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Real Time Clock

Real Time Clocks (RTCs) are available at Mouser Electronics from industry leading manufacturers. Mouser is an authorized distributor for many real time clock manufacturers including Analog Devices, Epson, Microchip, Micro Crystal, NXP, Renesas Electronics, STMicroelectronics & more. Please view our large selection of real time clocks below.

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Results: 920

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Download Table (.CSV)

Part #

Real Time Clock I2C GP RTCC 64B SRAM

MCP7940N-I/ST
Microchip Technology
1: $0.90
667In Stock

Mfr. Part No.
MCP7940N-I/ST

Mouser Part No
579-MCP7940N-I/ST

Microchip Technology

Real Time Clock I2C GP RTCC 64B SRAM

Learn More

Datasheet

667In Stock

$0.90

$0.899

$0.83

$0.80

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

64 B

TSSOP-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-48

MCP79411-I/MS
Microchip Technology
1: $1.18
1,097In Stock
700On Order

Mfr. Part No.
MCP79411-I/MS

Mouser Part No
579-MCP79411IMS

Microchip Technology

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

Learn More

Datasheet

1,097In Stock

700On Order

$1.18

$1.08

$1.05

Min.: 1
Mult.: 1

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 SPI GP RTCC 1Kb EE 64B SRAM ID

MCP79510-I/MS
Microchip Technology
1: $1.29
1,027In Stock

Mfr. Part No.
MCP79510-I/MS

Mouser Part No
579-MCP79510-I/MS

Microchip Technology

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

Learn More

Datasheet

1,027In Stock

$1.29

$1.20

$1.15

Min.: 1
Mult.: 1

SPI

YY-MM-DD-dd

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

1 kB

MSOP-10

Backup Switching

1.8 V

3.6 V

- 40 C

+ 85 C

SMD/SMT

Tube

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

MCP79511-I/MS
Microchip Technology
1: $1.39
65In Stock
400On Order

Mfr. Part No.
MCP79511-I/MS

Mouser Part No
579-MCP79511-I/MS

Microchip Technology

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

Learn More

Datasheet

65In Stock

400On Order

$1.39

$1.28

$1.24

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 SPI GP RTCC 2Kb EE 64B SRAM ID

MCP79520T-I/MN
Microchip Technology
1: $1.39
3,178In Stock
3,290On Order

Mfr. Part No.
MCP79520T-I/MN

Mouser Part No
579-MCP79520T-I/MN

Microchip Technology

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

Learn More

Datasheet

3,178In Stock

3,290On Order

Cut Tape

$1.39

$1.28

$1.24

Reel

$1.24

Min.: 1
Mult.: 1

: 3,300

Reel, Cut Tape

Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM EUI-48

MCP79521-I/MS
Microchip Technology
1: $1.48
151In Stock

Mfr. Part No.
MCP79521-I/MS

Mouser Part No
579-MCP79521-I/MS

Microchip Technology

Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM EUI-48

Learn More

Datasheet

151In Stock

$1.48

$1.37

$1.33

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 EUI-48

MCP795W11-I/ST
Microchip Technology
1: $1.89
342In Stock

Mfr. Part No.
MCP795W11-I/ST

Mouser Part No
579-MCP795W11-I/ST

Microchip Technology

Real Time Clock 1Kb EE 64B SRAM WD TED EUI-48

Learn More

Datasheet

342In Stock

$1.89

$1.75

$1.70

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 1Kb EE 64B SRAM WD TED EUI-64

MCP795W12-I/SL
Microchip Technology
1: $1.85
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

$1.85

$1.71

$1.65

Min.: 1
Mult.: 1

SPI

YY-MM-DD-dd

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

1 kB

SOIC-14

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock 2Kb EE 64B SRAM WD TED ID

MCP795W20-I/SL
Microchip Technology
1: $1.85
527In Stock

Mfr. Part No.
MCP795W20-I/SL

Mouser Part No
579-MCP795W20-I/SL

Microchip Technology

Real Time Clock 2Kb EE 64B SRAM WD TED ID

Learn More

Datasheet

527In Stock

$1.85

$1.71

$1.65

Min.: 1
Mult.: 1

SPI

YY-MM-DD-dd

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

2 kB

SOIC-14

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock 2Kb EE 64B SRAM WD TED ID

