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

Interface IC's Real Time Clock

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

Results: 53

Applied Filters:

Manufacturer

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

Qualification

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 3-Wire Real Time Clock IC

R2033T-E2-F
Nisshinbo
1: CHF 1.20
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

CHF 1.20

CHF 0.877

CHF 0.795

CHF 0.705

Reel

CHF 0.574

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 RTC IC with 400 kHz I2C interface featuring 64 byte SRAM in HXSON10 package.

PCF85363ATL/AX
NXP Semiconductors
1: CHF 1.07
82’504In Stock

Mfr. Part No.
PCF85363ATL/AX

Mouser Part No
771-PCF85363ATL/AX

NXP Semiconductors

Real Time Clock RTC IC with 400 kHz I2C interface featuring 64 byte SRAM in HXSON10 package.

Datasheet

82’504In Stock

Cut Tape

CHF 1.07

CHF 0.845

CHF 0.782

CHF 0.719

View

Reel

CHF 0.60

MouseReel Available

Min.: 1
Mult.: 1

: 4’000

Serial 2-Wire, I2C

YY-MM-DD-dd

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

64 B

DFN2626-10

Backup Switching

900 mV

5.5 V

- 40 C

+ 85 C

PCF85363A

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 4-wire Serial Interface

RV5C348B-E2-F
Nisshinbo
1: CHF 1.32
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

CHF 1.32

CHF 0.964

CHF 0.877

CHF 0.773

Reel

CHF 0.646

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 2-Wire Real Time Clock IC

R2051L02-E2
Nisshinbo
1: CHF 1.29
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

CHF 1.29

CHF 0.945

CHF 0.861

CHF 0.76

Reel

CHF 0.607

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

R2023T-E2-F
Nisshinbo
1: CHF 1.20
3’003In Stock
2’000On Order

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

2’000On Order

Cut Tape

CHF 1.20

CHF 0.877

CHF 0.795

CHF 0.705

Reel

CHF 0.646

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 Module

R2045S-E2-FE
Nisshinbo
1: CHF 3.80
3’941In 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

3’941In Stock

Cut Tape

CHF 3.80

CHF 2.87

CHF 2.64

CHF 2.39

Reel

CHF 2.04

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

R2223T-E2-F
Nisshinbo
1: CHF 1.34
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

CHF 1.34

CHF 0.983

CHF 0.885

CHF 0.786

Reel

CHF 0.613

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 Real Time Clock IC

RV5C348A-E2-F
Nisshinbo
1: CHF 1.32
1’748In Stock

Mfr. Part No.
RV5C348A-E2-F

Mouser Part No
848-RV5C348AE2F

Nisshinbo

Real Time Clock 4-Wire Real Time Clock IC

Datasheet

1’748In Stock

Cut Tape

CHF 1.32

CHF 0.964

CHF 0.877

CHF 0.773

Reel

CHF 0.646

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 RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in HXSON10 package.

PCF85263ATL/AX
NXP Semiconductors
1: CHF 1.07
49’826In Stock

Mfr. Part No.
PCF85263ATL/AX

Mouser Part No
771-PCF85263ATL/AX

NXP Semiconductors

Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in HXSON10 package.

Learn More

Datasheet

49’826In Stock

Cut Tape

CHF 1.07

CHF 0.768

CHF 0.695

CHF 0.615

View

Reel

CHF 0.501

MouseReel Available

Min.: 1
Mult.: 1

: 4’000

Serial 2-Wire, I2C

YY-MM-DD-dd

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

DFN2626-10

Backup Switching

900 mV

5.5 V

- 40 C

+ 85 C

PCF85263A

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock RTC IC with 400 kHz I2C interface in TSSOP8 package.

PCF85063ATT/AJ
NXP Semiconductors
1: CHF 0.781
15’251In Stock
15’000Expected 3/29/2027

Mfr. Part No.
PCF85063ATT/AJ

Mouser Part No
771-PCF85063ATT/AJ

NXP Semiconductors

Real Time Clock RTC IC with 400 kHz I2C interface in TSSOP8 package.

Learn More

Datasheet

15’251In Stock

15’000Expected 3/29/2027

Cut Tape

CHF 0.781

CHF 0.559

CHF 0.491

CHF 0.43

Reel

CHF 0.356

View

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

I2C

YY-MM-DD-dd

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

TSSOP-8

No Backup Switching

900 mV

5.5 V

- 40 C

+ 85 C

PCF85063A

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 2-Wire Real Time Clock IC

R2223L-E2
Nisshinbo
1: CHF 1.33
5’351In Stock

Mfr. Part No.
R2223L-E2

Mouser Part No
848-R2223L-E2

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

5’351In Stock

Cut Tape

CHF 1.33

CHF 0.973

CHF 0.877

CHF 0.773

Reel

CHF 0.646

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 RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in SO8 package.

