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Part #

Real Time Clock 64K (8Kx8) 100ns

M48T08-100PC1
STMicroelectronics
1: HK$298.88
1,494In Stock

Mfr. Part No.
M48T08-100PC1

Mouser Part No
511-M48T0810PC1

STMicroelectronics

Real Time Clock 64K (8Kx8) 100ns

Datasheet

1,494In Stock

HK$298.88

HK$224.24

HK$213.88

HK$206.32

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

PCDIP-28

Integrated Battery

4.75 V

5.5 V

0 C

+ 70 C

M48T08

Through Hole

Tube

Real Time Clock 16K (2Kx8) 70ns

M48T12-70PC1
STMicroelectronics
1: HK$339.16
864In Stock

Mfr. Part No.
M48T12-70PC1

Mouser Part No
511-M48T1270PC1

STMicroelectronics

Real Time Clock 16K (2Kx8) 70ns

Datasheet

864In Stock

HK$339.16

HK$249.48

HK$239.45

HK$230.08

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

PCDIP-24

Integrated Battery

4.5 V

5.5 V

0 C

+ 70 C

M48T12

Through Hole

Tube

Real Time Clock 64K (8Kx8) 150ns

M48T18-150PC1
STMicroelectronics
1: HK$414.86
410In Stock

Mfr. Part No.
M48T18-150PC1

Mouser Part No
511-M48T1815PC1

STMicroelectronics

Real Time Clock 64K (8Kx8) 150ns

Datasheet

410In Stock

HK$414.86

HK$313.35

HK$299.62

HK$291.07

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

PCDIP-28

Integrated Battery

4.5 V

5.5 V

0 C

+ 70 C

M48T18

Through Hole

Tube

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

MCP79412-I/MS
Microchip Technology
1: HK$9.70
3,729In Stock

Mfr. Part No.
MCP79412-I/MS

Mouser Part No
579-MCP79412IMS

Microchip Technology

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

Learn More

Datasheet

3,729In Stock

HK$9.70

HK$9.45

HK$8.88

HK$8.47

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

MSOP-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

MCP79412-I/ST
Microchip Technology
1: HK$9.70
4,615In Stock

Mfr. Part No.
MCP79412-I/ST

Mouser Part No
579-MCP79412IST

Microchip Technology

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

Learn More

Datasheet

4,615In Stock

HK$9.70

HK$8.88

HK$8.47

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

TSSOP-8

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock I2C GP RTCC 64B SRAM ID

MCP79400-I/MS
Microchip Technology
1: HK$8.22
5,400In Stock

Mfr. Part No.
MCP79400-I/MS

Mouser Part No
579-MCP79400IMS

Microchip Technology

Real Time Clock I2C GP RTCC 64B SRAM ID

Learn More

Datasheet

5,400In Stock

HK$8.22

HK$7.65

HK$7.56

HK$7.15

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

MSOP-8

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock 2Kb EE 64B SRAM WD TED EUI-64

MCP795W22-I/ST
Microchip Technology
1: HK$16.28
5,150In Stock

Mfr. Part No.
MCP795W22-I/ST

Mouser Part No
579-MCP795W22-I/ST

Microchip Technology

Real Time Clock 2Kb EE 64B SRAM WD TED EUI-64

Learn More

Datasheet

5,150In Stock

HK$16.28

HK$15.12

HK$14.30

HK$14.22

Min.: 1
Mult.: 1

SPI

YY-MM-DD-dd

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

TSSOP-14

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock REAL TIME CLK & TEMP COMPENSATED CRYSTAL

