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Part #

Real Time Clock 16K (2Kx8) 70ns

M48T12-70PC1
STMicroelectronics
1: $42.10
305In Stock
560Expected 2026/08/20

Mfr. Part No.
M48T12-70PC1

Mouser Part No
511-M48T1270PC1

STMicroelectronics

Real Time Clock 16K (2Kx8) 70ns

Datasheet

305In Stock

560Expected 2026/08/20

$42.10

$33.54

$32.17

$30.16

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

8 kB

PCDIP-24

Integrated Battery

4.5 V

5.5 V

0 C

+ 70 C

M48T12

Through Hole

Tube

Real Time Clock 64K (8Kx8) 100ns

M48T18-100PC1
STMicroelectronics
1: $44.73
330In Stock
1,200Expected 2026/09/28

Mfr. Part No.
M48T18-100PC1

Mouser Part No
511-M48T1810PC1

STMicroelectronics

Real Time Clock 64K (8Kx8) 100ns

Datasheet

330In Stock

1,200Expected 2026/09/28

$44.73

$36.16

$33.90

$32.88

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

8 kB

PCDIP-28

Integrated Battery

4.5 V

5.5 V

0 C

+ 70 C

M48T18

Through Hole

Tube

Real Time Clock 256K (32Kx8) 70ns

M48T35Y-70PC1
STMicroelectronics
1: $50.11
121In Stock
480Expected 2026/09/22

Mfr. Part No.
M48T35Y-70PC1

Mouser Part No
511-M48T35Y70PC1

STMicroelectronics

Real Time Clock 256K (32Kx8) 70ns

Datasheet

121In Stock

480Expected 2026/09/22

$50.11

$40.60

$38.19

$36.79

$35.17

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

32 kB

PCDIP-28

Integrated Battery

4.5 V

5.5 V

0 C

+ 70 C

M48T35Y

Through Hole

Tube

Real Time Clock 64K (8Kx8) 70ns

M48T58-70PC1
STMicroelectronics
1: $47.58
200In Stock

Mfr. Part No.
M48T58-70PC1

Mouser Part No
511-M48T5870PC1

STMicroelectronics

Real Time Clock 64K (8Kx8) 70ns

Datasheet

200In Stock

$47.58

$38.89

$36.72

$35.69

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

8 kB

PCDIP-28

Integrated Battery

4.75 V

5.5 V

0 C

+ 70 C

M48T58

Through Hole

Tube

Real Time Clock 64K (8Kx8) 70ns

M48T58Y-70PC1
STMicroelectronics
1: $37.61
254In Stock

Mfr. Part No.
M48T58Y-70PC1

Mouser Part No
511-M48T58Y70PC1

STMicroelectronics

Real Time Clock 64K (8Kx8) 70ns

Datasheet

254In Stock

$37.61

$30.34

$28.48

$27.19

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

8 kB

PCDIP-28

Integrated Battery

4.5 V

5.5 V

0 C

+ 70 C

M48T58Y

Through Hole

Tube

Real Time Clock 256k NV SRAM with Phantom Clock

DS1244Y-70+
Analog Devices / Maxim Integrated
1: $53.47
135In Stock

Mfr. Part No.
DS1244Y-70+

Mouser Part No
700-DS1244Y-70

Analog Devices / Maxim Integrated

Real Time Clock 256k NV SRAM with Phantom Clock

Datasheet

135In Stock

$53.47

$49.06

Min.: 1
Mult.: 1
Max.: 12

Parallel

YY-MM-DD-dd

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

32 kB

EDIP-28

Integrated Battery

4.5 V

5.5 V

0 C

+ 70 C

DS1244Y

Through Hole

Tube

Real Time Clock 1024k NV SRAM with Phantom Clock

DS1248Y-70+
Analog Devices / Maxim Integrated
1: $69.55
150In Stock

Mfr. Part No.
DS1248Y-70+

Mouser Part No
700-DS1248Y-70

Analog Devices / Maxim Integrated

Real Time Clock 1024k NV SRAM with Phantom Clock

Datasheet