PCF85263AT/AJ
NXP Semiconductors
1: CHF 1.10
164’895In Stock

Mfr. Part No.
PCF85263AT/AJ

Mouser Part No
771-PCF85263AT/AJ

NXP Semiconductors

Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in SO8 package.

Learn More

Datasheet

164’895In Stock

Cut Tape

CHF 1.10

CHF 0.813

CHF 0.721

CHF 0.638

Reel

CHF 0.541

View

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

Serial 2-Wire, I2C

YY-MM-DD-dd

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

SO-8

Backup Switching

900 mV

5.5 V

- 40 C

+ 85 C

PCF85263A

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock RTC IC with 400 kHz I2C interface in HXSON10 package.

PCF85063ATL/1,118
NXP Semiconductors
1: CHF 0.70
19’195In Stock

Mfr. Part No.
PCF85063ATL/1,118

Mouser Part No
771-PCF85063ATL1118

NXP Semiconductors

Real Time Clock RTC IC with 400 kHz I2C interface in HXSON10 package.

Learn More

Datasheet

19’195In Stock

Cut Tape

CHF 0.70

CHF 0.492

CHF 0.442

CHF 0.387

View

Reel

CHF 0.307

MouseReel Available

Min.: 1
Mult.: 1

: 4’000

I2C

YY-MM-DD-dd

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

DFN2626-10

No Backup Switching

900 mV

5.5 V

- 40 C

+ 85 C

PCF85063A

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock RTC IC with 400 kHz I2C interface in SO8 package.

PCF8563T/5,518
NXP Semiconductors
1: CHF 0.973
18’560In Stock

Mfr. Part No.
PCF8563T/5,518

Mouser Part No
771-PCF8563T/5518

NXP Semiconductors

Real Time Clock RTC IC with 400 kHz I2C interface in SO8 package.

Datasheet

18’560In Stock

Cut Tape

CHF 0.973

CHF 0.739

CHF 0.669

CHF 0.591

Reel

CHF 0.492

View

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SOIC-8

No Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

PCF8563

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock RTC IC with 400 kHz I2C interface in TSSOP8 package.

PCF8563TS/5,118
NXP Semiconductors
1: CHF 1.41
3’784In Stock
7’500Expected 11/16/2026

Mfr. Part No.
PCF8563TS/5,118

Mouser Part No
771-PCF8563TS/5118

NXP Semiconductors

Real Time Clock RTC IC with 400 kHz I2C interface in TSSOP8 package.

Datasheet

3’784In Stock

7’500Expected 11/16/2026

Cut Tape

CHF 1.41

CHF 1.03

CHF 0.934

CHF 0.829

Reel

CHF 0.688

View

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

TSSOP-8

No Backup Switching

1 V

5.5 V

- 40 C

+ 85 C

PCF8563

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock RTC IC with 400 kHz SPI Interface in HXSON10 package.

PCF85063BTL/1,118
NXP Semiconductors
1: CHF 0.644
5’387In Stock

Mfr. Part No.
PCF85063BTL/1,118

Mouser Part No
771-PCF85063BTL1118

NXP Semiconductors

Real Time Clock RTC IC with 400 kHz SPI Interface in HXSON10 package.

Learn More

Datasheet

5’387In Stock

Cut Tape

CHF 0.644

CHF 0.466

CHF 0.423

CHF 0.386

View

Reel

CHF 0.307

MouseReel Available

Min.: 1
Mult.: 1

: 4’000

SPI

YY-MM-DD-dd

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

DFN2626-10

No Backup Switching

900 mV

5.5 V

- 40 C

+ 85 C

PCF85063B

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 4-Wire Real Time Clock IC

R2043T-E2-F
Nisshinbo
1: CHF 1.22
2’316In Stock

Mfr. Part No.
R2043T-E2-F

Mouser Part No
848-R2043TE2F

Nisshinbo

Real Time Clock 4-Wire Real Time Clock IC

Datasheet

2’316In Stock

Cut Tape

CHF 1.22

CHF 0.885

CHF 0.795

CHF 0.705

Reel

CHF 0.596

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 RTC IC with 400 kHz I2C interface in HWSON8 package.

PCF85063TP/1Z
NXP Semiconductors
1: CHF 0.765
140In Stock
76’000Expected 4/12/2027

Mfr. Part No.
PCF85063TP/1Z

Mouser Part No
771-PCF85063TP/1Z

NXP Semiconductors

Real Time Clock RTC IC with 400 kHz I2C interface in HWSON8 package.

Datasheet

140In Stock

76’000Expected 4/12/2027

Cut Tape

CHF 0.765

CHF 0.548

CHF 0.486

CHF 0.426

View

Reel

CHF 0.346

MouseReel Available

Min.: 1
Mult.: 1

: 4’000

I2C

YY-MM-DD-dd

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

HWSON-8

No Backup Switching

900 mV

5.5 V

- 40 C

+ 85 C

PCF85063TP

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in TSSOP8 package.