ISL12022MIBZ
Renesas / Intersil
1: HK$61.40
358In Stock

Mfr. Part No.
ISL12022MIBZ

Mouser Part No
968-ISL12022MIBZ

Renesas / Intersil

Real Time Clock REAL TIME CLK & TEMP COMPENSATED CRYSTAL

Datasheet

358In Stock

HK$61.40

HK$47.35

HK$40.28

HK$37.57

View

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SOIC-20

Backup Switching

2.7 V

5.5 V

- 40 C

+ 85 C

ISL12022

SMD/SMT

Tube

Real Time Clock LW PWR RTC W/RESEAL 8LD

ISL12008IB8Z
Renesas / Intersil
1: HK$26.55
4,620In Stock

Mfr. Part No.
ISL12008IB8Z

Mouser Part No
968-ISL12008IB8Z

Renesas / Intersil

Real Time Clock LW PWR RTC W/RESEAL 8LD

Datasheet

4,620In Stock

HK$26.55

HK$19.81

HK$16.28

HK$15.12

View

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

SOIC-8

Backup Switching

2.7 V

5.5 V

- 40 C

+ 85 C

ISL12008

SMD/SMT

Tube

Real Time Clock REAL TIME CLK ENHANC CD ESD & MOISTURESIS

ISL12022MAIBZ
Renesas / Intersil
1: HK$61.81
760In Stock

Mfr. Part No.
ISL12022MAIBZ

Mouser Part No
968-ISL12022MAIBZ

Renesas / Intersil

Real Time Clock REAL TIME CLK ENHANC CD ESD & MOISTURESIS

Datasheet

760In Stock

HK$61.81

HK$47.68

HK$35.84

HK$34.44

View

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SOIC-20

Backup Switching

2.7 V

5.5 V

- 40 C

+ 85 C

ISL12022

SMD/SMT

Tube

Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP

ISL12057IBZ
Renesas / Intersil
1: HK$23.18
1,957In Stock

Mfr. Part No.
ISL12057IBZ

Mouser Part No
968-ISL12057IBZ

Renesas / Intersil

Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP

Datasheet

1,957In Stock

HK$23.18

HK$17.26

HK$15.86

HK$14.22

View

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SOIC-8

No Backup Switching

1.8 V

3.6 V

- 40 C

+ 85 C

ISL12057

SMD/SMT

Tube

Real Time Clock 1Kb EE 64B SRAM WD TED EUI-64

MCP795W12-I/SL
Microchip Technology
1: HK$15.21
717In Stock

Mfr. Part No.
MCP795W12-I/SL

Mouser Part No
579-MCP795W12-I/SL

Microchip Technology

Real Time Clock 1Kb EE 64B SRAM WD TED EUI-64

Learn More

Datasheet

717In Stock

HK$15.21

HK$13.32

Min.: 1
Mult.: 1

SPI

YY-MM-DD-dd

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

SOIC-14

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock Serial RTC A 595-BQ3 2000DR A 595-BQ3200 A 595-BQ32000DR

BQ32000D
Texas Instruments
1: HK$19.73
717In Stock

Mfr. Part No.
BQ32000D

Mouser Part No
595-BQ32000D

Texas Instruments

Real Time Clock Serial RTC A 595-BQ3 2000DR A 595-BQ3200 A 595-BQ32000DR

Datasheet

717In Stock

HK$19.73

HK$16.03

HK$12.99

HK$12.17

View

Min.: 1
Mult.: 1

Serial

YY-MM-DD-dd

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

SOIC-8

Backup Switching

3 V

3.6 V

- 40 C

+ 85 C

BQ32000

SMD/SMT

Tube

Real Time Clock I2C RTCC 64B SRAM No VBAT

MCP7940M-I/ST
Microchip Technology
1: HK$5.84
1,302In Stock

Mfr. Part No.
MCP7940M-I/ST

Mouser Part No
579-MCP7940M-I/ST

Microchip Technology

Real Time Clock I2C RTCC 64B SRAM No VBAT

Learn More

Datasheet

1,302In Stock

HK$5.84

HK$5.63

HK$5.43

HK$5.10

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

TSSOP-8

No Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS

ISL12058IRTZ
Renesas / Intersil
1: HK$23.18
953In Stock

Mfr. Part No.
ISL12058IRTZ

Mouser Part No
968-ISL12058IRTZ

Renesas / Intersil

Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS

Datasheet

953In Stock

HK$23.18

HK$17.26

HK$15.86

HK$14.14

View

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

TDFN-8

No Backup Switching

1.8 V

3.6 V

- 40 C

+ 85 C

ISL12058

SMD/SMT

Tube

Real Time Clock w/242x8 NVSRAM Alarm Wake-up

BQ3285ES
Texas Instruments
1: HK$110.23
85In Stock
End of Life

Mfr. Part No.
BQ3285ES

Mouser Part No
595-BQ3285ES

End of Life

Texas Instruments

Real Time Clock w/242x8 NVSRAM Alarm Wake-up

Datasheet

85In Stock

HK$110.23

HK$103.49

HK$87.87

Min.: 1
Mult.: 1

Multiplexed

YY-MM-DD-dd

HH:MM:SS (24 hr)

