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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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Results: 602

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Part #

Real Time Clock

S-35390AH-T8T2U
ABLIC
4,000: £0.766
Non-Stocked Lead-Time 24 Weeks
Factory Special Order

Mfr. Part No.
S-35390AH-T8T2U

Mouser Part No
628-S-35390AH-T8T2U

Factory Special Order

ABLIC

Real Time Clock

Datasheet

Non-Stocked Lead-Time 24 Weeks

Reel

£0.766

Min.: 4,000
Mult.: 4,000

: 4,000

S-35390AH

Reel

Real Time Clock

RV-3129-C3-32.768k-OPTION-A-TB-QA
Micro Crystal
1,000: £2.45
Non-Stocked

Mfr. Part No.
RV-3129-C3-32.768k-OPTION-A-TB-QA

Mouser Part No
428-203618-MG1

Micro Crystal

Real Time Clock

Datasheet

Non-Stocked

£2.45

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

Real Time Clock

RV-3129-C3-32.768k-OPTION-B-TB-QA
Micro Crystal
1,000: £2.04
Non-Stocked

Mfr. Part No.
RV-3129-C3-32.768k-OPTION-B-TB-QA

Mouser Part No
428-203639-MG1

Micro Crystal

Real Time Clock

Datasheet

Non-Stocked

£2.04

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

Real Time Clock

RV-3149-C3-32.768k-OPTION-A-TB-QA
Micro Crystal
1,000: £2.45
Non-Stocked

Mfr. Part No.
RV-3149-C3-32.768k-OPTION-A-TB-QA

Mouser Part No
428-203641-MG1

Micro Crystal

Real Time Clock

Datasheet

Non-Stocked

£2.45

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

Real Time Clock

RV-3149-C3-32.768k-OPTION-B-TB-QA
Micro Crystal
1,000: £2.04
Non-Stocked

Mfr. Part No.
RV-3149-C3-32.768k-OPTION-B-TB-QA

Mouser Part No
428-203684-MG1

Micro Crystal

Real Time Clock

Datasheet

Non-Stocked

£2.04

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

Real Time Clock Real Time Clock SEAM3225 T&R 3K

RT313242N3
Diodes Incorporated
3,000: £1.19
Non-Stocked Lead-Time 32 Weeks
New Product

Mfr. Part No.
RT313242N3

Mouser Part No
621-RT313242N3

New Product

Diodes Incorporated

Real Time Clock Real Time Clock SEAM3225 T&R 3K

Datasheet

Non-Stocked Lead-Time 32 Weeks

Reel

£1.19

Min.: 3,000
Mult.: 3,000

: 3,000

I2C

YYYY-MM-DD

HH:MM:SS (24 hr)

SMD-10

1.3 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel

Real Time Clock Real Time Clock SEAM3225 T&R 3K

RT313242Q3
Diodes Incorporated
3,000: £1.28
Non-Stocked Lead-Time 32 Weeks
New Product

Mfr. Part No.
RT313242Q3

Mouser Part No
621-RT313242Q3

New Product

Diodes Incorporated

Real Time Clock Real Time Clock SEAM3225 T&R 3K

Datasheet

Non-Stocked Lead-Time 32 Weeks

Reel

£1.28

Min.: 3,000
Mult.: 3,000

: 3,000

I2C

YYYY-MM-DD

HH:MM:SS (24 hr)

SMD-10

1.3 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel

Real Time Clock Real Time Clock SEAM3225 T&R 3K

RT313243N3
Diodes Incorporated
3,000: £1.03
Non-Stocked Lead-Time 32 Weeks
New Product

Mfr. Part No.
RT313243N3

Mouser Part No
621-RT313243N3

New Product

Diodes Incorporated

Real Time Clock Real Time Clock SEAM3225 T&R 3K

Datasheet

Non-Stocked Lead-Time 32 Weeks

Reel

£1.03

Min.: 3,000
Mult.: 3,000

: 3,000

I2C

YYYY-MM-DD

HH:MM:SS (24 hr)

SMD-10

1.3 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel

Real Time Clock Real Time Clock SEAM3225 T&R 3K

RT313243Q1
Diodes Incorporated
3,000: £1.48
Non-Stocked Lead-Time 32 Weeks
New Product

Mfr. Part No.
RT313243Q1

Mouser Part No
621-RT313243Q1

New Product

Diodes Incorporated

Real Time Clock Real Time Clock SEAM3225 T&R 3K

Datasheet

Non-Stocked Lead-Time 32 Weeks

Reel

£1.48

Min.: 3,000
Mult.: 3,000

: 3,000

I2C

YYYY-MM-DD

HH:MM:SS (24 hr)

SMD-10

1.3 V

5.5 V

- 40 C

+ 125 C

SMD/SMT

Reel

Real Time Clock Real Time Clock SEAM3225 T&R 3K

RT313243Q2
Diodes Incorporated
3,000: £1.38
Non-Stocked Lead-Time 32 Weeks
New Product