150In Stock

$69.55

$60.60

Min.: 1
Mult.: 1
Max.: 20

Parallel

YY-MM-DD-dd

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

128 kB

EDIP-32

Integrated Battery

4.5 V

5.5 V

0 C

+ 70 C

DS1248Y

Through Hole

Tube

Real Time Clock Real-Time Clocks

DS12887A+
Analog Devices / Maxim Integrated
1: $19.35
418In Stock

Mfr. Part No.
DS12887A+

Mouser Part No
700-DS12887A

Analog Devices / Maxim Integrated

Real Time Clock Real-Time Clocks

Datasheet

418In Stock

$19.35

$15.40

$14.33

Min.: 1
Mult.: 1
Max.: 42

Multiplexed

YY-MM-DD-dd

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

114 B

EDIP-24

Integrated Battery

4.5 V

5.5 V

0 C

+ 70 C

DS12887A

Through Hole

Tube

Real Time Clock Trickle-Charge Timekeeping Chip

DS1302+
Analog Devices / Maxim Integrated
1: $6.62
846In Stock

Mfr. Part No.
DS1302+

Mouser Part No
700-DS1302

Analog Devices / Maxim Integrated

Real Time Clock Trickle-Charge Timekeeping Chip

Learn More

Datasheet

846In Stock

$6.62

$5.01

$4.56

$4.29

Min.: 1
Mult.: 1
Max.: 100

Serial 3-Wire

YY-MM-DD-dd

HH:MM:SS (24 hr)

31 B

PDIP-8

Backup Switching

2 V

5.5 V

0 C

+ 70 C

DS1302

Through Hole

Tube

Real Time Clock Trickle-Charge Timekeeping Chip

DS1302SN+
Analog Devices / Maxim Integrated
1: $6.97
564In Stock

Mfr. Part No.
DS1302SN+

Mouser Part No
700-DS1302SN

Analog Devices / Maxim Integrated

Real Time Clock Trickle-Charge Timekeeping Chip

Learn More

Datasheet

564In Stock

$6.97

$5.35

$4.65

$4.43

View

Min.: 1
Mult.: 1

Serial 3-Wire

YY-MM-DD-dd

HH:MM:SS (24 hr)

31 B

SOIC-8

Backup Switching

2 V

5.5 V

- 40 C

+ 85 C

DS1302SN

SMD/SMT

Tube

Real Time Clock Trickle-Charge Timekeeping Chip

DS1302Z+
Analog Devices / Maxim Integrated
1: $6.28
2,310In Stock

Mfr. Part No.
DS1302Z+

Mouser Part No
700-DS1302Z

Analog Devices / Maxim Integrated

Real Time Clock Trickle-Charge Timekeeping Chip

Learn More

Datasheet

2,310In Stock

$6.28

$4.84

$4.45

$4.05

Min.: 1
Mult.: 1
Max.: 200

Serial 3-Wire

YY-MM-DD-dd

HH:MM:SS (24 hr)

31 B

SOIC-8

Backup Switching

2 V

5.5 V

- 40 C

+ 85 C

DS1302Z

SMD/SMT

Tube

Real Time Clock Trickle-Charge Timekeeping Chip

DS1302ZN+
Analog Devices / Maxim Integrated
1: $7.15
1,199In Stock

Mfr. Part No.
DS1302ZN+

Mouser Part No
700-DS1302ZN

Analog Devices / Maxim Integrated

Real Time Clock Trickle-Charge Timekeeping Chip

Learn More

Datasheet

1,199In Stock

$7.15

$5.50

$5.08

$4.62

View

Min.: 1
Mult.: 1

Serial 3-Wire

YY-MM-DD-dd

HH:MM:SS (24 hr)

31 B

SOIC-8

Backup Switching

2 V

5.5 V

- 40 C

+ 85 C

DS1302ZN

SMD/SMT

Tube

Real Time Clock Serial Alarm Real-Time Clock

DS1305E+
Analog Devices / Maxim Integrated
1: $10.16
237In Stock
148Expected 2026/12/16

Mfr. Part No.
DS1305E+

Mouser Part No
700-DS1305E

Analog Devices / Maxim Integrated

Real Time Clock Serial Alarm Real-Time Clock

Datasheet

237In Stock

148Expected 2026/12/16

$10.16

$7.92

$6.93

$6.68

View

Min.: 1
Mult.: 1

Serial 3-Wire, SPI

YY-MM-DD

HH:MM:SS (24 hr)

