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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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Download Table (.CSV)

Part #

Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle

DS1390U-33+
Analog Devices / Maxim Integrated
1: $6.86
1,004In Stock

Mfr. Part No.
DS1390U-33+

Mouser Part No
700-DS1390U-33

Analog Devices / Maxim Integrated

Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle

Datasheet

1,004In Stock

$6.86

$5.29

$4.65

$4.45

View

Min.: 1
Mult.: 1

Serial 3-Wire, SPI

YY-MM-DD-dd

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

uSOP-10

Backup Switching

2.97 V

5.5 V

- 40 C

+ 85 C

DS1390U

SMD/SMT

Tube

Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle

DS1391U-33+
Analog Devices / Maxim Integrated
1: $6.80
480In Stock

Mfr. Part No.
DS1391U-33+

Mouser Part No
700-DS1391U-33

Analog Devices / Maxim Integrated

Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle

Datasheet

480In Stock

$6.80

$5.24

$4.60

$4.41

View

Min.: 1
Mult.: 1

SPI

YY-MM-DD-dd

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

uSOP-10

Backup Switching

2.97 V

5.5 V

- 40 C

+ 85 C

DS1391U

SMD/SMT

Tube

Real Time Clock Y2K-Compliant Watchdog Real-Time Clocks

DS1501YN+
Analog Devices / Maxim Integrated
1: $19.88
164In Stock

Mfr. Part No.
DS1501YN+

Mouser Part No
700-DS1501YN

Analog Devices / Maxim Integrated

Real Time Clock Y2K-Compliant Watchdog Real-Time Clocks

Datasheet

164In Stock

$19.88

$15.47

$14.75

$13.22

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

256 B

PDIP-28

Backup Switching

4.5 V

5.5 V

- 40 C

+ 85 C

DS1501YN

Through Hole

Tube

Real Time Clock Y2K-Compliant Watchdog Real-Time Clocks

DS1501YZN+
Analog Devices / Maxim Integrated
1: $22.26
216In Stock

Mfr. Part No.
DS1501YZN+

Mouser Part No
700-DS1501YZN

Analog Devices / Maxim Integrated

Real Time Clock Y2K-Compliant Watchdog Real-Time Clocks

Datasheet

216In Stock

$22.26

$17.83

$16.71

$16.28

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

256 B

SO-28

Backup Switching

4.5 V

5.5 V

- 40 C

+ 85 C

DS1501YZN+

SMD/SMT

Tube

Real Time Clock 256k Nonvolatile, Y2K-Compliant Timekeep

DS1554-70IND+
Analog Devices / Maxim Integrated
1: $54.80
190In Stock

Mfr. Part No.
DS1554-70IND+

Mouser Part No
700-DS1554-70IND

Analog Devices / Maxim Integrated

Real Time Clock 256k Nonvolatile, Y2K-Compliant Timekeep

Datasheet

190In Stock

$54.80

$44.83

$42.07

$41.35

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

32 kB

EDIP-32

Integrated Battery

4.5 V

5.5 V

- 40 C

+ 85 C

DS1554

Through Hole

Tube

Real Time Clock Real-Time Event Recorder

DS1678S+
Analog Devices / Maxim Integrated
1: $11.57
1,520In Stock

Mfr. Part No.
DS1678S+

Mouser Part No
700-DS1678S

Analog Devices / Maxim Integrated

Real Time Clock Real-Time Event Recorder

Datasheet

1,520In Stock

$11.57

$9.08

$7.82

$7.54

View

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

32 B

SOIC-8

Backup Switching

4.5 V

5.5 V

- 40 C

+ 85 C

DS1678S

SMD/SMT

Tube

Real Time Clock TOTAL-ELAPSED-TIME RECORDER WITH AL

DS1683S+
Analog Devices / Maxim Integrated
1: $7.56
831In Stock

Mfr. Part No.
DS1683S+

Mouser Part No
700-DS1683S+

Analog Devices / Maxim Integrated

Real Time Clock TOTAL-ELAPSED-TIME RECORDER WITH AL

Datasheet

831In Stock

$7.56

$5.85

$5.42

$4.94

View

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

Binary

10 B

SOIC-8

No Backup Switching

2.5 V

5.5 V

- 40 C

+ 85 C

DS1683

SMD/SMT

Tube

Real Time Clock 3V/5V Real-Time Clock

DS1685EN-3+T&R
Analog Devices / Maxim Integrated
1: $12.42
1,269In Stock

Mfr. Part No.
DS1685EN-3+T&R

Mouser Part No
700-DS1685EN-3T&R

Analog Devices / Maxim Integrated

Real Time Clock 3V/5V Real-Time Clock

Datasheet

1,269In Stock

Cut Tape

$12.42

$9.77

$9.10

$8.37

View

Reel

$7.63

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Multiplexed

YY-MM-DD-dd

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

242 B

TSSOP-24

Backup Switching

2.7 V

3.7 V

- 40 C

+ 85 C

DS1685EN

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

DS1744-70+
Analog Devices / Maxim Integrated
1: $55.77
98In Stock

Mfr. Part No.
DS1744-70+

Mouser Part No
700-DS1744-70

Analog Devices / Maxim Integrated

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

Datasheet

98In Stock

More Info Available

$55.77

$46.83

$44.01

$41.48

