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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 PCF85163T/1

PCF85163T/1,518
NXP Semiconductors
2,500: $0.475
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
PCF85163T/1,518

Mouser Part No
771-PCF85163T1518

NXP Semiconductors

Real Time Clock PCF85163T/1

Product Comments

Non-Stocked Lead-Time 16 Weeks

Reel

$0.475

$0.435

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

: 2,500

I2C

HH:MM:SS (24 hr)

SOT-96

1 V

5.5 V

SMD/SMT

Reel

Real Time Clock 2-Wire Real Time Clock IC

R2023L-E2
Nisshinbo
3,000: $0.706
Non-Stocked

Mfr. Part No.
R2023L-E2

Mouser Part No
848-R2023L-E2

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

Datasheet

Non-Stocked

Reel

$0.706

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

: 3,000

Serial 2-Wire, I2C

BCD

QFN023023-16

No Backup Switching

1.7 V

5.5 V

- 40 C

+ 85 C

R2023L

SMD/SMT

Reel

Real Time Clock Timer control periph eral (TCP) 28-PLCC A 926-DP8570AV/NOPB

DP8570AVX/NOPB
Texas Instruments
750: $36.91
Non-Stocked Lead-Time 26 Weeks

Mfr. Part No.
DP8570AVX/NOPB

Mouser Part No
926-DP8570AVX/NOPB

Texas Instruments

Real Time Clock Timer control periph eral (TCP) 28-PLCC A 926-DP8570AV/NOPB

Datasheet

Non-Stocked Lead-Time 26 Weeks

Reel

$36.91

Min.: 750
Mult.: 750

: 750

Parallel

YY-MM-DD-dd

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

32 B

PLCC-28

Backup Switching

4.5 V

5.5 V

- 40 C

+ 85 C

DP8570A

SMD/SMT

Reel

Real Time Clock Real-time clock (RTC ) 28-PLCC -40 to 85 A 926-DP8573AV/NOPB

DP8573AVX/NOPB
Texas Instruments
750: $22.94
Non-Stocked Lead-Time 26 Weeks

Mfr. Part No.
DP8573AVX/NOPB

Mouser Part No
926-DP8573AVX/NOPB

Texas Instruments

Real Time Clock Real-time clock (RTC ) 28-PLCC -40 to 85 A 926-DP8573AV/NOPB

Datasheet

Non-Stocked Lead-Time 26 Weeks

Reel

$22.94

Min.: 750
Mult.: 750

: 750

Parallel

YY-MM-DD-dd

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

32 B

PLCC-28

Backup Switching

4.5 V

5.5 V

- 40 C

+ 85 C

DP8573A

SMD/SMT

Reel

Real Time Clock LDAL TIME CLK & TEMP COMPENSATED CR

ISL12020MIRZ-T
Renesas / Intersil
4,000: $4.62
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
ISL12020MIRZ-T

Mouser Part No
968-ISL12020MIRZ-T

Renesas / Intersil

Real Time Clock LDAL TIME CLK & TEMP COMPENSATED CR

Datasheet

Non-Stocked Lead-Time 22 Weeks

Reel

$4.62

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

: 4,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

128 B

DFN-20

Backup Switching

2.7 V

5.5 V

- 40 C

+ 85 C

ISL12020

SMD/SMT

Reel

Real Time Clock REAL TIME CLK W/MFK IMPROVED ESD AIR

ISL12022MIBZR5421
Renesas / Intersil
760: $4.52
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
ISL12022MIBZR5421

Mouser Part No
968-ISL12022MIBZR542

Renesas / Intersil

Real Time Clock REAL TIME CLK W/MFK IMPROVED ESD AIR

Datasheet

Non-Stocked Lead-Time 22 Weeks

$4.52

$4.41

Min.: 760
Mult.: 760

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

128 B

SOIC-20

Backup Switching

2.7 V

5.5 V

- 40 C

+ 85 C

ISL12022

SMD/SMT

Tube

Real Time Clock REAL TIME CLK W/MFK IMPROVED ESD AIR

ISL12022MIBZ-TR5421
Renesas / Intersil
3,000: $4.17
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
ISL12022MIBZ-TR5421

Mouser Part No
968-ISL12022MIBZTR54

Renesas / Intersil

Real Time Clock REAL TIME CLK W/MFK IMPROVED ESD AIR

Datasheet

Non-Stocked Lead-Time 22 Weeks

Cut Tape

$4.17

Min.: 3,000
Mult.: 1,000

: 1,000

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

128 B

SOIC-20

Backup Switching

2.7 V

5.5 V

- 40 C

+ 85 C

ISL12022

SMD/SMT

Reel

Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS

ISL12058IBZ-T
Renesas / Intersil
2,500: $1.51
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
ISL12058IBZ-T