96 B

TSSOP-20

Backup Switching

2 V

5.5 V

0 C

+ 70 C

DS1305E

SMD/SMT

Tube

Real Time Clock Serial Alarm Real-Time Clock

DS1305N+
Analog Devices / Maxim Integrated
1: $12.68
1,067In Stock

Mfr. Part No.
DS1305N+

Mouser Part No
700-DS1305N

Analog Devices / Maxim Integrated

Real Time Clock Serial Alarm Real-Time Clock

Datasheet

1,067In Stock

$12.68

$9.93

$9.25

$8.57

View

Min.: 1
Mult.: 1

Serial 3-Wire, SPI

YY-MM-DD

HH:MM:SS (24 hr)

96 B

DIP-16

Backup Switching

2 V

5.5 V

- 40 C

+ 85 C

DS1305N

Through Hole

Tube

Real Time Clock Serial Alarm Real-Time Clock

DS1306E+
Analog Devices / Maxim Integrated
1: $9.41
1,208In Stock
1,184Expected 2026/09/01

Mfr. Part No.
DS1306E+

Mouser Part No
700-DS1306E

Analog Devices / Maxim Integrated

Real Time Clock Serial Alarm Real-Time Clock

Datasheet

1,208In Stock

1,184Expected 2026/09/01

$9.41

$7.33

$6.38

$6.13

View

Min.: 1
Mult.: 1

Serial 3-Wire, SPI

YY-MM-DD

HH:MM:SS (24 hr)

96 B

TSSOP-20

Backup Switching

2 V

5.5 V

0 C

+ 70 C

DS1306E

SMD/SMT

Tube

Real Time Clock Serial Alarm Real-Time Clock

DS1306EN+
Analog Devices / Maxim Integrated
1: $10.14
1,026In Stock

Mfr. Part No.
DS1306EN+

Mouser Part No
700-DS1306EN

Analog Devices / Maxim Integrated

Real Time Clock Serial Alarm Real-Time Clock

Datasheet

1,026In Stock

$10.14

$7.90

$6.92

$6.66

View

Min.: 1
Mult.: 1

Serial 3-Wire, SPI

YY-MM-DD

HH:MM:SS (24 hr)

