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Reel Real Time Clock

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Part #

Real Time Clock 2-Wire Real Time Clock IC

R2051L01-E2
Nisshinbo
1: $1.60
79In Stock

Mfr. Part No.
R2051L01-E2

Mouser Part No
848-R2051L01-E2

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

Datasheet

79In Stock

Cut Tape

$1.60

$1.17

$1.07

$0.98

Reel

$0.776

View

MouseReel Available

Min.: 1
Mult.: 1

: 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, Cut Tape, MouseReel

Real Time Clock Real Time Clock MSOP-8 T&R 2.5K

PT7C433833AUEX
Diodes Incorporated
1: $1.48
2,103In Stock
Factory Special Order

Mfr. Part No.
PT7C433833AUEX

Mouser Part No
729-PT7C433833AUEX

Factory Special Order

Diodes Incorporated

Real Time Clock Real Time Clock MSOP-8 T&R 2.5K

Learn More

Datasheet

2,103In Stock

Cut Tape

$1.48

$1.08

$0.984

$0.873

Reel

View

Min.: 1
Mult.: 1

: 2,500

Serial 2-Wire, I2C

YY-MM-DD-dd

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

56 B

Backup Switching

2.7 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape

Real Time Clock RX4901CE XS D0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR

RX4901CE XS D06
Epson Timing
1: $5.93
1,922In Stock

Mfr. Part No.
RX4901CE XS D06

Mouser Part No
732-RX4901CEXSD06

Epson Timing

Real Time Clock RX4901CE XS D0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR

Learn More

Datasheet

1,922In Stock

Cut Tape

$5.93

$4.54

$4.18

$3.80

Reel

$3.26

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

256 B

Backup Switching

1.6 V

5.5 V

- 40 C

+ 105 C

RX4901CE

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock Low Power High Stability 5 ppm -40 +85 C I C Real Time Clock 3.2 x 2.5 mm

ECS-RTC-3225-5699HS-TR
ECS
1: $5.68
783In Stock

Mfr. Part No.
ECS-RTC-3225-5699HS-TR

Mouser Part No
520-RTC-32255699HSTR

ECS

Real Time Clock Low Power High Stability 5 ppm -40 +85 C I C Real Time Clock 3.2 x 2.5 mm

Learn More

Datasheet

783In Stock

Cut Tape

$5.68

$4.33

$3.99

$3.62

Reel

$3.27

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

I2C

YY-MM-DD

HH:MM:SS (24 hr)

Backup Switching

1.6 V

5 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock Low-Current I C RTCs for High-ESR Crystals

DS1341T+T&R
Analog Devices / Maxim Integrated
1: $4.55
156In Stock

Mfr. Part No.
DS1341T+T&R

Mouser Part No
700-DS1341T+T&R

Analog Devices / Maxim Integrated

Real Time Clock Low-Current I C RTCs for High-ESR Crystals

Learn More

Datasheet

156In Stock

Cut Tape

$4.55

$3.44

$3.16

$2.86

Reel

$2.86

MouseReel Available

Min.: 1
Mult.: 1
Max.: 156

: 2,500

Serial 2-Wire, I2C

YY-MM-DD-dd

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

TDFN-EP-8

No Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

DS1341T

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock RX-4045SA:AA0 PURE SN 5+/-5PPM 1K T/R

RX-4045SAAA0 PURE SN
Epson Timing
1: $4.70
1,516In Stock

Mfr. Part No.
RX-4045SAAA0 PURE SN

Mouser Part No
732-R4045SAAA0PURESN

Epson Timing

Real Time Clock RX-4045SA:AA0 PURE SN 5+/-5PPM 1K T/R

Learn More

Datasheet

1,516In Stock

Cut Tape

$4.70

$3.56

$3.27

$2.97

Reel

$2.72

View

Min.: 1
Mult.: 1

: 1,000

Serial 4-Wire

YY-MM-DD-dd

HH:MM:SS (24 hr)

