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Real Time Clock

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Part #

Real Time Clock 4096k NV SRAM with Phantom Clock

DS1251WP-120+
Analog Devices / Maxim Integrated
1: £61.02
22Expected 03/09/2026

Mfr. Part No.
DS1251WP-120+

Mouser Part No
700-DS1251WP-120

Analog Devices / Maxim Integrated

Real Time Clock 4096k NV SRAM with Phantom Clock

Datasheet

22Expected 03/09/2026

£61.02

£50.82

£47.84

£45.19

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

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

512 kB

PowerCap Module-34

Backup Switching

2.97 V

3.63 V

0 C

+ 70 C

DS1251WP

SMD/SMT

Tray

Real Time Clock 256k NV SRAM with Phantom Clock

DS1244WP-120+
Analog Devices / Maxim Integrated
40: £35.59
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1244WP-120+

Mouser Part No
700-DS1244WP-120

Analog Devices / Maxim Integrated

Real Time Clock 256k NV SRAM with Phantom Clock

Datasheet

Non-Stocked Lead-Time 14 Weeks

£35.59

£35.15

Min.: 40
Mult.: 40

Parallel

YY-MM-DD-dd

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

32 kB

PowerCap Module-34

2.97 V

3.63 V

0 C

+ 70 C

DS1244WP

SMD/SMT

Tray

Real Time Clock 256k NV SRAM with Phantom Clock

DS1244YP-70+
Analog Devices / Maxim Integrated
40: £36.57
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1244YP-70+

Mouser Part No
700-DS1244YP-70

Analog Devices / Maxim Integrated

Real Time Clock 256k NV SRAM with Phantom Clock

Datasheet

Non-Stocked Lead-Time 14 Weeks

£36.57

£36.12

Min.: 40
Mult.: 40

Parallel

YY-MM-DD-dd

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

32 kB

PowerCap Module-34

4.5 V

5.5 V

0 C

+ 70 C

DS1244YP

SMD/SMT

Tray

Real Time Clock 1024k NV SRAM with Phantom Clock

DS1248YP-70+
Analog Devices / Maxim Integrated
1: £52.03
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1248YP-70+

Mouser Part No
700-DS1248YP-70

Analog Devices / Maxim Integrated

Real Time Clock 1024k NV SRAM with Phantom Clock

Datasheet

Non-Stocked Lead-Time 14 Weeks

£52.03

£42.98

£40.71

£40.19

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

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

128 kB

PowerCap Module-34

Backup Switching

4.5 V

5.5 V

0 C

+ 70 C

DS1248Y

SMD/SMT

Tray

Real Time Clock Real-Time Clocks

DS12885T+
Analog Devices / Maxim Integrated
250: £8.94
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS12885T+

Mouser Part No
700-DS12885T

Analog Devices / Maxim Integrated

Real Time Clock Real-Time Clocks

Datasheet

Non-Stocked Lead-Time 14 Weeks

£8.94

£8.78

Min.: 250
Mult.: 250

Multiplexed

YY-MM-DD-dd

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

114 B

TQFP-32

Backup Switching

4.5 V

5.5 V

0 C

+ 70 C

DS12885T

SMD/SMT

Tray

Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi

DS1556WP-120+
Analog Devices / Maxim Integrated
40: £41.61
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1556WP-120+

Mouser Part No
700-DS1556WP-120

Analog Devices / Maxim Integrated

Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi

Datasheet

Non-Stocked Lead-Time 14 Weeks

£41.61

£41.08

Min.: 40
Mult.: 40

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

128 kB

PowerCap Module-34

2.97 V

3.63 V

0 C

+ 70 C

DS1556WP

SMD/SMT

Tray

Real Time Clock 4Meg, Nonvolatile, Y2K-Compliant Timekee

DS1557P-70+
Analog Devices / Maxim Integrated
40: £50.45
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1557P-70+

