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Real Time Clock

Real Time Clocks (RTCs) are available at Mouser Electronics 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. Please view our large selection of real time clocks below.

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Part #

Real Time Clock 32.768 kHz OPTION A TEMP COMP AEC-Q200

RV-3049-C3-32.768k-OPTION-A-TB-QA
Micro Crystal
1,000: $4.13
Non-Stocked
NRND

Mfr. Part No.
RV-3049-C3-32.768k-OPTION-A-TB-QA

Mouser Part No
428-202670-MG01

NRND

Micro Crystal

Real Time Clock 32.768 kHz OPTION A TEMP COMP AEC-Q200

Datasheet

Product Comments

Non-Stocked

$4.13

$3.95

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

- 40 C

+ 125 C

RV-3049-C3

SMD/SMT

AEC-Q200

Real Time Clock 32.768 kHz OPTION A TEMP COMP -40/+125C

RV-3029-C3-32.768kHz-OPTION-A-TB-QC
Micro Crystal
1,000: $4.09
Non-Stocked
NRND

Mfr. Part No.
RV-3029-C3-32.768kHz-OPTION-A-TB-QC

Mouser Part No
428-202678-MG01

NRND

Micro Crystal

Real Time Clock 32.768 kHz OPTION A TEMP COMP -40/+125C

Datasheet

Product Comments

Non-Stocked

Reel

$4.09

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

Reel: 1,000

- 40 C

+ 125 C

RV-3029-C3

SMD/SMT

Reel

Real Time Clock Low Power I2C Real Time Clock

PT7C4339WEX
Diodes Incorporated
Non-Stocked
Verify Status with Factory

Mfr. Part No.
PT7C4339WEX

Mouser Part No
729-PT7C4339WEX

Verify Status with Factory

Diodes Incorporated

Real Time Clock Low Power I2C Real Time Clock

Learn More

Datasheet

Non-Stocked

Quote

I2C

YY-MM-DD-dd

BCD

16 B

SOIC-8

Backup Switching

3 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel

Real Time Clock

RV-3129-C3-32.768k-OPTION-A-TB-QA
Micro Crystal
1,000: $3.75
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

$3.75

$3.60

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

Real Time Clock

RV-3129-C3-32.768k-OPTION-B-TB-QA
Micro Crystal
1,000: $3.13
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

$3.13

$3.02

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

Real Time Clock

RV-3149-C3-32.768k-OPTION-A-TB-QA
Micro Crystal
1,000: $3.75
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

$3.75

$3.60

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

Real Time Clock

RV-3149-C3-32.768k-OPTION-B-TB-QA
Micro Crystal
1,000: $3.13
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

$3.13

$3.02

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

Real Time Clock Integrated RC17 w/ NDK Crystal

MAX31329NELB+T
Analog Devices / Maxim Integrated
2,500: $3.45
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
MAX31329NELB+T

Mouser Part No
700-MAX31329NELB+T

Analog Devices / Maxim Integrated

Real Time Clock Integrated RC17 w/ NDK Crystal

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$3.45

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

Reel: 2,500

LGA-10

Reel

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

PT7C4311ZEEX
Diodes Incorporated
3,000: $0.97
Non-Stocked

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

Reel

$0.97

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

Reel: 3,000

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

56 B

Backup Switching

1.2 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel

Real Time Clock 32.768k crystal RTC Module Integrated

PT7C4337ACSE
Diodes Incorporated
1: $11.88
Non-Stocked Lead-Time 28 Weeks

Mfr. Part No.
PT7C4337ACSE

Mouser Part No
729-PT7C4337ACSE

Diodes Incorporated

Real Time Clock 32.768k crystal RTC Module Integrated

Learn More

Datasheet

Non-Stocked Lead-Time 28 Weeks

$11.88

$8.52

$6.31

Min.: 1
Mult.: 1

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

Tube

Real Time Clock PCA2002DUS/DA

PCA2002DUS/DAZ
NXP Semiconductors
4,000: $0.621
Non-Stocked Lead-Time 13 Weeks

Mfr. Part No.
PCA2002DUS/DAZ

Mouser Part No
771-PCA2002DUS/DAZ

NXP Semiconductors

Real Time Clock PCA2002DUS/DA

Datasheet

Non-Stocked Lead-Time 13 Weeks

Reel

$0.621

$0.598

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

Reel: 4,000

PCA2002

Reel

Real Time Clock 32 kHz watch circuit with programmable adaptive motor pulse and pulse period