Mouser Part No
968-ISL12058IBZ-T

Renesas / Intersil

Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS

Datasheet

Non-Stocked Lead-Time 22 Weeks

Reel

$1.51

$1.49

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

: 2,500

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SOIC-8

No Backup Switching

1.8 V

3.6 V

- 40 C

+ 85 C

ISL12058

SMD/SMT

Reel

Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS

ISL12058IRTZ-T
Renesas / Intersil
6,000: $1.49
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
ISL12058IRTZ-T

Mouser Part No
968-ISL12058IRTZ-T

Renesas / Intersil

Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS

Datasheet

Non-Stocked Lead-Time 22 Weeks

Reel

$1.49

Min.: 6,000
Mult.: 6,000

: 6,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

TDFN-8

No Backup Switching

1.8 V

3.6 V

- 40 C

+ 85 C

ISL12058

SMD/SMT

Reel

Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS

ISL12058IUZ
Renesas / Intersil
2,000: $1.52
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
ISL12058IUZ

Mouser Part No
968-ISL12058IUZ

Renesas / Intersil

Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS

Datasheet

Non-Stocked Lead-Time 22 Weeks

$1.52

$1.47

$1.44

Min.: 2,000
Mult.: 50

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

MSOP-8

No Backup Switching

1.8 V

3.6 V

- 40 C

+ 85 C

ISL12058

SMD/SMT

Tube

Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS

ISL12058IUZ-T
Renesas / Intersil
2,500: $1.43
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
ISL12058IUZ-T

Mouser Part No
968-ISL12058IUZ-T

Renesas / Intersil

Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS

Datasheet

Non-Stocked Lead-Time 22 Weeks

Reel

$1.43

$1.40

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

: 2,500

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

MSOP-8

No Backup Switching

1.8 V

3.6 V

- 40 C

+ 85 C

ISL12058

SMD/SMT

Reel

Real Time Clock I2CAL TIME CLK/CLNDR 8LD

ISL1208IB8Z-T7A
Renesas / Intersil
1: $4.16
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
ISL1208IB8Z-T7A

Mouser Part No
968-ISL1208IB8Z-T7A

Renesas / Intersil

Real Time Clock I2CAL TIME CLK/CLNDR 8LD

Datasheet

Non-Stocked Lead-Time 22 Weeks

Cut Tape

$4.16

$3.14

$2.89

$2.59

Reel

$2.41

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

2 B

SOIC-8

Backup Switching

2.7 V

5.5 V

- 40 C

+ 85 C

ISL1208

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock RTC I2c Serial IC 1.8 to 5.5V 32kHz

1337AGDCGI8
Renesas Electronics
1: $3.50
Non-Stocked Lead-Time 33 Weeks

Mfr. Part No.
1337AGDCGI8

Mouser Part No
972-1337AGDCGI8

Renesas Electronics

Real Time Clock RTC I2c Serial IC 1.8 to 5.5V 32kHz

Datasheet

Non-Stocked Lead-Time 33 Weeks

Cut Tape

$3.50

$2.61

$2.39

$2.14

View

Reel

$1.88

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SOIC-8

1337AGD

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock RTC I2c Serial IC 1.8 to 5.5V 32kHz

