$2.45

$2.42

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

: 1,000

I2C

YY-MM-DD-dd

HH:MM:SS:hh (12 hr, 24 hr)

SOP-14

No Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

RX-4571SA

SMD/SMT

Reel

Real Time Clock RX-4803SA:UA0 PURE SN RTC +/-3.4PPM-40 85C 1K T/R

RX-4803SAUA0 PURE SN
Epson Timing
1,000: $4.64
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
RX-4803SAUA0 PURE SN

Mouser Part No
732-RX-483SAUAPURESN

Epson Timing

Real Time Clock RX-4803SA:UA0 PURE SN RTC +/-3.4PPM-40 85C 1K T/R

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

$4.64

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

: 1,000

SPI

YY-MM-DD-dd

HH:MM:SS:hh (12 hr, 24 hr)

SOP-14

No Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

RX-4803SA

SMD/SMT

Reel

Real Time Clock 32.768KHz 2.5V-5.5V 8 Bit x 256

RX-5412SF:B3
Epson Timing
250: $7.66
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
RX-5412SF:B3

Mouser Part No
732-RX-5412SF:B3

Epson Timing

Real Time Clock 32.768KHz 2.5V-5.5V 8 Bit x 256

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

$7.66

$7.64

Quote

Min.: 250
Mult.: 250

: 250

Serial 4-Wire

8 B

2.5 V

5.5 V

- 40 C

+ 85 C

RX-5412SF

SMD/SMT

Reel

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

RX-8035LC:AA0
Epson Timing
1,000: $3.48
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
RX-8035LC:AA0

Mouser Part No
732-RX-8035LC:AA0

Epson Timing

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

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

$3.48

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

: 1,000

I2C

VSOJ-12

2.4 V

5.5 V

- 40 C

+ 85 C

RX-8035LC

SMD/SMT

Reel

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

RX-8035LC:AA3
Epson Timing
1: $6.65
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
RX-8035LC:AA3

Mouser Part No
732-RX-8035LC:AA3

Epson Timing

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

Datasheet

Non-Stocked Lead-Time 17 Weeks

Cut Tape

$6.65

$5.02

$4.61

$4.43

Reel

$3.75

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

I2C

VSOJ-12

2.4 V

5.5 V

- 40 C

+ 85 C

RX-8035LC

SMD/SMT

Reel, Cut Tape, MouseReel

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

RX-8035LC:B0
Epson Timing
1,000: $3.39
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
RX-8035LC:B0

Mouser Part No
732-RX-8035LC:B0

Epson Timing

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

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

$3.39

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

: 1,000

I2C

VSOJ-12

2.4 V

5.5 V

- 40 C

+ 85 C

RX-8035LC

SMD/SMT

Reel

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

RX-8035SA:AA0
Epson Timing
1,000: $2.75
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
RX-8035SA:AA0

Mouser Part No
732-RX-8035SA:AA0

Epson Timing

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

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

$2.75

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

: 1,000

I2C

SOP-14

2.4 V

5.5 V

- 40 C

+ 85 C

RX-8035SA

SMD/SMT

Reel

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

RX-8035SA:AA3
Epson Timing
1: $5.45
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

$5.45

$4.07

$3.73

$3.54

Reel

$2.99

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 3.0Volt -40 to 85C I2C BUS

RX-8035SA:B0
Epson Timing
1,000: $2.45
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
RX-8035SA:B0

Mouser Part No
732-RX-8035SA:B0

Epson Timing

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

Datasheet

Non-Stocked Lead-Time 20 Weeks

Reel

$2.45

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

: 1,000

I2C

SOP-14

2.4 V

5.5 V

- 40 C

+ 85 C

RX-8035SA

SMD/SMT

Reel

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

RX-8571SA:B3 PURE SN
Epson Timing
1: $9.15
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

$9.15

$7.03

$6.50

$5.92

Reel

$5.56

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-8803LC:UA0 PURE SN I2C-BUS RTC +/-3.4PPM-40 85C VSOJ-12 PIN 1K TR

RX-8803LCUA0 PURE SN
Epson Timing
1,000: $6.19
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RX-8803LCUA0 PURE SN

Mouser Part No
732-RX-883LCUAPURESN

Epson Timing

Real Time Clock RX-8803LC:UA0 PURE SN I2C-BUS RTC +/-3.4PPM-40 85C VSOJ-12 PIN 1K TR

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$6.19

$6.08

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

: 1,000

I2C

YY-MM-DD-dd

HH:MM:SS:hh (12 hr, 24 hr)

VSOJ-12

No Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

RX-8803LC

Reel

Real Time Clock RX-4035SA:AAB PURE SN REAL TIME CLOCK 5+/-5PPM BULK - CUT TAPE

RX-4035SAAAB PURE SN
Epson Timing
1: $12.72
Non-Stocked Lead-Time 16 Weeks
New At Mouser

Mfr. Part No.
RX-4035SAAAB PURE SN

Mouser Part No
732-RX4035AAABPUREN

New At Mouser

Epson Timing

Real Time Clock RX-4035SA:AAB PURE SN REAL TIME CLOCK 5+/-5PPM BULK - CUT TAPE

Datasheet

Non-Stocked Lead-Time 16 Weeks

$12.72

$9.85

$9.13

$8.35

View

Min.: 1
Mult.: 1

RX-4035SA

Bulk

Real Time Clock RX-4035SA:AC0 PURE SN REAL TIME CLOCK 0+/-5PPM 1K T/R

RX-4035SAAC0 PURE SN
Epson Timing
1,000: $3.45
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RX-4035SAAC0 PURE SN