SOIC-24

4.5 V

5.5 V

0 C

+ 70 C

BQ3285E

SMD/SMT

Tube

Real Time Clock I2C GP RTCC 64B SRAM ID

MCP79400-I/SN
Microchip Technology
1: HK$7.81
1,845In Stock

Mfr. Part No.
MCP79400-I/SN

Mouser Part No
579-MCP79400ISN

Microchip Technology

Real Time Clock I2C GP RTCC 64B SRAM ID

Learn More

Datasheet

1,845In Stock

HK$7.81

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

SOIC-8

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

MCP79400

SMD/SMT

Tube

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

MCP79401-I/SN
Microchip Technology
1: HK$8.55
13,563In Stock

Mfr. Part No.
MCP79401-I/SN

Mouser Part No
579-MCP79401ISN

Microchip Technology

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

Learn More

Datasheet

13,563In Stock

HK$8.55

HK$7.89

HK$7.48

HK$7.47

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

SOIC-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/MS
Microchip Technology
1: HK$7.40
2,205In Stock

Mfr. Part No.
MCP7940N-I/MS

Mouser Part No
579-MCP7940N-I/MS

Microchip Technology

Real Time Clock I2C GP RTCC 64B SRAM

Learn More

Datasheet

2,205In Stock

HK$7.40

HK$6.82

HK$6.58

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

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/SN
Microchip Technology
1: HK$6.99
3,690In Stock
7,800Expected 9/10/2026

Mfr. Part No.
MCP7940N-I/SN

Mouser Part No
579-MCP7940N-I/SN

Microchip Technology

Real Time Clock I2C GP RTCC 64B SRAM

Learn More

Datasheet

3,690In Stock

7,800Expected 9/10/2026

HK$6.99

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

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 ID

MCP79410-I/SN
Microchip Technology
1: HK$8.55
4,540In Stock

Mfr. Part No.
MCP79410-I/SN

Mouser Part No
579-MCP79410-I/SN

Microchip Technology

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

Learn More

Datasheet

4,540In Stock

HK$8.55

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

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

MCP79412-I/SN
Microchip Technology
1: HK$9.29
3,376In Stock

Mfr. Part No.
MCP79412-I/SN

Mouser Part No
579-MCP79412ISN

Microchip Technology

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

Learn More

Datasheet

3,376In Stock

HK$9.29

HK$8.63

HK$8.22

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

SOIC-8

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tube

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

MCP79520-I/MS
Microchip Technology
1: HK$11.43
8,180In Stock

Mfr. Part No.
MCP79520-I/MS

Mouser Part No
579-MCP79520-I/MS

Microchip Technology

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

Learn More

Datasheet

8,180In Stock

HK$11.43

HK$10.52

HK$10.03

Min.: 1
Mult.: 1

SPI

YY-MM-DD-dd

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

MSOP-10

Backup Switching

1.8 V

3.6 V

- 40 C

+ 85 C

SMD/SMT

Tube

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

MCP79522-I/MS
Microchip Technology
1: HK$12.17
1,395In Stock

Mfr. Part No.
MCP79522-I/MS

Mouser Part No
579-MCP79522-I/MS

Microchip Technology

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

Learn More

Datasheet

1,395In Stock

HK$12.17

HK$11.26

HK$10.69

Min.: 1
Mult.: 1

SPI

YY-MM-DD-dd

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

MSOP-10

Backup Switching

1.8 V

3.6 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock 16K (2Kx8) 150ns

M48T02-150PC1
STMicroelectronics
1: HK$254.98
666In Stock

Mfr. Part No.
M48T02-150PC1

Mouser Part No
511-M48T0215PC1

STMicroelectronics

Real Time Clock 16K (2Kx8) 150ns

Datasheet

666In Stock

HK$254.98

HK$202.95

HK$187.01

HK$175.17

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

PCDIP-24

Integrated Battery

4.75 V

5.5 V

0 C

+ 70 C

M48T02

Through Hole

Tube

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1338
1339
1337AGD
BQ32000
BQ32002
BQ3285
BQ3285E
BQ4802LY
BQ4802Y
DP8570A
DP8573A
ISL12008
ISL12020
ISL12022
ISL12057
ISL12058
ISL1208
ISL1209
ISL1219
M48T02