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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: $110.54
22Expected 7/9/2026

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 7/9/2026

$110.54

$92.06

$86.66

$81.86

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: $64.48
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

$64.48

$63.66

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: $66.25
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

$66.25

$65.42

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: $94.25
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

$94.25

$77.85

$73.74

$72.81

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: $16.20
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

$16.20

$15.91

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: $75.37
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

$75.37

$74.42

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: $91.39
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

$91.39

$86.32

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: $113.06
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

$113.06

$110.08

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: $105.29
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

$105.29

$86.97

$82.39

$81.36

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: $124.39
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

$124.39

$103.59

$97.53

$92.11

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: $116.51
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

$116.51

$97.04

$91.35

$86.28

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: $109.33
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

$109.33

$91.05

$85.71

$80.96

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: $113.30
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

$113.30

$94.36

$88.84

$83.90

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: $12.72
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

$12.72

$9.85

$9.13

$8.35

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: $6.43
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

$6.43

$4.80

$4.05

$3.98

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: $5.29
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

$5.29

$3.96

$3.37

$3.26

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: $5.07
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

$5.07

$3.78

$3.45

$3.10

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: $9.63
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

$9.63

$7.38

$6.81

$6.20

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: $5.44
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

$5.44

$4.07

$3.45

$3.35

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: $4.79
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

$4.79

$3.48

$2.94

$2.86

View

Min.: 1
Mult.: 1

RX8111CE

Bulk

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

RX8130CE:BB
Epson Timing
1: $3.82
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

$3.82

$2.84

$2.38

$2.28

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: $16.63
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

$16.63

$13.02

$12.12

$11.12

$10.15

Min.: 1
Mult.: 1

RX8130CE

Bulk

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

RX8900CE:UAB
Epson Timing
1: $11.18
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

$11.18

$10.35

$8.83

Min.: 1
Mult.: 1

RX8900CE

Bulk

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

RX8900CE:UBB
Epson Timing
1: $7.64
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

$7.64

$5.90

$5.07

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: $11.41
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

$11.41

$8.84

$8.20

$7.49

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