Mouser Part No
732-RX4035AAC0PUREN

Epson Timing

Real Time Clock RX-4035SA:AC0 PURE SN REAL TIME CLOCK 0+/-5PPM 1K T/R

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$3.45

$3.22

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

: 1,000

RX-4035SA

Reel

Real Time Clock RX-4035SA:B0 PURE SN REAL TIME CLOCK 5+/-23PPM (SOP 14 PIN) 1K TR

RX-4035SAB0 PURE SN
Epson Timing
1,000: $3.60
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RX-4035SAB0 PURE SN

Mouser Part No
732-RX4035SAB0PURESN

Epson Timing

Real Time Clock RX-4035SA:B0 PURE SN REAL TIME CLOCK 5+/-23PPM (SOP 14 PIN) 1K TR

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$3.60

$3.37

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

: 1,000

RX-4035SA

Reel

Real Time Clock RX-4035SA:B PURE SN REAL TIME CLOCK 5+/-23PPM STICK

RX-4035SAB PURE SN
Epson Timing
1: $12.13
Non-Stocked Lead-Time 16 Weeks
New At Mouser

Mfr. Part No.
RX-4035SAB PURE SN

Mouser Part No
732-RX4035SABPURESN

New At Mouser

Epson Timing

Real Time Clock RX-4035SA:B PURE SN REAL TIME CLOCK 5+/-23PPM STICK

Datasheet

Non-Stocked Lead-Time 16 Weeks

$12.13

$9.40

$8.72

$7.96

View

Min.: 1
Mult.: 1

RX-4035SA

Tube

Real Time Clock RX-4045NB:AA0 PURE SN RTC 5+/-5PPM 1K T/R

RX-4045NBAA0 PURE SN
Epson Timing
1,000: $3.81
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RX-4045NBAA0 PURE SN

Mouser Part No
732-RX4045NBAA0PUREN

Epson Timing

Real Time Clock RX-4045NB:AA0 PURE SN RTC 5+/-5PPM 1K T/R

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$3.81

$3.55

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

: 1,000

RX-4035SA

Reel

Real Time Clock RX4111CE:AB REAL TIME CLOCK SPI-BUS 3.0V 11.5PPM BULK

RX4111CE AB
Epson Timing
1: $6.43
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RX4111CE AB

Mouser Part No
732-RX4111CEAB

Epson Timing

Real Time Clock RX4111CE:AB REAL TIME CLOCK SPI-BUS 3.0V 11.5PPM BULK

Datasheet

Non-Stocked Lead-Time 16 Weeks

$6.43

$4.80

$4.05

$3.98

View

Min.: 1
Mult.: 1

RX4111CE

Bulk

Real Time Clock RX4111CE:BB REAL TIME CLOCK SPI-BUS 3.0V 23PPM BULK

RX4111CE BB
Epson Timing
1: $5.29
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RX4111CE BB

Mouser Part No
732-RX4111CEBB

Epson Timing

Real Time Clock RX4111CE:BB REAL TIME CLOCK SPI-BUS 3.0V 23PPM BULK

Datasheet

Non-Stocked Lead-Time 16 Weeks

$5.29

$3.96

$3.37

$3.26

View

Min.: 1
Mult.: 1

RX4111CE

Bulk

Real Time Clock RX-4571NB:B0 PURE SN RTC SON 22PIN 5+/-23PPM 1K TR

RX-4571NBB0 PURE SN
Epson Timing
1,000: $2.45
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RX-4571NBB0 PURE SN

Mouser Part No
732-RX4571NBB0PURESN

Epson Timing

Real Time Clock RX-4571NB:B0 PURE SN RTC SON 22PIN 5+/-23PPM 1K TR

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$2.45

$2.37

$2.33

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

: 1,000

RX-4571LC

Reel

Real Time Clock

Customer Service Office

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2 B
3 B
4 B
7 B
8 B
10 B
12 B
16 B
20 B
31 B
32 B
56 B
64 B
96 B
113 B
114 B
128 B
160 B
236 B
242 B

3.2 mm x 2.5 mm x 1 mm
DFN-16
DFN-20
DFN2626-10
DFN-8
DIP-16
DIP-8
EDIP-24
EDIP-28
EDIP-32
HWSON-8
LGA-10
MSOP-10
MSOP-8
PCDIP-24
PCDIP-28
PDIP-16
PDIP-24
PDIP-28
PDIP-8

600 mV
750 mV
900 mV
1 V
1.1 V
1.2 V
1.25 V
1.3 V
1.4 V
1.5 V
1.6 V
1.7 V
1.71 V
1.8 V
2 V
2.2 V
2.3 V
2.38 V
2.4 V
2.5 V

1338
1339
1337AGD
AB-RTC-TA-32.768kHz-2
AB-RTC-TC-32.768kHz-2
AB-RTC-TH-32.768kHz-2
AB-RTC-XB-32.768kHz-2
AB-RTC-XL
AB-RTC-XLA
AB-RTC-XP-32.768kHz-2
AB-RTC-XPA-32.768kHz-2
AB-RTCMC
AB08x5
AB18x5
Artasie I2C
Artasie I2C w/ Power Management
Artasie SPI
Artasie SPI w/ Power Management
BQ32000
BQ32002