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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 RTCs 3725 10-SMD SPI HH:MM:SS (12/24 hr) YY-MM-DD-dd

AB-RTCMC-32.768KHZ-EOA9-S3-HAT
ABRACON
1: £6.29
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
AB-RTCMC-32.768KHZ-EOA9-S3-HAT

Mouser Part No
815-2768KHZEOA9S3HAT

ABRACON

Real Time Clock RTCs 3725 10-SMD SPI HH:MM:SS (12/24 hr) YY-MM-DD-dd

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

£6.29

£5.13

£3.68

Reel

£3.68

£3.62

Quote

Min.: 1
Mult.: 1

: 1,000

AB-RTCMC

Reel, Cut Tape

Real Time Clock IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012

AB-RTC-XP-32.768KHZ-2-T3
ABRACON
3,000: £1.08
Non-Stocked Lead-Time 12 Weeks
New Product

Mfr. Part No.
AB-RTC-XP-32.768KHZ-2-T3

Mouser Part No
815-AB-RTCXP327682T

New Product

ABRACON

Real Time Clock IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£1.08

£1.06

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

: 3,000

I2C

DFN-8

Integrated Battery

900 mV

5.5 V

- 40 C

+ 85 C

AB-RTC-XP-32.768kHz-2

SMD/SMT

Reel

Real Time Clock AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012

AB-RTC-XPA-32.768KHZ-2-T3
ABRACON
3,000: £1.13
Non-Stocked Lead-Time 10 Weeks
New Product

Mfr. Part No.
AB-RTC-XPA-32.768KHZ-2-T3

Mouser Part No
815-ABRTCXPA327682T3

New Product

ABRACON

Real Time Clock AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

£1.13

£1.11

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

: 3,000

I2C

DFN-8

Integrated Battery

900 mV

5.5 V

- 40 C

+ 85 C

AB-RTC-XPA-32.768kHz-2

SMD/SMT

Reel

Real Time Clock IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 3215

AB-RTC-XL-32.768KHZ-2-T3
ABRACON
3,000: £1.11
Non-Stocked Lead-Time 10 Weeks
New Product

Mfr. Part No.
AB-RTC-XL-32.768KHZ-2-T3

Mouser Part No
815-RTCXL32768KHZ2T3

New Product

ABRACON

Real Time Clock IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 3215

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

£1.11

£1.09

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

: 3,000

I2C

HH:MM:SS (24 hr)

SON-8

No Backup Switching

900 mV

5.5 V

- 40 C

+ 85 C

AB-RTC-XL

SMD/SMT

Reel

Real Time Clock AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 3215

AB-RTC-XLA-32.768KHZ-2-T3
ABRACON
3,000: £1.13
Non-Stocked Lead-Time 10 Weeks
New Product

Mfr. Part No.
AB-RTC-XLA-32.768KHZ-2-T3

Mouser Part No
815-TCXLA32768KHZ2T3

New Product

ABRACON

Real Time Clock AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 3215

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

£1.13

£1.10

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

: 3,000

I2C

HH:MM:SS (24 hr)

SON-8

No Backup Switching

900 mV

5.5 V

- 40 C

+ 85 C

AB-RTC-XLA

SMD/SMT

Reel

Real Time Clock 4-Wire Real Time Clock IC

R2043L-E2
Nisshinbo
3,000: £0.53
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R2043L-E2

Mouser Part No
848-R2043L-E2

Nisshinbo

Real Time Clock 4-Wire Real Time Clock IC

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£0.53

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

: 3,000

Serial 4-Wire, SPI

BCD

QFN023023-16

No Backup Switching

1.7 V

5.5 V

- 40 C

+ 85 C

R2043L

SMD/SMT

Reel

Real Time Clock 2-Wire Real Time Clock IC

R2051L01-E2
Nisshinbo
3,000: £0.582
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R2051L01-E2

Mouser Part No
848-R2051L01-E2

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£0.582

£0.578

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

: 3,000

Serial 2-Wire, I2C

YY-MM-DD-dd

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

QFN023023-16

Backup Switching

750 mV

5.5 V

- 40 C

+ 85 C

R2051L

SMD/SMT

Reel

Real Time Clock High precision I2C-Bus Real-Time Clock Module

R2051S03-E2-F
Nisshinbo
2,000: £0.624
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R2051S03-E2-F