No Backup Switching

1.7 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape

Real Time Clock RX-4045SA:AA3 PURE SN 5+/-5PPM 250 T/R

RX-4045SAAA3 PURE SN
Epson Timing
1: $9.57
915In Stock

Mfr. Part No.
RX-4045SAAA3 PURE SN

Mouser Part No
732-RX-4045SA:AA3S

Epson Timing

Real Time Clock RX-4045SA:AA3 PURE SN 5+/-5PPM 250 T/R

Datasheet

915In Stock

Cut Tape

$9.57

$7.45

$6.34

$5.91

Reel

$5.64

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Serial 4-Wire

YY-MM-DD-dd

HH:MM:SS (24 hr)

SOP-14

No Backup Switching

1.7 V

5.5 V

- 40 C

+ 85 C

RX-4045SA

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock REAL TIME CLOCK 3.0V 5+/-23PPM 1K TR

RX6110SA:B0 PURE SN
Epson Timing
1: $1.63
1,399In Stock

Mfr. Part No.
RX6110SA:B0 PURE SN

Mouser Part No
732-RX6110SAB0PURESN

Epson Timing

Real Time Clock REAL TIME CLOCK 3.0V 5+/-23PPM 1K TR

Datasheet

1,399In Stock

Cut Tape

$1.63

$1.33

$1.26

$1.19

$1.17

Reel

$1.17

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Serial, I2C, SPI

YY-MM-DD-dd

HH:MM:SS (24 hr)

16 B

Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

RX6110SA

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 32.768kHz 5ppm I2C-Bus

RX8130CE B0
Epson Timing
1: $1.40
6,784In Stock
16,000Expected 2026/11/03

Mfr. Part No.
RX8130CE B0

Mouser Part No
732-RX8130CEB0

Epson Timing

Real Time Clock 32.768kHz 5ppm I2C-Bus

Datasheet

6,784In Stock

16,000Expected 2026/11/03

Cut Tape

$1.40

$1.00

$0.932

$0.826

Reel

$0.719

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

Backup Switching

1.25 V

5.5 V

- 40 C

+ 85 C

RX8130CE

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN 1K T/R

RX8900CE:UB0
Epson Timing
1: $2.90
1,336In Stock

Mfr. Part No.
RX8900CE:UB0

Mouser Part No
732-RX8900CE:UB0

Epson Timing

Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN 1K T/R

Learn More

Datasheet

1,336In Stock

Cut Tape

$2.90

$2.16

$1.98

$1.78

Reel

$1.57

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

Backup Switching

2.5 V

5.5 V

- 40 C

+ 85 C

RX8900CE

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus

RX8900CE UA3
Epson Timing
1: $9.78
914In Stock

Mfr. Part No.
RX8900CE UA3

Mouser Part No
732-RX8900CEUA3

Epson Timing

Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus

Learn More

Datasheet

Product Comments

914In Stock

Cut Tape

$9.78

$7.62

$7.07

$6.47

Reel

$6.14

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

Backup Switching

2.5 V

5.5 V

- 40 C

+ 85 C

RX8900CE

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock Clock VCXO

PT7C433833AZEEX
Diodes Incorporated
1: $1.47
1,477In Stock
Factory Special Order

Mfr. Part No.
PT7C433833AZEEX

Mouser Part No
729-PT7C433833AZEEX

Factory Special Order

Diodes Incorporated

Real Time Clock Clock VCXO

Learn More

Datasheet

1,477In Stock

Cut Tape

$1.47

$1.06

$0.958

$0.847

Reel

View

Min.: 1
Mult.: 1

: 3,000

I2C

YY-MM-DD-dd

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

56 B

TDFN-8

Backup Switching

2.7 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape

Real Time Clock Real Time Clock

PT7C4363BWEX
Diodes Incorporated
1: $1.23
1,769In Stock
Factory Special Order

Mfr. Part No.
PT7C4363BWEX

Mouser Part No
729-PT7C4363BWEX

Factory Special Order

Diodes Incorporated

Real Time Clock Real Time Clock

Learn More

Datasheet

1,769In Stock

Cut Tape

$1.23

$0.885

$0.801

$0.707

Reel

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SOIC-8

No Backup Switching

1.3 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock RX4901CE XB D0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-5ppm 2k TR

RX4901CE XB D06
Epson Timing
1: $4.51
238In Stock

Mfr. Part No.
RX4901CE XB D06

Mouser Part No
732-RX4901CEXBD06

Epson Timing

Real Time Clock RX4901CE XB D0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-5ppm 2k TR