Mouser Part No
700-DS1557P-70

Analog Devices / Maxim Integrated

Real Time Clock 4Meg, Nonvolatile, Y2K-Compliant Timekee

Datasheet

Non-Stocked Lead-Time 14 Weeks

£50.45

£47.65

Min.: 40
Mult.: 40

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

512 kB

PowerCap Module-34

Backup Switching

4.5 V

5.5 V

0 C

+ 70 C

DS1557P

SMD/SMT

Tray

Real Time Clock 4Meg, Nonvolatile, Y2K-Compliant Timekee

DS1557P-70IND+
Analog Devices / Maxim Integrated
40: £62.41
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1557P-70IND+

Mouser Part No
700-DS1557P-70IND

Analog Devices / Maxim Integrated

Real Time Clock 4Meg, Nonvolatile, Y2K-Compliant Timekee

Datasheet

Non-Stocked Lead-Time 14 Weeks

£62.41

£60.77

Min.: 40
Mult.: 40

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

512 kB

Backup Switching

4.5 V

5.5 V

- 40 C

+ 85 C

DS1557P

SMD/SMT

Tray

Real Time Clock 4Meg, Nonvolatile, Y2K-Compliant Timekee

DS1557WP-120+
Analog Devices / Maxim Integrated
1: £58.12
Lead-Time 14 Weeks

Mfr. Part No.
DS1557WP-120+

Mouser Part No
700-DS1557WP-120

Analog Devices / Maxim Integrated

Real Time Clock 4Meg, Nonvolatile, Y2K-Compliant Timekee

Datasheet

Lead-Time 14 Weeks

£58.12

£48.02

£45.48

£44.92

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

512 kB

PowerCap Module-34

Backup Switching

2.97 V

3.63 V

0 C

+ 70 C

DS1557WP

SMD/SMT

Tray

Real Time Clock 4Meg, Nonvolatile, Y2K-Compliant Timekee

DS1557WP-120IND+
Analog Devices / Maxim Integrated
1: £68.67
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1557WP-120IND+

Mouser Part No
700-DS1557WP-120IND

Analog Devices / Maxim Integrated

Real Time Clock 4Meg, Nonvolatile, Y2K-Compliant Timekee

Datasheet

Non-Stocked Lead-Time 14 Weeks

£68.67

£57.19

£53.84

£50.85

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

512 kB

PowerCap Module-34

Backup Switching

2.97 V

3.63 V

- 40 C

+ 85 C

DS1557WP

SMD/SMT

Tray

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

DS1747P-70IND+
Analog Devices / Maxim Integrated
1: £64.32
Lead-Time 14 Weeks

Mfr. Part No.
DS1747P-70IND+

Mouser Part No
700-DS1747P-70IND

Analog Devices / Maxim Integrated

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

Datasheet

Lead-Time 14 Weeks

£64.32

£53.57

£50.43

£47.63

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

512 kB

Backup Switching

4.5 V

5.5 V

- 40 C

+ 85 C

DS1747P

SMD/SMT

Tray

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

DS1747WP-120+
Analog Devices / Maxim Integrated
1: £60.36
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1747WP-120+

Mouser Part No
700-DS1747WP-120

Analog Devices / Maxim Integrated

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

Datasheet

Non-Stocked Lead-Time 14 Weeks

£60.36

£50.27

£47.32

£44.70

Min.: 1
Mult.: 1

Parallel

YYYY-MM-DD

HH:MM:SS (24 hr)

512 kB

PowerCap Module-34

2.97 V

3.63 V

0 C

+ 70 C

DS1747WP

Through Hole

Tray

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

DS1747WP-120IND+
Analog Devices / Maxim Integrated
1: £62.55
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1747WP-120IND+

Mouser Part No
700-DS1747WP-120IND

Analog Devices / Maxim Integrated

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

Datasheet

Non-Stocked Lead-Time 14 Weeks

£62.55

£52.09

£49.05

£46.31

Min.: 1
Mult.: 1

Parallel

HH:MM:SS (24 hr)