Mouser Part No
848-R2051S03-E2-F

Nisshinbo

Real Time Clock High precision I2C-Bus Real-Time Clock Module

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£0.624

£0.621

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

: 2,000

SSOP-16

R2051S

Reel

Real Time Clock 2-Wire Real Time Clock IC

R2051T01-E2-F
Nisshinbo
2,000: £0.582
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R2051T01-E2-F

Mouser Part No
848-R2051T01E2F

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£0.582

£0.578

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

: 2,000

Serial 2-Wire, I2C

BCD

TSSOP-10

Backup Switching

750 mV

5.5 V

- 40 C

+ 85 C

R2051T

SMD/SMT

Reel

Real Time Clock 3-Wire Real Time Clock IC

R2061L01-E2
Nisshinbo
3,000: £0.57
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R2061L01-E2

Mouser Part No
848-R2061L01-E2

Nisshinbo

Real Time Clock 3-Wire Real Time Clock IC

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£0.57

£0.559

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

: 3,000

Serial 3-Wire

BCD

QFN023023-16

Backup Switching

750 mV

5.5 V

- 40 C

+ 85 C

R2061L

SMD/SMT

Reel

Real Time Clock 3-Wire Real Time Clock IC

R2061S02-E2-F
Nisshinbo
2,000: £0.656
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R2061S02-E2-F

Mouser Part No
848-R2061S02E2F

Nisshinbo

Real Time Clock 3-Wire Real Time Clock IC

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£0.656

£0.621

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

: 2,000

Serial 3-Wire

BCD

SSOP-16

Backup Switching

750 mV

5.5 V

- 40 C

+ 85 C

R2061S

SMD/SMT

Reel

Real Time Clock 3-Wire Real Time Clock IC

R2062L01-E2
Nisshinbo
3,000: £0.55
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R2062L01-E2

Mouser Part No
848-R2062L01-E2

Nisshinbo

Real Time Clock 3-Wire Real Time Clock IC

Non-Stocked Lead-Time 12 Weeks

Reel

£0.55

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

: 3,000

Serial 3-Wire

BCD

QFN023023-16

Backup Switching

750 mV

5.5 V

- 40 C

+ 85 C

R2062L

SMD/SMT

Reel

Real Time Clock 3 wire interface Real-Time Clock ICs with Battery Backup switch-over Function

R2062L02-E2
Nisshinbo
3,000: £0.55
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R2062L02-E2

Mouser Part No
848-R2062L02-E2

Nisshinbo

Real Time Clock 3 wire interface Real-Time Clock ICs with Battery Backup switch-over Function

Non-Stocked Lead-Time 12 Weeks

Reel

£0.55

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

: 3,000

QFN023023-16

R2062L

Reel

Real Time Clock 2-Wire Real Time Clock IC

R2221L-E2
Nisshinbo
3,000: £0.593
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R2221L-E2

Mouser Part No
848-R2221L-E2

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£0.593

£0.588

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

: 3,000

Serial 2-Wire, I2C

BCD

QFN1818-12

No Backup Switching

1.5 V

5.5 V

- 40 C

+ 85 C

R2221L

SMD/SMT

Reel

Real Time Clock 2-Wire Real Time Clock IC

R2262L01-E2
Nisshinbo
3,000: £0.562
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R2262L01-E2

Mouser Part No
848-R2262L01-E2

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£0.562

£0.551

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

: 3,000

Serial 3-Wire

YY-MM-DD-dd

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

QFN0202-18

Backup Switching

600 mV

5.5 V

- 40 C

+ 85 C

R2262L

SMD/SMT

Reel

Real Time Clock 2-Wire Real Time Clock IC

RV5C386A-E2-F
Nisshinbo
1: £1.23
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
RV5C386A-E2-F

Mouser Part No
848-RV5C386AE2F

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

£1.23

£0.899

£0.818

£0.773

Reel

£0.593

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Serial 2-Wire, I2C

YY-MM-DD-dd

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

SSOP-10

No Backup Switching

2 V

5.5 V

- 40 C

+ 85 C

RV5C386

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 32.768 kHz OPTION B TEMP COMP I2C

RV-3029-C3-32.768KHZ-OPTION-B-TA-QC
Micro Crystal
1,000: £1.91
Non-Stocked Lead-Time 2 Weeks
NRND