Learn More

Datasheet

238In Stock

Cut Tape

$4.51

$3.41

$3.13

$2.83

Reel

$2.36

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

256 B

Backup Switching

1.6 V

5.5 V

- 40 C

+ 105 C

RX4901CE

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock I2C Bus 5 +/-23ppm

RX-8025SA:AA0
Epson Timing
1: $4.16
30In Stock
1,000Expected 2026/10/05

Mfr. Part No.
RX-8025SA:AA0

Mouser Part No
732-RX-8025SA:AA0

Epson Timing

Real Time Clock I2C Bus 5 +/-23ppm

Learn More

Datasheet

30In Stock

1,000Expected 2026/10/05

Cut Tape

$4.16

$3.15

$2.90

$2.59

View

Reel

$2.34

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SOP-14

No Backup Switching

1.7 V

5.5 V

- 40 C

+ 85 C

RX-8025SA

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 32.768KHz 3.0Volts 5+/-5ppm -40C +85C

RX-8025SA:AA3
Epson Timing
1: $8.61
29In Stock
500Expected 2026/11/10

Mfr. Part No.
RX-8025SA:AA3

Mouser Part No
732-RX-8025SA:AA3

Epson Timing

Real Time Clock 32.768KHz 3.0Volts 5+/-5ppm -40C +85C

Learn More

Datasheet

29In Stock

500Expected 2026/11/10

Cut Tape

$8.61

$6.68

$6.19

$5.18

Reel

$4.94

MouseReel Available

Min.: 1
Mult.: 1

: 250

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SOP-14

No Backup Switching

1.7 V

5.5 V

- 40 C

+ 85 C

RX-8025SA

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock REAL TIME CLOCK 0+/-5PPM (SOP 14 PIN) 1K TR

RX-8025SA:AC0
Epson Timing
1: $4.14
439In Stock

Mfr. Part No.
RX-8025SA:AC0

Mouser Part No
732-RX-8025SA:AC0

Epson Timing

Real Time Clock REAL TIME CLOCK 0+/-5PPM (SOP 14 PIN) 1K TR

Learn More

Datasheet

439In Stock

Cut Tape

$4.14

$3.12

$2.87

$2.35

Reel

$2.29

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

No Backup Switching

1.7 V

5.5 V

- 40 C

+ 85 C

RX-8025SA

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 3.0Volt -40 to 85C I2C BUS

RX-8035SA:B3 PURE SN
Epson Timing
1: $7.20
216In Stock

Mfr. Part No.
RX-8035SA:B3 PURE SN

Mouser Part No
732-RX-8035SA:B3

Epson Timing

Real Time Clock 3.0Volt -40 to 85C I2C BUS

Datasheet

216In Stock

Cut Tape

$7.20

$5.54

$5.11

$4.66

Reel

$4.43

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SOP-14

Backup Switching

2.4 V

5.5 V

- 40 C

+ 85 C

RX-8035SA

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock I2C-BUS RTC +/-5.0PPM-30 70C SOP-14 PIN 250TR

RX-8803SA:UB3 PURE SN
Epson Timing
1: $4.58
1In Stock
1,000Expected 2026/08/25

Mfr. Part No.
RX-8803SA:UB3 PURE SN

Mouser Part No
732-RX-8803SAUB3

Epson Timing

Real Time Clock I2C-BUS RTC +/-5.0PPM-30 70C SOP-14 PIN 250TR

Datasheet

1In Stock

1,000Expected 2026/08/25

Cut Tape

$4.58

$3.45

$3.17

$2.86

Reel

$2.81

View

Min.: 1
Mult.: 1

: 250

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SOP-14

No Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

RX-8803SA

SMD/SMT

Reel, Cut Tape

Real Time Clock RX4111CE:B6 REAL TIME CLOCK SPI-BUS 3.0V 23PPM 2K TR

RX4111CE B6
Epson Timing
1: $1.93
1,308In Stock
4,000Expected 2026/12/14

Mfr. Part No.
RX4111CE B6

Mouser Part No
732-RX4111CEB6

Epson Timing

Real Time Clock RX4111CE:B6 REAL TIME CLOCK SPI-BUS 3.0V 23PPM 2K TR

Learn More

Datasheet

1,308In Stock

4,000Expected 2026/12/14

Cut Tape

$1.93

$1.42

$1.29

$1.15

Reel

$0.972

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Serial 4-Wire, SPI

Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

RTC

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock RX4901CE XB C0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-5ppm 2k TR

