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

Microchip Technology Real Time Clock

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

Results: 104

Applied Filters:

Brand = Microchip Technology

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 I2C GP RTCC 1Kb EE 64B SRAM EUI-64

MCP79412-I/SN
Microchip Technology
1: S/4.40
4,117In Stock

Mfr. Part #
MCP79412-I/SN

Mouser Part #
579-MCP79412ISN

Microchip Technology

Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-64

Learn More

Datasheet

4,117In Stock

S/4.40

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

64 B

SOIC-8

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-64

MCP79412T-I/MNY
Microchip Technology
1: S/4.79
2,105In Stock

Mfr. Part #
MCP79412T-I/MNY

Mouser Part #
579-MCP79412TIMNY

Microchip Technology

Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-64

Learn More

Datasheet

2,105In Stock

Cut Tape

S/4.79

Reel

S/4.79

MouseReel Available

Min.: 1
Mult.: 1

: 3,300

I2C

YY-MM-DD-dd

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

64 B

TDFN-8

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-64

MCP79412T-I/SN
Microchip Technology
1: S/4.40
5,776In Stock

Mfr. Part #
MCP79412T-I/SN

Mouser Part #
579-MCP79412TISN

Microchip Technology

Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-64

Learn More

Datasheet

5,776In Stock

Cut Tape

S/4.40

Reel

S/4.40

MouseReel Available

Min.: 1
Mult.: 1

: 3,300

I2C

YY-MM-DD-dd

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

64 B

SOIC-8

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock SPI GP RTCC 1Kb EE 64B SRAM ID

MCP79510T-I/MS
Microchip Technology
1: S/5.02
5,338In Stock

Mfr. Part #
MCP79510T-I/MS

Mouser Part #
579-MCP79510T-I/MS

Microchip Technology

Real Time Clock SPI GP RTCC 1Kb EE 64B SRAM ID

Learn More

Datasheet

5,338In Stock

Cut Tape

S/5.02

Reel

S/5.02

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Serial, I2C, SPI

YY-MM-DD-dd

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

64 B

Backup Switching

1.8 V

3.6 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock SPI GP RTCC 1Kb EE 64B SRAM EUI-48

MCP79511T-I/MS
Microchip Technology
1: S/5.41
1,786In Stock

Mfr. Part #
MCP79511T-I/MS

Mouser Part #
579-MCP79511T-I/MS

Microchip Technology

Real Time Clock SPI GP RTCC 1Kb EE 64B SRAM EUI-48

Learn More

Datasheet

1,786In Stock

Cut Tape

S/5.41

Reel

S/5.41

Min.: 1
Mult.: 1

: 2,500

Serial, I2C, SPI

YY-MM-DD-dd

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

64 B

Backup Switching

1.8 V

3.6 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape

Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM EUI-64

MCP79522-I/MS
Microchip Technology
1: S/5.76
2,595In Stock

Mfr. Part #
MCP79522-I/MS

Mouser Part #
579-MCP79522-I/MS

Microchip Technology

Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM EUI-64

Learn More

Datasheet

2,595In Stock

S/5.76

Min.: 1
Mult.: 1

SPI

YY-MM-DD-dd

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

64 B

MSOP-10

Backup Switching

1.8 V

3.6 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock 1Kb EE 64B SRAM WD TED ID