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

32 kB

EDIP-28

Integrated Battery

4.5 V

5.5 V

0 C

+ 70 C

DS1744

Through Hole

Tube

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

DS1744P-70+
Analog Devices / Maxim Integrated
1: $52.38
80In Stock

Mfr. Part No.
DS1744P-70+

Mouser Part No
700-DS1744P-70

Analog Devices / Maxim Integrated

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

Datasheet

80In Stock

$52.38

$43.06

$39.75

$37.90

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

32 kB

PowerCap Module-34

Backup Switching

4.5 V

5.5 V

0 C

+ 70 C

DS1744P

SMD/SMT

Tray

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

DS1744WP-120+
Analog Devices / Maxim Integrated
1: $54.57
154In Stock

Mfr. Part No.
DS1744WP-120+

Mouser Part No
700-DS1744WP-120

Analog Devices / Maxim Integrated

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

Datasheet

154In Stock

$54.57

$44.92

$41.16

$38.65

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

32 kB

PowerCap Module-34

Backup Switching

2.97 V

3.63 V

0 C

+ 70 C

DS1744WP

Through Hole

Tray

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

DS1746W-120+
Analog Devices / Maxim Integrated
1: $61.01
62In Stock

Mfr. Part No.
DS1746W-120+

Mouser Part No
700-DS1746W-120

Analog Devices / Maxim Integrated

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

Datasheet

62In Stock

$61.01

$50.07

$47.04

$44.64

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

128 kB

EDIP-32

Integrated Battery

2.97 V

3.63 V

0 C

+ 70 C

DS1746W

Through Hole

Tube

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

DS1746WP-120+
Analog Devices / Maxim Integrated
1: $58.19
70In Stock

Mfr. Part No.
DS1746WP-120+

Mouser Part No
700-DS1746WP-120

Analog Devices / Maxim Integrated

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

Datasheet

70In Stock

$58.19

$47.99

$44.37

$42.34

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

128 kB

PowerCap Module-34

Backup Switching

2.97 V

3.63 V

0 C

+ 70 C

DS1746WP

SMD/SMT

Tray

Real Time Clock 1-Wire Time Chip With Interrupt

DS2417P+
Analog Devices / Maxim Integrated
1: $4.56
543In Stock
240On Order

Mfr. Part No.
DS2417P+

Mouser Part No
700-DS2417P

Analog Devices / Maxim Integrated

Real Time Clock 1-Wire Time Chip With Interrupt

Datasheet

543In Stock

240On Order

$4.56

$3.47

$3.20

$2.86

View

Min.: 1
Mult.: 1

Serial 1-Wire

Binary

4 B

TSOC-6

Backup Switching

2.2 V

6 V

- 40 C

+ 85 C

DS2417P

SMD/SMT

Tube

Real Time Clock 5ppm, I2C Real-Time Clock

DS3231M+
Analog Devices / Maxim Integrated
1: $13.59
1,083In Stock

Mfr. Part No.
DS3231M+

Mouser Part No
700-DS3231M+

Analog Devices / Maxim Integrated

Real Time Clock 5ppm, I2C Real-Time Clock

Learn More

Datasheet

1,083In Stock

$13.59

$10.71

$9.61

$9.05

View

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SO-16

Backup Switching

2.3 V

5.5 V

- 40 C

+ 85 C

DS3231M

SMD/SMT

Tube

Real Time Clock 5ppm, I2C Real-Time Clock

DS3231MZ+
Analog Devices / Maxim Integrated
1: $13.17
1,180In Stock

Mfr. Part No.
DS3231MZ+

Mouser Part No
700-DS3231MZ+

Analog Devices / Maxim Integrated

Real Time Clock 5ppm, I2C Real-Time Clock

Learn More

Datasheet

1,180In Stock

$13.17

$10.37

$9.67

$8.89

View

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SOIC-8

Backup Switching

2.3 V

5.5 V

- 40 C

+ 85 C

DS3231MZ

SMD/SMT

Tube

Real Time Clock Extremely Accurate I C-Integrated RTC/TC

DS3231S#
Analog Devices / Maxim Integrated
1: $14.62
377In Stock

Mfr. Part No.
DS3231S#

Mouser Part No
700-DS3231S#

Analog Devices / Maxim Integrated

Real Time Clock Extremely Accurate I C-Integrated RTC/TC

Datasheet

377In Stock

$14.62

$11.56

$10.38

$9.79

View

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SO-16

Backup Switching

2.3 V

5.5 V

0 C

+ 70 C

DS3231S

SMD/SMT

Tube

Real Time Clock Extremely Accurate I C-Integrated RTC/TC

DS3231S#T&R
Analog Devices / Maxim Integrated
1: $12.82
1,546In Stock

Mfr. Part No.
DS3231S#T&R

Mouser Part No
700-DS3231S#T&R-

Analog Devices / Maxim Integrated

Real Time Clock Extremely Accurate I C-Integrated RTC/TC

Datasheet

1,546In Stock

Cut Tape

$12.82

$10.09

$9.41

$8.66

View

Reel

$7.93

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SO-16

Backup Switching

2.3 V

5.5 V

0 C

+ 70 C

DS3231S

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 5ppm, I C Real-Time Clock with SRAM