PCF2003DUS/DAAZ
NXP Semiconductors
4,000: $0.532
Non-Stocked Lead-Time 13 Weeks

Mfr. Part No.
PCF2003DUS/DAAZ

Mouser Part No
771-PCF2003DUS/DAAZ

NXP Semiconductors

Real Time Clock 32 kHz watch circuit with programmable adaptive motor pulse and pulse period

Datasheet

Non-Stocked Lead-Time 13 Weeks

Reel

$0.532

$0.521

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

Reel: 4,000

PCF2003DUS

Reel

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

PCF8553DTT/AY
NXP Semiconductors
1: $3.32
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

$3.32

$2.21

$1.89

$1.68

Reel

$1.15

View

Min.: 1
Mult.: 1

Reel: 2,000

PCF8553DTT

Reel, Cut Tape

Real Time Clock RTC IC

PCF8564AU/10AB/1,0
NXP Semiconductors
33,890: $0.685
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
PCF8564AU/10AB/1,0

Mouser Part No
771-PCF8564AU10AB10

NXP Semiconductors

Real Time Clock RTC IC

Datasheet

Non-Stocked Lead-Time 16 Weeks

$0.685

Min.: 33,890
Mult.: 33,890

PCF8564A

Bulk

Real Time Clock 4 x 40 I C-bus LCD Segment Driver for Low Multiplex Rates, Frame Frequency 64 Hz in TSSOP56 Package

PCF8576DT/S400/2Y
NXP Semiconductors
2,000: $2.27
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
PCF8576DT/S400/2Y

Mouser Part No
771-PCF8576DTS4002Y

NXP Semiconductors

Real Time Clock 4 x 40 I C-bus LCD Segment Driver for Low Multiplex Rates, Frame Frequency 64 Hz in TSSOP56 Package

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$2.27

$2.20

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

Reel: 2,000

PCF8576D

Reel

Real Time Clock Real Time Clock

RX-4571LC:B0 PURE SN
Epson Timing
1,000: $2.42
Non-Stocked

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

Reel

$2.42

$2.36

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

Reel: 1,000

I2C

No Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel

Real Time Clock Real Time Clock

RX-4571SA:B0 PURE SN
Epson Timing
1,000: $2.21
Non-Stocked

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

Reel

$2.21

$2.17

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

Reel: 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: $2.82
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

$2.82

$2.77

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

Reel: 1,000

I2C

No Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel

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

RX-4571SAB0 PURE SN
Epson Timing
1,000: $2.40
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

$2.40

$2.29

$2.21

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

Reel: 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: $4.59
Non-Stocked

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

Reel

$4.59

$4.36

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

Reel: 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: $8.88
Non-Stocked

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

Reel

$8.88

$8.66

$7.53

Quote

Min.: 250
Mult.: 250

Reel: 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: $3.68
Non-Stocked

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

Reel

$3.68

$3.50

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

Reel: 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: $8.77
Non-Stocked

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

Cut Tape

$8.77

$6.28

$5.85

$5.41

Reel

$4.59

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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: $3.59
Non-Stocked

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

Reel

$3.59

$3.41

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

Reel: 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: $2.91
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

$2.91

$2.75

$2.67

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

Reel: 1,000

I2C

SOP-14

2.4 V

5.5 V

- 40 C

+ 85 C

RX-8035SA

SMD/SMT

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

DFN-16
DFN-20
DFN2626-10
DFN-8
Die
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