PCF85263ATT/AJ
NXP Semiconductors
1: CHF 1.12
12’619In Stock
40’000On Order

Mfr. Part No.
PCF85263ATT/AJ

Mouser Part No
771-PCF85263ATT/AJ

NXP Semiconductors

Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in TSSOP8 package.

Learn More

Datasheet

12’619In Stock

40’000On Order

Cut Tape

CHF 1.12

CHF 0.813

CHF 0.733

CHF 0.648

Reel

CHF 0.541

View

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

I2C

YY-MM-DD-dd

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

TSSOP-8

Backup Switching

900 mV

5.5 V

- 40 C

+ 85 C

PCF85263A

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 2-Wire Real Time Clock IC

R2051L01-E2
Nisshinbo
1: CHF 1.29
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

CHF 1.29

CHF 0.945

CHF 0.861

CHF 0.789

Reel

CHF 0.624

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 RTC Module with I2C or SPI interface featuring backup battery switch-over function in HLSON16 package.

PCF2131TFY
NXP Semiconductors
1: CHF 2.88
17’458In Stock
11’675Expected 8/26/2026

Mfr. Part No.
PCF2131TFY

Mouser Part No
771-PCF2131TFY

NXP Semiconductors

Real Time Clock RTC Module with I2C or SPI interface featuring backup battery switch-over function in HLSON16 package.

Learn More

Datasheet

17’458In Stock

11’675Expected 8/26/2026

Cut Tape

CHF 2.88

CHF 2.22

CHF 2.04

CHF 1.83

View

Reel

CHF 1.52

MouseReel Available

Min.: 1
Mult.: 1

: 4’000

Serial, I2C, SPI

YY-MM-DD-dd

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

Backup Switching

1.2 V

5.5 V

- 40 C

+ 85 C

PCF2131

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in TSSOP10 package.

PCF85263ATT1/AZ
NXP Semiconductors
1: CHF 1.17
5’742In Stock

Mfr. Part No.
PCF85263ATT1/AZ

Mouser Part No
771-PCF85263ATT1/AZ

NXP Semiconductors

Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in TSSOP10 package.

Learn More

Datasheet

5’742In Stock

Cut Tape

CHF 1.17

CHF 0.854

CHF 0.768

CHF 0.68

Reel

CHF 0.583

View

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

Serial 2-Wire, I2C

YY-MM-DD-dd

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

TSSOP-10

Backup Switching

900 mV

5.5 V

- 40 C

+ 85 C

PCF85263A

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock Real-Time Clock SPI interface with power management, -40 to +85 C, 16-pin QFN

AM1815AQ
Ambiq
1: CHF 0.639
625In Stock
3’000Expected 1/11/2027

Mfr. Part No.
AM1815AQ

Mouser Part No
222-AM1815AQ

Ambiq

Real Time Clock Real-Time Clock SPI interface with power management, -40 to +85 C, 16-pin QFN

Datasheet

625In Stock

3’000Expected 1/11/2027

CHF 0.639

Min.: 1
Mult.: 1

Artasie SPI w/ Power Management

Real Time Clock 2-Wire Real Time Clock IC

R2221T-E2-F
Nisshinbo
1: CHF 1.30
725In Stock
2’000On Order

Mfr. Part No.
R2221T-E2-F

Mouser Part No
848-R2221TE2F

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

Datasheet

725In Stock

2’000On Order

Cut Tape

CHF 1.30

CHF 0.945

CHF 0.861

CHF 0.76

Reel

CHF 0.643

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 RTC IC with 400 kHz I2C interface featuring 64 byte SRAM in TSSOP8 package.

PCF85363ATT/AJ
NXP Semiconductors
1: CHF 1.24
1’430In Stock
7’500Expected 10/6/2026

Mfr. Part No.
PCF85363ATT/AJ

Mouser Part No
771-PCF85363ATT/AJ

NXP Semiconductors

Real Time Clock RTC IC with 400 kHz I2C interface featuring 64 byte SRAM in TSSOP8 package.

Learn More

Datasheet

1’430In Stock

7’500Expected 10/6/2026

Cut Tape

CHF 1.24

CHF 0.91

CHF 0.821

CHF 0.728

Reel

CHF 0.607

View

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

I2C

YY-MM-DD-dd

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

64 B

TSSOP-8

Backup Switching

900 mV

5.5 V

- 40 C

+ 85 C

PCF85363A

SMD/SMT

Reel, Cut Tape, MouseReel

Interface IC's Real Time Clock

Customer Service Office

Company

Resources

Support

Artasie I2C
Artasie I2C w/ Power Management
Artasie SPI
Artasie SPI w/ Power Management
PCA2129
PCA2131
PCA85073A
PCF2131
PCF85053A
PCF85063A
PCF85063B
PCF85063TP
PCF85263A
PCF85363A
PCF8563
R2023L
R2023T
R2033T
R2043L
R2043T