Mfr. Part No.
RT313243Q2

Mouser Part No
621-RT313243Q2

New Product

Diodes Incorporated

Real Time Clock Real Time Clock SEAM3225 T&R 3K

Datasheet

Non-Stocked Lead-Time 32 Weeks

Reel

£1.38

Min.: 3,000
Mult.: 3,000

: 3,000

I2C

YYYY-MM-DD

HH:MM:SS (24 hr)

SMD-10

1.3 V

5.5 V

- 40 C

+ 105 C

SMD/SMT

Reel

Real Time Clock I2C Bus RTC w/56byte NVRAM RTC

PT7C4311ZEEX
Diodes Incorporated
3,000: £0.524
Non-Stocked Lead-Time 28 Weeks

Mfr. Part No.
PT7C4311ZEEX

Mouser Part No
729-PT7C4311ZEEX

Diodes Incorporated

Real Time Clock I2C Bus RTC w/56byte NVRAM RTC

Learn More

Datasheet

Non-Stocked Lead-Time 28 Weeks

Reel

£0.524

Min.: 3,000
Mult.: 3,000

: 3,000

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

Backup Switching

1.2 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel

Real Time Clock Real Time Clock MSOP-8 T&R 2.5K

PT7C4337UEX-2017
Diodes Incorporated
2,500: £0.412
Non-Stocked Lead-Time 40 Weeks

Mfr. Part No.
PT7C4337UEX-2017

Mouser Part No
729-PT7C4337UEX-2017

Diodes Incorporated

Real Time Clock Real Time Clock MSOP-8 T&R 2.5K

Datasheet

Non-Stocked Lead-Time 40 Weeks

Reel

£0.412

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

: 2,500

Serial 2-Wire, I2C

YY-MM-DD-dd

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

No Backup Switching

1.2 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel

Real Time Clock 4 x 40 I C-bus LCD Segment Driver in TSSOP56 Package

PCF8553DTT/AY
NXP Semiconductors
1: £1.63
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
PCF8553DTT/AY

Mouser Part No
771-PCF8553DTT/AY

NXP Semiconductors

Real Time Clock 4 x 40 I C-bus LCD Segment Driver in TSSOP56 Package

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

Cut Tape

£1.63

£1.35

£1.07

£0.969

Reel

£0.863

View

Min.: 1
Mult.: 1

: 2,000

PCF8553DTT

Reel, Cut Tape

Real Time Clock 1338B-18 REAL TIME CLOCK

1338B-18DVGI8
Renesas Electronics
2,500: £1.24
Non-Stocked Lead-Time 33 Weeks

Mfr. Part No.
1338B-18DVGI8

Mouser Part No
972-1338B-18DVGI8

Renesas Electronics

Real Time Clock 1338B-18 REAL TIME CLOCK

Datasheet

Non-Stocked Lead-Time 33 Weeks

Reel

£1.24

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

: 2,500

1338

Reel

Real Time Clock 1338D-31 REAL TIME CLOCK

1338D-31DVGI8
Renesas Electronics
2,500: £1.17
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

£1.17

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

: 2,500

1338

Reel

Real Time Clock 1339D-31 REAL TIME CLOCK

1339D-31DVGI8
Renesas Electronics
2,500: £1.15
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

£1.15

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

: 2,500

1339

Reel

Real Time Clock Real Time Clock

RX-4571LC:B0 PURE SN
Epson Timing
1: £2.73
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

£2.73

£2.03

£1.89

£1.58

Reel

£1.34

£1.32

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: £1.23
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

£1.23

£1.21

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: £1.61
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

£1.61

£1.58

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: £7.93
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

£7.93

£6.17

£5.73

£5.25

Reel

£5.02

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: £1.37
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

£1.37

£1.35

£1.34

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: £2.56
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

£2.56

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: £4.23
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

£4.23

£4.22

£4.00

Min.: 250
Mult.: 250

: 250

Serial 4-Wire

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: £1.92
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

£1.92

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: £3.68
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

£3.68

£2.77

£2.55

£2.44

Reel

£2.07

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

Customer Service Office

Company

Resources

Support

3.2 mm x 2.5 mm x 1 mm
DFN-16
DFN-20
DFN2626-10
DFN-8
HWSON-8
MSOP-10
MSOP-8
PCDIP-24
PCDIP-28
PDIP-8
PLCC-28
QFN0202-18
QFN023023-16
QFN-16
QFN1818-12
SMD-10
SNT-A-8
SO-16
SO-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
1.8 V
2 V
2.38 V
2.4 V
2.5 V
2.7 V
3 V
3.3 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

1 uA
1.2 uA
1.4 mA
1.5 uA
1.8 uA
10 uA
100 uA
160 nA
180 nA
190 nA
2 mA
2 mA, 3 mA
2 uA
2.5 uA
200 nA
200 uA
220 nA
240 nA
250 nA
3 mA