1337AGDVGI8
Renesas Electronics
1: $2.72
Non-Stocked Lead-Time 33 Weeks

Mfr. Part No.
1337AGDVGI8

Mouser Part No
972-1337AGDVGI8

Renesas Electronics

Real Time Clock RTC I2c Serial IC 1.8 to 5.5V 32kHz

Datasheet

Non-Stocked Lead-Time 33 Weeks

Cut Tape

$2.72

$2.02

$1.84

$1.65

View

Reel

$1.36

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

MSOP-8

1337AGD

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock .9RTC BASE

1338-31DVGI
Renesas Electronics
1: $3.32
Non-Stocked Lead-Time 33 Weeks

Mfr. Part No.
1338-31DVGI

Mouser Part No
972-1338-31DVGI

Renesas Electronics

Real Time Clock .9RTC BASE

Datasheet

Non-Stocked Lead-Time 33 Weeks

$3.32

$2.48

$2.00

$1.92

$1.84

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

56 B

MSOP-8

Backup Switching

3.3 V

5.5 V

- 40 C

+ 85 C

1338

SMD/SMT

Tube

Real Time Clock 1338B-18 REAL TIME CLOCK

1338B-18DVGI
Renesas Electronics
1: $2.94
Non-Stocked Lead-Time 33 Weeks

Mfr. Part No.
1338B-18DVGI

Mouser Part No
972-1338B-18DVGI

Renesas Electronics

Real Time Clock 1338B-18 REAL TIME CLOCK

Datasheet

Non-Stocked Lead-Time 33 Weeks

$2.94

$2.20

$1.82

$1.81

View

Min.: 1
Mult.: 1

1338

Tube

Real Time Clock Real Time Clock

1339-31DCGI
Renesas Electronics
1: $3.93
Lead-Time 33 Weeks

Mfr. Part No.
1339-31DCGI

Mouser Part No
972-1339-31DCGI

Renesas Electronics

Real Time Clock Real Time Clock

Datasheet

Lead-Time 33 Weeks

$3.93

$2.96

$2.65

$2.40

$2.33

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

SOIC-8

Backup Switching

3.3 V

5.5 V

- 40 C

+ 85 C

1339

SMD/SMT

Tube

Real Time Clock Real Time Clock

1339-31DCGI8
Renesas Electronics
1: $3.93
Non-Stocked Lead-Time 33 Weeks

Mfr. Part No.
1339-31DCGI8

Mouser Part No
972-1339-31DCGI8

Renesas Electronics

Real Time Clock Real Time Clock

Datasheet

Non-Stocked Lead-Time 33 Weeks

Cut Tape

$3.93

$2.96

$2.72

$2.46

$2.33

Reel

$2.33

Min.: 1
Mult.: 1

: 3,000

Serial 2-Wire, I2C

YY-MM-DD-dd

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

SOIC-8

Backup Switching

1.3 V

3.6 V

- 40 C

+ 85 C

1339

SMD/SMT

Reel, Cut Tape

Real Time Clock Real Time Clock

1339-31DVGI
Renesas Electronics
1: $3.07
Non-Stocked Lead-Time 33 Weeks

Mfr. Part No.
1339-31DVGI

Mouser Part No
972-1339-31DVGI

Renesas Electronics

Real Time Clock Real Time Clock

Datasheet

Non-Stocked Lead-Time 33 Weeks

$3.07

$2.31

$2.25

$2.11

View

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

TSSOP-8

Backup Switching

1.3 V

3.7 V

- 40 C

+ 85 C

1339

SMD/SMT

Tube

Real Time Clock 1339D-31 REAL TIME CLOCK

1339D-31DVGI
Renesas Electronics
1: $2.77
Non-Stocked Lead-Time 33 Weeks

Mfr. Part No.
1339D-31DVGI

Mouser Part No
972-1339D-31DVGI

Renesas Electronics

Real Time Clock 1339D-31 REAL TIME CLOCK

Datasheet

Non-Stocked Lead-Time 33 Weeks

$2.77

$2.07

$1.71

$1.70

View

Min.: 1
Mult.: 1

1339

Tube

Real Time Clock 4-wire Serial Interface

RS5C348A-E2-F
Nisshinbo
1: $1.64
Non-Stocked Lead-Time 12 Weeks
End of Life

Mfr. Part No.
RS5C348A-E2-F

Mouser Part No
848-RS5C348A-E2-F

End of Life

Nisshinbo

Real Time Clock 4-wire Serial Interface

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

$1.64

$1.20

$1.09

$0.961

Reel

$0.845

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Serial 4-Wire

YY-MM-DD-dd

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

16 B

SSOP-10

Backup Switching

2 V

5.5 V

- 40 C

+ 85 C

RS5C348

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 32.768k crystal RTC Module Integrated

PT7C4337ACSE
Diodes Incorporated
1: $6.76
Non-Stocked Lead-Time 12 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 12 Weeks

$6.76

$5.18

$4.54

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 32.768 kHz OPTION B TEMP COMP SPI

RV-3049-C3-32.768KHZ-OPTION-B-TA-QC
Micro Crystal
1,000: $2.03
Non-Stocked
NRND

Mfr. Part No.
RV-3049-C3-32.768KHZ-OPTION-B-TA-QC

Mouser Part No
428-201734-MG01

NRND

Micro Crystal

Real Time Clock 32.768 kHz OPTION B TEMP COMP SPI

Datasheet

Product Comments

Non-Stocked

$2.03

$1.98

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

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

2 B

Backup Switching

1.3 V

5.5 V

- 40 C

+ 85 C

RV-3049-C3

SMD/SMT

Real Time Clock 32.768 kHz OPTION A TEMP COMP I2C

RV-3029-C3-32.768KHZ-OPTION-A-TA-QC
Micro Crystal
1,000: $2.51
Non-Stocked
NRND

Mfr. Part No.
RV-3029-C3-32.768KHZ-OPTION-A-TA-QC

Mouser Part No
428-201875-MG01

NRND

Micro Crystal

Real Time Clock 32.768 kHz OPTION A TEMP COMP I2C

Datasheet

Product Comments

Non-Stocked

$2.51

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

- 40 C

+ 85 C

RV-3029-C3

SMD/SMT

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

RV-3029-C3-32.768KHZ-OPTION-B-TB-QC
Micro Crystal
1,000: $2.30
Non-Stocked
NRND

Mfr. Part No.
RV-3029-C3-32.768KHZ-OPTION-B-TB-QC

Mouser Part No
428-201990-MG01

NRND

Micro Crystal

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

Datasheet

Product Comments

Non-Stocked

Reel

$2.30

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

: 1,000

- 40 C

+ 125 C

RV-3029-C3

SMD/SMT

Reel

Real Time Clock

Customer Service Office

Company

Resources

Support

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