RX4901CE XB C06
Epson Timing
1: $4.50
16In Stock

Mfr. Part No.
RX4901CE XB C06

Mouser Part No
732-RX4901CEXBC06

Epson Timing

Real Time Clock RX4901CE XB C0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-5ppm 2k TR

Learn More

Datasheet

16In Stock

Cut Tape

$4.50

$3.40

$3.12

$2.83

Reel

$2.43

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

256 B

Backup Switching

1.6 V

5.5 V

- 40 C

+ 105 C

RX4901CE

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock RX8111CE:A3 REAL TIME CLOCK I2C-BUS 3.0V 11.5PPM 250TR

RX8111CE A3
Epson Timing
1: $4.04
420In Stock

Mfr. Part No.
RX8111CE A3

Mouser Part No
732-RX8111CEA3

Epson Timing

Real Time Clock RX8111CE:A3 REAL TIME CLOCK I2C-BUS 3.0V 11.5PPM 250TR

Learn More

Datasheet

420In Stock

Cut Tape

$4.04

$3.14

$2.88

$2.61

Reel

$2.47

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

RX8111CE

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 32.768kHz 5ppm I2C-Bus

RX8130CE B3
Epson Timing
1: $2.83
97In Stock
4,500On Order

Mfr. Part No.
RX8130CE B3

Mouser Part No
732-RX8130CEB3

Epson Timing

Real Time Clock 32.768kHz 5ppm I2C-Bus

Datasheet

Product Comments

97In Stock

4,500On Order

Cut Tape

$2.83

$2.11

$1.93

$1.73

Reel

$1.65

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

Backup Switching

1.25 V

5.5 V

- 40 C

+ 85 C

RX8130CE

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock RX8130CE:B6 REAL TIME CLOCK +/-23PPM 2K TR

RX8130CE B6
Epson Timing
1: $1.40
218In Stock
92,000On Order

Mfr. Part No.
RX8130CE B6

Mouser Part No
732-RX8130CEB6

Epson Timing

Real Time Clock RX8130CE:B6 REAL TIME CLOCK +/-23PPM 2K TR

Datasheet

218In Stock

92,000On Order

Cut Tape

$1.40

$1.00

$0.905

$0.80

Reel

$0.658

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

Backup Switching

1.25 V

5.5 V

- 40 C

+ 85 C

RX8130CE

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 5+/-23PPM REAL TIME CLOCK 1K TR

RX-8571SA:B0 PURE SN
Epson Timing
1: $3.12
212In Stock

Mfr. Part No.
RX-8571SA:B0 PURE SN

Mouser Part No
732-RX8571SAB0PURESN

Epson Timing

Real Time Clock 5+/-23PPM REAL TIME CLOCK 1K TR

Learn More

Datasheet

212In Stock

Cut Tape

$3.12

$2.40

$2.21

$2.01

Reel

$1.76

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

16 B

No Backup Switching

1.6 V

5.5 V

- 40 C

+ 85 C

RX-8571SA

SMD/SMT

Reel, Cut Tape, MouseReel

Reel Real Time Clock

Customer Service Office

Company

Resources

Support

2 B
3 B
4 B
7 B
8 B
10 B
16 B
20 B
31 B
32 B
56 B
64 B
96 B
114 B
128 B
160 B
236 B
242 B
256 B
512 B

3.2 mm x 2.5 mm x 1 mm
DFN-16
DFN-20
DFN2626-10
DFN-8
HWSON-8
LGA-10
MSOP-10
MSOP-8
PLCC-28
QFN0202-18
QFN023023-16
QFN-16
QFN1818-12
SMD-10
SNT-A-8
SO-16
SO-20
SO-24
SO-28

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
2.3 V
2.38 V
2.4 V
2.5 V
2.7 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
BQ32000
BQ32002
DP8570A
DP8573A
DS12885S
DS12885SN