512 kB

PowerCap Module-34

2.97 V

3.63 V

- 40 C

+ 85 C

DS1747WP

SMD/SMT

Tray

Real Time Clock RX-4035SA:AAB PURE SN REAL TIME CLOCK 5+/-5PPM BULK - CUT TAPE

RX-4035SAAAB PURE SN
Epson Timing
1: £7.02
Non-Stocked Lead-Time 16 Weeks
New At Mouser

Mfr. Part No.
RX-4035SAAAB PURE SN

Mouser Part No
732-RX4035AAABPUREN

New At Mouser

Epson Timing

Real Time Clock RX-4035SA:AAB PURE SN REAL TIME CLOCK 5+/-5PPM BULK - CUT TAPE

Datasheet

Non-Stocked Lead-Time 16 Weeks

£7.02

£5.44

£5.04

£4.61

View

Min.: 1
Mult.: 1

RX-4035SA

Bulk

Real Time Clock RX4111CE:AB REAL TIME CLOCK SPI-BUS 3.0V 11.5PPM BULK

RX4111CE AB
Epson Timing
1: £3.55
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RX4111CE AB

Mouser Part No
732-RX4111CEAB

Epson Timing

Real Time Clock RX4111CE:AB REAL TIME CLOCK SPI-BUS 3.0V 11.5PPM BULK

Datasheet

Non-Stocked Lead-Time 16 Weeks

£3.55

£2.65

£2.23

£2.20

View

Min.: 1
Mult.: 1

RX4111CE

Bulk

Real Time Clock RX4111CE:BB REAL TIME CLOCK SPI-BUS 3.0V 23PPM BULK

RX4111CE BB
Epson Timing
1: £2.92
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
RX4111CE BB

Mouser Part No
732-RX4111CEBB

Epson Timing

Real Time Clock RX4111CE:BB REAL TIME CLOCK SPI-BUS 3.0V 23PPM BULK

Datasheet

Non-Stocked Lead-Time 16 Weeks

£2.92

£2.18

£1.86

£1.80

View

Min.: 1
Mult.: 1

RX4111CE

Bulk

Real Time Clock RX-4571SA:B PURE SN RTC SON 14PIN 5+/-23PPM BULK - CUT TAPE

RX-4571SA PURE SN
Epson Timing
1: £2.80
Non-Stocked Lead-Time 16 Weeks
New At Mouser

Mfr. Part No.
RX-4571SA PURE SN

Mouser Part No
732-RX4571SAPURESN

New At Mouser

Epson Timing

Real Time Clock RX-4571SA:B PURE SN RTC SON 14PIN 5+/-23PPM BULK - CUT TAPE

Datasheet

Non-Stocked Lead-Time 16 Weeks

£2.80

£2.09

£1.90

£1.71

View

Min.: 1
Mult.: 1

RX-4571NB

Bulk

Real Time Clock RX-8035SA:B PURE SN REAL TIME CLOCK 5+/-23PPM BULK - CUT TAPE

RX-8035SAB PURE SN
Epson Timing
1: £5.32
Non-Stocked Lead-Time 20 Weeks
New At Mouser

Mfr. Part No.
RX-8035SAB PURE SN

Mouser Part No
732-RX8035SABPURESN

New At Mouser

Epson Timing

Real Time Clock RX-8035SA:B PURE SN REAL TIME CLOCK 5+/-23PPM BULK - CUT TAPE

Datasheet

Non-Stocked Lead-Time 20 Weeks

£5.32

£4.08

£3.76

£3.42

View

Min.: 1
Mult.: 1

RX-8035SA

Bulk

Real Time Clock RX8111CE:AB REAL TIME CLOCK I2C-BUS 3.0V 11.5PPM BULK

RX8111CE AB
Epson Timing
1: £3.00
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
RX8111CE AB

Mouser Part No
732-RX8111CEAB

Epson Timing

Real Time Clock RX8111CE:AB REAL TIME CLOCK I2C-BUS 3.0V 11.5PPM BULK

Datasheet

Non-Stocked Lead-Time 20 Weeks

£3.00

£2.24

£1.90

£1.85

View

Min.: 1
Mult.: 1

RX8111CE

Bulk

Real Time Clock RX8111CE:BB REAL TIME CLOCK I2C-BUS 3.0V 23PPM BULK

RX8111CE BB
Epson Timing
1: £2.65
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
RX8111CE BB