MCP795W10-I/ST
Microchip Technology
1: S/7.05
1,715In Stock

Mfr. Part #
MCP795W10-I/ST

Mouser Part #
579-MCP795W10-I/ST

Microchip Technology

Real Time Clock 1Kb EE 64B SRAM WD TED ID

Learn More

Datasheet

1,715In Stock

S/7.05

Min.: 1
Mult.: 1

SPI

YY-MM-DD-dd

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

1 kB

TSSOP-14

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM ID

MCP79410T-I/MNY
Microchip Technology
1: S/4.40
1,607In Stock

Mfr. Part #
MCP79410T-I/MNY

Mouser Part #
579-MCP79410T-I/MNY

Microchip Technology

Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM ID

Learn More

Datasheet

1,607In Stock

Cut Tape

S/4.40

Reel

S/4.40

MouseReel Available

Min.: 1
Mult.: 1

: 3,300

I2C

YY-MM-DD-dd

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

64 B

TDFN-8

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48

MCP79411T-I/MS
Microchip Technology
1: S/4.59
4,804In Stock

Mfr. Part #
MCP79411T-I/MS

Mouser Part #
579-MCP79411TIMS

Microchip Technology

Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48

Learn More

Datasheet

4,804In Stock

Cut Tape

S/4.59

Reel

S/4.59

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

I2C

YY-MM-DD-dd

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

64 B

MSOP-8

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48

MCP79411T-I/SN
Microchip Technology
1: S/4.40
7,249In Stock

Mfr. Part #
MCP79411T-I/SN

Mouser Part #
579-MCP79411TISN

Microchip Technology

Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48

Learn More

Datasheet

7,249In Stock

Cut Tape

S/4.40

Reel

S/4.40

MouseReel Available

Min.: 1
Mult.: 1

: 3,300

I2C

YY-MM-DD-dd

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

64 B

SOIC-8

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM ID

MCP79520T-I/MS
Microchip Technology
1: S/5.41
2,798In Stock

Mfr. Part #
MCP79520T-I/MS

Mouser Part #
579-MCP79520T-I/MS

Microchip Technology

Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM ID

Learn More

Datasheet

2,798In Stock

Cut Tape

S/5.41

Reel

S/5.41

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Serial, I2C, SPI

YY-MM-DD-dd

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

64 B

Backup Switching

1.8 V

3.6 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock I2C GP RTCC 64B SRAM ID

MCP79400-I/ST
Microchip Technology
1: S/3.89
643In Stock

Mfr. Part #
MCP79400-I/ST

Mouser Part #
579-MCP79400IST

Microchip Technology

Real Time Clock I2C GP RTCC 64B SRAM ID

Learn More

Datasheet

643In Stock

S/3.89

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

64 B

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock I2C GP RTCC 64B SRAM ID

MCP79400T-I/SN
Microchip Technology
1: S/3.70
997In Stock
6,600Expected 10/12/2026

Mfr. Part #
MCP79400T-I/SN

Mouser Part #
579-MCP79400TISN

Microchip Technology

Real Time Clock I2C GP RTCC 64B SRAM ID

Learn More

Datasheet

997In Stock

6,600Expected 10/12/2026

Cut Tape

S/3.70

Reel

S/3.70

Min.: 1
Mult.: 1

: 3,300

Serial 2-Wire, I2C

YY-MM-DD-dd

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

64 B

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape

Real Time Clock I2C GP RTCC 64B SRAM EUI-48

MCP79401-I/ST
Microchip Technology
1: S/4.20
307In Stock

Mfr. Part #
MCP79401-I/ST

Mouser Part #
579-MCP79401IST

Microchip Technology

Real Time Clock I2C GP RTCC 64B SRAM EUI-48

Learn More

Datasheet

307In Stock

S/4.20

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

64 B

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock I2C GP RTCC 64B SRAM EUI-64

MCP79402-I/MS
Microchip Technology
1: S/4.20
752In Stock

Mfr. Part #
MCP79402-I/MS

Mouser Part #
579-MCP79402IMS

Microchip Technology

Real Time Clock I2C GP RTCC 64B SRAM EUI-64

Learn More

Datasheet

752In Stock

S/4.20

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

64 B

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock I2C GP RTCC 64B SRAM EUI-64

MCP79402-I/SN
Microchip Technology
1: S/4.05
1,056In Stock

Mfr. Part #
MCP79402-I/SN

Mouser Part #
579-MCP79402ISN

Microchip Technology

Real Time Clock I2C GP RTCC 64B SRAM EUI-64

Learn More

Datasheet

1,056In Stock

S/4.05

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

64 B

SOIC-8

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

MCP79402

SMD/SMT

Tube

Real Time Clock I2C RTCC 64B SRAM No VBAT

MCP7940M-I/P
Microchip Technology
1: S/2.88
690In Stock

Mfr. Part #
MCP7940M-I/P

Mouser Part #
579-MCP7940579-M-I/P

Microchip Technology

Real Time Clock I2C RTCC 64B SRAM No VBAT

Learn More

Datasheet

690In Stock

S/2.88

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

64 B

PDIP-8

No Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

Through Hole

Tube

Real Time Clock I2C RTCC 64B SRAM No VBAT

MCP7940M-I/MS
Microchip Technology
1: S/2.76
776In Stock

Mfr. Part #
MCP7940M-I/MS

Mouser Part #
579-MCP7940M-I/MS

Microchip Technology

Real Time Clock I2C RTCC 64B SRAM No VBAT

Learn More

Datasheet

776In Stock

S/2.76

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

64 B

MSOP-8

No Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock I2C RTCC 64B SRAM No VBAT