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

Mouser Part No
428-201732-MG01

NRND

Micro Crystal

Real Time Clock 32.768 kHz OPTION B TEMP COMP I2C

Datasheet

Product Comments

Non-Stocked Lead-Time 2 Weeks

£1.91

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

- 40 C

+ 85 C

RV-3029-C3

SMD/SMT

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: £2.54
Non-Stocked Lead-Time 10 Weeks
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 Lead-Time 10 Weeks

Reel

£2.54

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

: 1,000

- 40 C

+ 125 C

RV-3029-C3

SMD/SMT

Reel

Real Time Clock Real-Time Clock SPI interface, -40 to +85 C, 16-pin QFN

AM0815AQ
Ambiq
1: £0.537
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
AM0815AQ

Mouser Part No
222-AM0815AQ

Ambiq

Real Time Clock Real-Time Clock SPI interface, -40 to +85 C, 16-pin QFN

Datasheet

Non-Stocked Lead-Time 24 Weeks

£0.537

Min.: 1
Mult.: 1

Artasie SPI

Real Time Clock 32.768 kHz +/-10 PPM I2C -40/+85C

RV-4162-C7-32.768KHZ-10PPM-TA-QC
Micro Crystal
1: £2.86
Non-Stocked

Mfr. Part No.
RV-4162-C7-32.768KHZ-10PPM-TA-QC

Mouser Part No
428-201516-MG01

Micro Crystal

Real Time Clock 32.768 kHz +/-10 PPM I2C -40/+85C

Datasheet

Non-Stocked

Cut Tape

£2.86

£2.14

£1.96

£1.75

Reel

£1.57

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

- 40 C

+ 85 C

RV-4162-C7

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock Real Time Clock RTC 3.7 x 2.5 x 0.9mm 6ppm @ -40C to +85C commercial grade

RV-3129-C3-32.768kHz-OPTION-A-TA-QC-T3
Micro Crystal
1,000: £2.32
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
RV-3129-C3-32.768kHz-OPTION-A-TA-QC-T3

Mouser Part No
428-3129C3OPTATAQCT3

Micro Crystal

Real Time Clock Real Time Clock RTC 3.7 x 2.5 x 0.9mm 6ppm @ -40C to +85C commercial grade

Datasheet

Non-Stocked Lead-Time 15 Weeks

Reel

£2.32

£2.29

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

: 1,000

Reel

Real Time Clock

RV-3129-C3-32.768kHz-OPTION-A-TB-QC
Micro Crystal
1: £4.49
Non-Stocked

Mfr. Part No.
RV-3129-C3-32.768kHz-OPTION-A-TB-QC

Mouser Part No
428-RV3129C3OPTATBQC

Micro Crystal

Real Time Clock

Datasheet

Non-Stocked

£4.49

£3.39

£3.11

£2.80

View

Min.: 1
Mult.: 1

Real Time Clock SERIAL RTC W/AUDIO

M41T00AUDD1F
STMicroelectronics
3,000: £5.36
Non-Stocked Lead-Time 30 Weeks

Mfr. Part No.
M41T00AUDD1F

Mouser Part No
511-M41T00AUDD1F

STMicroelectronics

Real Time Clock SERIAL RTC W/AUDIO

Datasheet

Non-Stocked Lead-Time 30 Weeks

Reel

£5.36

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

: 3,000

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

DFN-16

Backup Switching

3 V

3.6 V

0 C

+ 70 C

M41T00AUD

SMD/SMT

Reel

Real Time Clock Serial I2C bus RTC

M41T83ZQA6F
STMicroelectronics
1: £5.58
Non-Stocked Lead-Time 30 Weeks

Mfr. Part No.
M41T83ZQA6F

Mouser Part No
511-M41T83ZQA6F

STMicroelectronics

Real Time Clock Serial I2C bus RTC

Datasheet

Non-Stocked Lead-Time 30 Weeks

Cut Tape

£5.58

£4.30

£3.97

£3.62

View

Reel

£3.08

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Serial

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

Backup Switching

2.38 V

5.5 V

- 40 C

+ 85 C

M41T83

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock Serial I/O Real Time Clock

NJU6350R-TE1
Nisshinbo
2,000: £0.624
Non-Stocked

Mfr. Part No.
NJU6350R-TE1

Mouser Part No
513-NJU6350R-TE1

Nisshinbo

Real Time Clock Serial I/O Real Time Clock

Datasheet

Non-Stocked

Reel

£0.624

£0.613

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

: 2,000

VSP-8

- 30 C

+ 80 C

NJU6350

SMD/SMT

Reel

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