Mouser Part No
732-RX8111CEBB

Epson Timing

Real Time Clock RX8111CE:BB REAL TIME CLOCK I2C-BUS 3.0V 23PPM BULK

Datasheet

Non-Stocked Lead-Time 20 Weeks

£2.65

£1.92

£1.62

£1.58

View

Min.: 1
Mult.: 1

RX8111CE

Bulk

Real Time Clock REAL TIME CLOCK +/-23PPM BULK

RX8130CE:BB
Epson Timing
1: £2.11
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
RX8130CE:BB

Mouser Part No
732-RX8130CE:BB

Epson Timing

Real Time Clock REAL TIME CLOCK +/-23PPM BULK

Datasheet

Non-Stocked Lead-Time 20 Weeks

£2.11

£1.57

£1.32

£1.26

View

Min.: 1
Mult.: 1

RX8130CE

Bulk

Real Time Clock RX-8564LC:B REAL TIME CLOCK Sn-Ag or Sn 5+/-23PPM BULK - CUT TAPE

RX-8564LCB PURE SN
Epson Timing
1: £9.18
Non-Stocked Lead-Time 26 Weeks
New At Mouser

Mfr. Part No.
RX-8564LCB PURE SN

Mouser Part No
732-RX8564LCBPURESN

New At Mouser

Epson Timing

Real Time Clock RX-8564LC:B REAL TIME CLOCK Sn-Ag or Sn 5+/-23PPM BULK - CUT TAPE

Datasheet

Non-Stocked Lead-Time 26 Weeks

£9.18

£7.18

£6.69

£6.14

£5.60

Min.: 1
Mult.: 1

RX8130CE

Bulk

Real Time Clock I2C-BUS RTC +/-3.4PPM-40 85C 10 PIN BULK

RX8900CE:UAB
Epson Timing
1: £6.17
Non-Stocked Lead-Time 30 Weeks

Mfr. Part No.
RX8900CE:UAB

Mouser Part No
732-RX8900CE:UAB

Epson Timing

Real Time Clock I2C-BUS RTC +/-3.4PPM-40 85C 10 PIN BULK

Learn More

Datasheet

Non-Stocked Lead-Time 30 Weeks

£6.17

£5.71

£4.87

Min.: 1
Mult.: 1

RX8900CE

Bulk

Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN BULK

RX8900CE:UBB
Epson Timing
1: £4.22
Non-Stocked Lead-Time 30 Weeks

Mfr. Part No.
RX8900CE:UBB

Mouser Part No
732-RX8900CE:UBB

Epson Timing

Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN BULK

Learn More

Datasheet

Non-Stocked Lead-Time 30 Weeks

£4.22

£3.26

£2.80

Min.: 1
Mult.: 1

RX8900CE

Bulk

Real Time Clock RX-4803SA:UB PURE SN RTC +/-5.0PPM-40 85C BULK - CUT TAPE

RX-4803SAUB PURE SN
Epson Timing
1: £6.30
Non-Stocked Lead-Time 20 Weeks
New At Mouser

Mfr. Part No.
RX-4803SAUB PURE SN

Mouser Part No
732-X4803SAUBPURESN

New At Mouser

Epson Timing

Real Time Clock RX-4803SA:UB PURE SN RTC +/-5.0PPM-40 85C BULK - CUT TAPE

Datasheet

Non-Stocked Lead-Time 20 Weeks

£6.30

£4.88

£4.53

£4.14

View

Min.: 1
Mult.: 1

RX-4803LC

Bulk

Real Time Clock

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DS1244WP
DS1244YP
DS1248WP
DS1248Y
DS1251WP
DS1251YP
DS12885T
DS1554P
DS1554WP
DS1556P
DS1556WP
DS1557P
DS1557WP
DS1558W
DS1558Y
DS1744P
DS1744WP
DS1746P
DS1746WP
DS1747P