.hide-partial { max-height: none; } .show-more { display: none; }

Nisshinbo Micro Devices Real Time Clock

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 31

Applied Filters:

Manufacturer = Nisshinbo Micro Devices

RTC Bus Interface

Date Format

Time Format

RTC Memory Size

Package/Case

Battery Backup Switching

Supply Voltage - Min

Supply Voltage - Max

Minimum Operating Temperature

Maximum Operating Temperature

Series

Mounting Style

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Real Time Clock 2-Wire Real Time Clock IC

RS5C372B-E2-F
Nisshinbo
1: $2.28
1,809In Stock

Mfr. Part No.
RS5C372B-E2-F

Mouser Part No
848-RS5C372B-E2-F

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

Datasheet

1,809In Stock

Cut Tape

$2.28

$1.67

$1.52

$1.34

Reel

$1.10

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)

16 B

SSOP-8

Backup Switching

2 V

6 V

- 40 C

+ 85 C

RS5C372

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 2-Wire Real Time Clock IC

R2023T-E2-F
Nisshinbo
1: $2.07
3,003In Stock
2,000Expected 5/8/2026

Mfr. Part No.
R2023T-E2-F

Mouser Part No
848-R2023TE2F

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

Datasheet

3,003In Stock

2,000Expected 5/8/2026

Cut Tape

$2.07

$1.52

$1.37

$1.22

Reel

$1.11

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)

TSSOP-10

No Backup Switching

1.7 V

5.5 V

- 40 C

+ 85 C

R2023T

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 4-Wire Real Time Clock IC

RV5C348A-E2-F
Nisshinbo
1: $2.28
1,839In Stock

Mfr. Part No.
RV5C348A-E2-F

Mouser Part No
848-RV5C348AE2F

Nisshinbo

Real Time Clock 4-Wire Real Time Clock IC

Datasheet

1,839In Stock

Cut Tape

$2.28

$1.67

$1.52

$1.34

Reel

$1.11

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Serial 4-Wire, SPI

YY-MM-DD-dd

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

SSOP-10

Backup Switching

2 V

5.5 V

- 40 C

+ 85 C

RV5C348

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 4-wire Real Time Clock Module

R2045S-E2-FE
Nisshinbo
1: $6.56
4,191In Stock

Mfr. Part No.
R2045S-E2-FE

Mouser Part No
848-R2045S-E2-FE

Nisshinbo

Real Time Clock 4-wire Real Time Clock Module

Datasheet

4,191In Stock

Cut Tape

$6.56

$4.96

$4.56

$4.11

Reel

$3.48

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Serial 4-Wire

YY-MM-DD-dd

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

No Backup Switching

1.7 V

5.5 V

- 40 C

+ 85 C

R2045S/D

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 2-Wire Real Time Clock IC

R2223L-E2
Nisshinbo
1: $2.28
12,021In Stock

Mfr. Part No.
R2223L-E2

Mouser Part No
848-R2223L-E2

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

12,021In Stock

Cut Tape

$2.28

$1.67

$1.52

$1.34

Reel

$1.07

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Serial 2-Wire, I2C

BCD

QFN1818-12

No Backup Switching

1.5 V

5.5 V

- 40 C

+ 85 C

R2223L

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 2-Wire Real Time Clock IC

R2051L02-E2
Nisshinbo
1: $2.24
3,620In Stock

Mfr. Part No.
R2051L02-E2

Mouser Part No
848-R2051L02-E2

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

Datasheet

3,620In Stock

Cut Tape

$2.24

$1.64

$1.49

$1.31

Reel

$1.05

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 2-Wire Real Time Clock IC

R2223T-E2-F
Nisshinbo
1: $2.31
1,680In Stock

Mfr. Part No.
R2223T-E2-F

Mouser Part No
848-R2223TE2F

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

1,680In Stock

Cut Tape

$2.31

$1.70

$1.53

$1.36

Reel

$1.06

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)

TSSOP-10

No Backup Switching

1.5 V

5.5 V

- 40 C

+ 85 C

R2223T

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 4-wire Serial Interface

RV5C348B-E2-F
Nisshinbo
1: $2.28
1,675In Stock

Mfr. Part No.
RV5C348B-E2-F

Mouser Part No
848-RV5C348B-E2-F

Nisshinbo

Real Time Clock 4-wire Serial Interface

Datasheet

1,675In Stock

Cut Tape

$2.28

$1.67

$1.52

$1.34

Reel

$1.11

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Serial 4-Wire

YY-MM-DD-dd

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

16 B

SSOP-10

Backup Switching

2 V

5.5 V

- 40 C

+ 85 C

RV5C348

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 3-Wire Real Time Clock IC

R2033T-E2-F
Nisshinbo
1: $2.07
1,989In Stock

Mfr. Part No.
R2033T-E2-F

Mouser Part No
848-R2033TE2F

Nisshinbo

Real Time Clock 3-Wire Real Time Clock IC

Datasheet

1,989In Stock

Cut Tape

$2.07

$1.52

$1.37

$1.22

Reel

$0.97

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Serial 3-Wire

YY-MM-DD-dd

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

TSSOP-10

No Backup Switching

1.7 V

5.5 V

- 40 C

+ 85 C

R2033T

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 2-Wire Real Time Clock IC

RV5C387A-E2-F
Nisshinbo
1: $2.28
8,957In Stock

Mfr. Part No.
RV5C387A-E2-F

Mouser Part No
848-RV5C387A-E2-F

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

Datasheet

8,957In Stock

Cut Tape

$2.28

$1.67

$1.52

$1.34

Reel

$1.12

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)