DS3232MZ/V+
Analog Devices / Maxim Integrated
1: $11.86
337In Stock

Mfr. Part No.
DS3232MZ/V+

Mouser Part No
700-DS3232MZ/V+

Analog Devices / Maxim Integrated

Real Time Clock 5ppm, I C Real-Time Clock with SRAM

Datasheet

337In Stock

$11.86

$9.31

$8.67

$7.96

View

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

236 B

SOIC-8

Backup Switching

2.3 V

4.5 V

- 40 C

+ 85 C

DS3232MZ

SMD/SMT

AEC-Q100

Tube

Real Time Clock Extremely Accurate I C RTC with Integrat

DS3232S#T&R
Analog Devices / Maxim Integrated
1: $13.17
233In Stock

Mfr. Part No.
DS3232S#T&R

Mouser Part No
700-DS3232S#T&R-

Analog Devices / Maxim Integrated

Real Time Clock Extremely Accurate I C RTC with Integrat

Datasheet

233In Stock

Cut Tape

$13.17

$10.37

$9.67

$8.90

View

Reel

$8.12

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SO-20

0 C

+ 70 C

DS3232S

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock Extremely Accurate I C RTC with Integrat

DS3232SN#
Analog Devices / Maxim Integrated
1: $15.54
242In Stock

Mfr. Part No.
DS3232SN#

Mouser Part No
700-DS3232SN#

Analog Devices / Maxim Integrated

Real Time Clock Extremely Accurate I C RTC with Integrat

Datasheet

242In Stock

More Info Available

$15.54

$12.30

$11.23

$10.56

View

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

236 B

SO-20

Backup Switching

2.3 V

5.5 V

- 40 C

+ 85 C

DS3232SN

SMD/SMT

Tube

Real Time Clock Extremely Accurate SPI Bus RTC with Inte

DS3234S#T&R
Analog Devices / Maxim Integrated
1: $13.17
347In Stock
1,950On Order

Mfr. Part No.
DS3234S#T&R

Mouser Part No
700-DS3234S#T&R-

Analog Devices / Maxim Integrated

Real Time Clock Extremely Accurate SPI Bus RTC with Inte

Datasheet

347In Stock

1,950On Order

Cut Tape

$13.17

$10.37

$9.67

$8.90

View

Reel

$8.12

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SPI

YY-MM-DD-dd

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

256 B

SO-20

Backup Switching

2 V

5.5 V

0 C

+ 70 C

DS3234S

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock RTC with power management

MAX31341CETB+T
Analog Devices / Maxim Integrated
1: $2.61
3,876In Stock

Mfr. Part No.
MAX31341CETB+T

Mouser Part No
700-MAX31341CETB+T

Analog Devices / Maxim Integrated

Real Time Clock RTC with power management

Datasheet

3,876In Stock

Cut Tape

$2.61

$1.95

$1.78

$1.60

Reel

$1.36

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

64 B

TDFN-10

Backup Switching

1.6 V

3.6 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 5ppm, I2C Real-Time Clock with Integrated MEMS Oscillator

MAX31343ETAY+
Analog Devices / Maxim Integrated
1: $6.39
504In Stock

Mfr. Part No.
MAX31343ETAY+

Mouser Part No
700-MAX31343ETAY+

Analog Devices / Maxim Integrated

Real Time Clock 5ppm, I2C Real-Time Clock with Integrated MEMS Oscillator

Datasheet

504In Stock

$6.39

$4.92

$4.55

$4.14

View

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

64 B

TDFN-8

Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tray

Real Time Clock 5ppm, I2C Real-Time Clock with Integrated MEMS Oscillator

MAX31343ETAY+T
Analog Devices / Maxim Integrated
1: $6.39
2,824In Stock

Mfr. Part No.
MAX31343ETAY+T

Mouser Part No
700-MAX31343ETAY+T

Analog Devices / Maxim Integrated

Real Time Clock 5ppm, I2C Real-Time Clock with Integrated MEMS Oscillator

Datasheet

2,824In Stock

Cut Tape

$6.39

$4.92

$4.55

$4.14

View

Reel

$3.62

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

64 B

TDFN-8

Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape, MouseReel

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