96 B

TSSOP-20

Backup Switching

2 V

5.5 V

- 40 C

+ 85 C

DS1306EN

SMD/SMT

Tube

Real Time Clock 64 x 8, Serial, I C Real-Time Clock

DS1307+
Analog Devices / Maxim Integrated
1: $6.59
1,197In Stock

Mfr. Part No.
DS1307+

Mouser Part No
700-DS1307

Analog Devices / Maxim Integrated

Real Time Clock 64 x 8, Serial, I C Real-Time Clock

Learn More

Datasheet

1,197In Stock

$6.59

$5.16

$4.69

$4.40

Min.: 1
Mult.: 1
Max.: 100

I2C

YY-MM-DD

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

56 B

PDIP-8

Backup Switching

4.5 V

5.5 V

0 C

+ 70 C

DS1307

Through Hole

Tube

Real Time Clock 64 x 8, Serial, I C Real-Time Clock

DS1307ZN+
Analog Devices / Maxim Integrated
1: $6.97
912In Stock

Mfr. Part No.
DS1307ZN+

Mouser Part No
700-DS1307ZN

Analog Devices / Maxim Integrated

Real Time Clock 64 x 8, Serial, I C Real-Time Clock

Learn More

Datasheet

912In Stock

$6.97

$5.35

$4.95

$4.49

Min.: 1
Mult.: 1
Max.: 100

I2C

YY-MM-DD

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

56 B

SOIC-8

Backup Switching

4.5 V

5.5 V

- 40 C

+ 85 C

DS1307ZN

SMD/SMT

Tube

Real Time Clock Low-Current I C RTC with 56-Byte NV RAM

DS1308U-33+
Analog Devices / Maxim Integrated
1: $5.97
431In Stock

Mfr. Part No.
DS1308U-33+

Mouser Part No
700-DS1308U-33+

Analog Devices / Maxim Integrated

Real Time Clock Low-Current I C RTC with 56-Byte NV RAM

Learn More

Datasheet

431In Stock

$5.97

$4.55

$4.13

$3.80

View

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

56 B

uSOP-8

Backup Switching

3 V

5.5 V

- 40 C

+ 85 C

DS1308U

SMD/SMT

Tube

Real Time Clock I C Serial Real-Time Clock

DS1337S+
Analog Devices / Maxim Integrated
1: $5.14
1,262In Stock

Mfr. Part No.
DS1337S+

Mouser Part No
700-DS1337S

Analog Devices / Maxim Integrated

Real Time Clock I C Serial Real-Time Clock

Learn More

Datasheet

1,262In Stock

$5.14

$4.00

$3.69

$3.33

Min.: 1
Mult.: 1
Max.: 100

I2C

YY-MM-DD-dd

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

SO-8

No Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

DS1337S

SMD/SMT

Tube

Real Time Clock I C RTC with 56-Byte NV RAM

DS1338C-33#
Analog Devices / Maxim Integrated
1: $11.04
1,026In Stock

Mfr. Part No.
DS1338C-33#

Mouser Part No
700-DS1338C-33#

Analog Devices / Maxim Integrated

Real Time Clock I C RTC with 56-Byte NV RAM

Datasheet

1,026In Stock

$11.04

$8.62

$7.77

$7.29

View

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

56 B

SO-16

Backup Switching

3 V

5.5 V

- 40 C

+ 85 C

DS1338C

SMD/SMT

Tube

Real Time Clock I C RTC with 56-Byte NV RAM

DS1338Z-18+
Analog Devices / Maxim Integrated
1: $6.90
3,000In Stock

Mfr. Part No.
DS1338Z-18+

Mouser Part No
700-DS1338Z-18

Analog Devices / Maxim Integrated

Real Time Clock I C RTC with 56-Byte NV RAM

Datasheet

3,000In Stock

$6.90

$5.29

$4.90

$4.44

View

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

56 B

SOIC-8

Backup Switching

1.71 V

5.5 V

- 40 C

+ 85 C

DS1338Z

SMD/SMT

Tube

Real Time Clock I C Serial Real-Time Clock

DS1339C-33#
Analog Devices / Maxim Integrated
1: $12.27
562In Stock

Mfr. Part No.
DS1339C-33#

Mouser Part No
700-DS1339C-33#

Analog Devices / Maxim Integrated

Real Time Clock I C Serial Real-Time Clock

Datasheet

562In Stock

$12.27

$9.63

$8.70

$8.02

View

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

SO-16

Backup Switching

2.97 V

5.5 V

- 40 C

+ 85 C

DS1339C

SMD/SMT

Tube

Real Time Clock I C Serial Real-Time Clock

DS1339U-33+
Analog Devices / Maxim Integrated
1: $7.59
1,572In Stock

Mfr. Part No.
DS1339U-33+

Mouser Part No
700-DS1339U-33

Analog Devices / Maxim Integrated

Real Time Clock I C Serial Real-Time Clock

Learn More

Datasheet

1,572In Stock

$7.59

$5.86

$5.20

$4.94

Min.: 1
Mult.: 1
Max.: 200

Serial 2-Wire, I2C

YY-MM-DD-dd

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

uSOP-8

Backup Switching

2.97 V

5.5 V

- 40 C

+ 85 C

DS1339U

SMD/SMT

Tube

Real Time Clock I C RTC with Trickle Charger

DS1340Z-3+
Analog Devices / Maxim Integrated
1: $7.01
1,197In Stock

Mfr. Part No.
DS1340Z-3+

Mouser Part No
700-DS1340Z-3

Analog Devices / Maxim Integrated

Real Time Clock I C RTC with Trickle Charger

Learn More

Datasheet

1,197In Stock

$7.01

$5.38

$4.98

$4.52

View

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SO-8

Backup Switching

2.7 V

3.3 V

- 40 C

+ 85 C

DS1340Z

SMD/SMT

Tube

Tube Real Time Clock

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

DFN-20
DIP-16
DIP-8
EDIP-24
EDIP-28
EDIP-32
MSOP-10
MSOP-8
PCDIP-24
PCDIP-28
PDIP-16
PDIP-24
PDIP-28
PDIP-8
PLCC-28
SO-16
SO-20
SO-24
SO-28
SO-8

1338
1339
1337AGD
BQ32000
BQ32002
BQ3285
BQ3285E
BQ4802LY
BQ4802Y
DP8570A
DP8573A
DS1243Y
DS1244W
DS1244Y
DS1248Y
DS1251W
DS1251Y
DS12885
DS12885N
DS12885S