16 B

SSOP-10

No Backup Switching

2 V

5.5 V

- 40 C

+ 85 C

RV5C387

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 4-wire Serial Interface

RS5C348A-E2-F
Nisshinbo
1: $2.28
4,290In Stock
End of Life

Mfr. Part No.
RS5C348A-E2-F

Mouser Part No
848-RS5C348A-E2-F

End of Life

Nisshinbo

Real Time Clock 4-wire Serial Interface

Datasheet

4,290In Stock

Cut Tape

$2.28

$1.67

$1.52

$1.34

Reel

$1.17

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Serial 4-Wire

YY-MM-DD-dd

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

16 B

SSOP-10

Backup Switching

2 V

5.5 V

- 40 C

+ 85 C

RS5C348

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 4-Wire Real Time Clock IC

R2043T-E2-F
Nisshinbo
1: $2.10
1,543In Stock
2,000Expected 21/7/2026

Mfr. Part No.
R2043T-E2-F

Mouser Part No
848-R2043TE2F

Nisshinbo

Real Time Clock 4-Wire Real Time Clock IC

Datasheet

1,543In Stock

2,000Expected 21/7/2026

Cut Tape

$2.10

$1.53

$1.37

$1.22

Reel

$1.03

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Serial 4-Wire, SPI

YY-MM-DD-dd

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

TSSOP-10

No Backup Switching

1.7 V

5.5 V

- 40 C

+ 85 C

R2043T

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 2-Wire Real Time Clock IC

R2051S01-E2-F
Nisshinbo
1: $2.40
128In Stock
2,000Expected 21/7/2026

Mfr. Part No.
R2051S01-E2-F

Mouser Part No
848-R2051S01E2F

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

Datasheet

128In Stock

2,000Expected 21/7/2026

Cut Tape

$2.40

$1.77

$1.60

$1.42

Reel

$1.19

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-16

Backup Switching

750 mV

5.5 V

- 40 C

+ 85 C

R2051S

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 2-Wire Real Time Clock IC

R2051S02-E2-F
Nisshinbo
1: $2.40
681In Stock

Mfr. Part No.
R2051S02-E2-F

Mouser Part No
848-R2051S02E2F

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

Datasheet

681In Stock

Cut Tape

$2.40

$1.75

$1.60

$1.42

Reel

$1.16

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-16

Backup Switching

750 mV

5.5 V

- 40 C

+ 85 C

R2051S

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 2-Wire Real Time Clock IC

R2221T-E2-F
Nisshinbo
1: $2.25
725In Stock
2,000Expected 5/6/2026

Mfr. Part No.
R2221T-E2-F

Mouser Part No
848-R2221TE2F

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

Datasheet

725In Stock

2,000Expected 5/6/2026

Cut Tape

$2.25

$1.64

$1.49

$1.31

Reel

$1.11

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)

TSSOP-10

No Backup Switching

1.5 V

5.5 V

- 40 C

+ 85 C

R2221T

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 2-Wire Real Time Clock IC

RS5C372A-E2-F
Nisshinbo
1: $2.29
972In Stock
2,000Expected 21/7/2026

Mfr. Part No.
RS5C372A-E2-F

Mouser Part No
848-RS5C372AE2F

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

Learn More

Datasheet

972In Stock

2,000Expected 21/7/2026

Cut Tape

$2.29

$1.68

$1.52

$1.34

Reel

$1.13

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-8

Backup Switching

1.7 V

6 V

- 40 C

+ 85 C

RS5C372

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 2-Wire Real Time Clock IC

R2051L01-E2
Nisshinbo
1: $2.24
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

$2.24

$1.64

$1.49

$1.36

Reel

$1.05

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 Hi Prec I2C-Bus Real Time Clock Mod

R2025S-E2-FE
Nisshinbo
1: $6.23
2,498Expected 5/6/2026

Mfr. Part No.
R2025S-E2-FE

Mouser Part No
848-R2025S-E2-FE

Nisshinbo

Real Time Clock Hi Prec I2C-Bus Real Time Clock Mod

Learn More

Datasheet

2,498Expected 5/6/2026

Cut Tape

$6.23

$4.71

$4.34

$3.92

Reel

$3.46

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Serial 2-Wire, I2C

YY-MM-DD-dd

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

No Backup Switching

1.7 V

5.5 V

- 40 C

+ 85 C

R2025S/D

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 4-Wire Real Time Clock IC

R2043L-E2
Nisshinbo
3,000: $0.981
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

$0.981

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 High precision I2C-Bus Real-Time Clock Module

R2051S03-E2-F
Nisshinbo
2,000: $1.16
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

$1.16

$1.15

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
1: $2.24
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

Cut Tape

$2.24

$1.64

$1.49

$1.40

Reel

$1.05

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Serial 2-Wire, I2C

BCD

TSSOP-10

Backup Switching

750 mV

5.5 V

- 40 C

+ 85 C

R2051T

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 3-Wire Real Time Clock IC

R2061L01-E2
Nisshinbo
3,000: $1.06
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

$1.06

$1.03

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: $1.15
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

$1.15

$1.10

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: $1.02
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

$1.02

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: $1.02
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

$1.02

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

: 3,000

QFN023023-16

R2062L

Reel

Nisshinbo Micro Devices Real Time Clock

Customer Service Office

Company

Resources

Support

NJU6350
R2023L
R2023T
R2025S/D
R2033T
R2043L
R2043T
R2045S/D
R2051L
R2051S
R2051T
R2061L
R2061S
R2062L
R2221L
R2221T
R2223L
R2223T
R2262L
RS5C348