MCP7940M-I/SN
Microchip Technology
1: S/2.61
630In Stock

Mfr. Part #
MCP7940M-I/SN

Mouser Part #
579-MCP7940M-I/SN

Microchip Technology

Real Time Clock I2C RTCC 64B SRAM No VBAT

Learn More

Datasheet

630In Stock

S/2.61

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

64 B

SOIC-8

No Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock I2C RTCC 64B SRAM No VBAT

MCP7940MT-I/MS
Microchip Technology
1: S/2.76
1,912In Stock
5,000Expected 8/25/2026

Mfr. Part #
MCP7940MT-I/MS

Mouser Part #
579-MCP7940MT-I/MS

Microchip Technology

Real Time Clock I2C RTCC 64B SRAM No VBAT

Learn More

Datasheet

1,912In Stock

5,000Expected 8/25/2026

Cut Tape

S/2.76

Reel

S/2.76

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

I2C

YY-MM-DD-dd

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

64 B

MSOP-8

No Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock I2C RTCC 64B SRAM No VBAT

MCP7940MT-I/ST
Microchip Technology
1: S/2.76
215In Stock

Mfr. Part #
MCP7940MT-I/ST

Mouser Part #
579-MCP7940MT-I/ST

Microchip Technology

Real Time Clock I2C RTCC 64B SRAM No VBAT

Learn More

Datasheet

215In Stock

Cut Tape

S/2.76

Reel

S/2.76

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

No Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock I2C GP RTCC 64B SRAM, EXT

MCP7940N-E/MS
Microchip Technology
1: S/3.78
1,398In Stock

Mfr. Part #
MCP7940N-E/MS

Mouser Part #
579-MCP7940N-E/MS

Microchip Technology

Real Time Clock I2C GP RTCC 64B SRAM, EXT

Learn More

Datasheet

1,398In Stock

S/3.78

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

64 B

MSOP-8

Backup Switching

1.8 V

5.5 V

- 40 C

+ 125 C

SMD/SMT

Tube

Real Time Clock I2C GP RTCC 64B SRAM ExT SER EE, ExT

MCP7940N-E/SN
Microchip Technology
1: S/3.58
934In Stock

Mfr. Part #
MCP7940N-E/SN

Mouser Part #
579-MCP7940N-E/SN

Microchip Technology

Real Time Clock I2C GP RTCC 64B SRAM ExT SER EE, ExT

Learn More

Datasheet

934In Stock

S/3.58

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

64 B

SOIC-8

Backup Switching

1.8 V

5.5 V

- 40 C

+ 125 C

SMD/SMT

Tube

Real Time Clock I2C GP RTCC 64B SRAM

MCP7940N-I/MS
Microchip Technology
1: S/3.50
2,240In Stock

Mfr. Part #
MCP7940N-I/MS

Mouser Part #
579-MCP7940N-I/MS

Microchip Technology

Real Time Clock I2C GP RTCC 64B SRAM

Learn More

Datasheet

2,240In Stock

S/3.50

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

64 B

MSOP-8

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock I2C GP RTCC,64B SRAM

MCP7940N-I/P
Microchip Technology
1: S/3.58
612In Stock

Mfr. Part #
MCP7940N-I/P

Mouser Part #
579-MCP7940N-I/P

Microchip Technology

Real Time Clock I2C GP RTCC,64B SRAM

Learn More

Datasheet

612In Stock

S/3.58

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

64 B

PDIP-8

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

Through Hole

Tube

Microchip Technology Real Time Clock

Customer Service Office

Company

Resources

Support