MCP795W20-I/ST
Microchip Technology
1: $1.89
126In Stock

Mfr. Part No.
MCP795W20-I/ST

Mouser Part No
579-MCP795W20-I/ST

Microchip Technology

Real Time Clock 2Kb EE 64B SRAM WD TED ID

Learn More

Datasheet

126In Stock

$1.89

$1.75

$1.70

Min.: 1
Mult.: 1

SPI

YY-MM-DD-dd

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

2 kB

TSSOP-14

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-48

MCP795W21-I/SL
Microchip Technology
1: $1.94
137In Stock

Mfr. Part No.
MCP795W21-I/SL

Mouser Part No
579-MCP795W21-I/SL

Microchip Technology

Real Time Clock 2Kb EE 64B SRAM WD TED EUI-48

Learn More

Datasheet

137In Stock

$1.94

$1.80

$1.75

Min.: 1
Mult.: 1

SPI

YY-MM-DD-dd

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

2 kB

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: $2.33
756In 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

756In Stock

$2.33

$1.73

$1.44

$1.37

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 SAMAY A 595-BQ32002D R A 595-BQ32002DR A A 595-BQ32002DR

BQ32002D
Texas Instruments
1: $1.95
800In Stock

Mfr. Part No.
BQ32002D

Mouser Part No
595-BQ32002D

Texas Instruments

Real Time Clock SAMAY A 595-BQ32002D R A 595-BQ32002DR A A 595-BQ32002DR

Datasheet

800In Stock

$1.95

$1.44

$1.20

$1.13

View

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SOIC-8

Backup Switching

3 V

3.6 V

- 40 C

+ 85 C

BQ32002

SMD/SMT

Tube

Real Time Clock 4096k NV SRAM with Phantom Clock

DS1251W-120IND+
Analog Devices / Maxim Integrated
1: $72.63
2In Stock

Mfr. Part No.
DS1251W-120IND+

Mouser Part No
700-DS1251W-120IND

Analog Devices / Maxim Integrated

Real Time Clock 4096k NV SRAM with Phantom Clock

Datasheet

2In Stock

$72.63

$63.35

$60.79

$58.32

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

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

512 kB

EDIP-32

2.97 V

3.63 V

- 40 C

+ 85 C

DS1251W

Through Hole

Tube

Real Time Clock 4096k NV SRAM with Phantom Clock

DS1251Y-70+
Analog Devices / Maxim Integrated
1: $65.43
26In Stock

Mfr. Part No.
DS1251Y-70+

Mouser Part No
700-DS1251Y-70

Analog Devices / Maxim Integrated

Real Time Clock 4096k NV SRAM with Phantom Clock

Datasheet

26In Stock

More Info Available

$65.43

$53.95

$51.31

$47.92

$46.42

Min.: 1
Mult.: 1

Parallel, Phantom Clock

YY-MM-DD-dd

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

4 MB

EDIP-32

Integrated Battery

4.5 V

5.5 V

0 C

+ 70 C

DS1251Y

Through Hole

Tube

Real Time Clock Real-Time Clocks

DS12885+
Analog Devices / Maxim Integrated
1: $14.91
73In Stock
64On Order

Mfr. Part No.
DS12885+

Mouser Part No
700-DS12885

Analog Devices / Maxim Integrated

Real Time Clock Real-Time Clocks

Datasheet

73In Stock

64On Order

$14.91

$11.33

$10.86

$8.61

View

Min.: 1
Mult.: 1

Multiplexed

YY-MM-DD-dd

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

114 B

PDIP-24

Backup Switching

4.5 V

5.5 V

0 C

+ 70 C

DS12885

Through Hole

Tube

Real Time Clock Real-Time Clocks

DS12885N+
Analog Devices / Maxim Integrated
1: $15.65
23In Stock

Mfr. Part No.
DS12885N+

Mouser Part No
700-DS12885N

Analog Devices / Maxim Integrated

Real Time Clock Real-Time Clocks

Datasheet

23In Stock

$15.65

$11.89

$11.39

$9.03

View

Min.: 1
Mult.: 1

Multiplexed

YY-MM-DD

HH:MM:SS (24 hr)

114 B

PDIP-24

Backup Switching

4.5 V

5.5 V

- 40 C

+ 85 C

DS12885N

Through Hole

Tube

Real Time Clock Real-Time Clocks

DS12885S+
Analog Devices / Maxim Integrated
1: $13.97
55In Stock

Mfr. Part No.
DS12885S+

Mouser Part No
700-DS12885S

Analog Devices / Maxim Integrated

Real Time Clock Real-Time Clocks

Datasheet

55In Stock

$13.97

$12.42

$11.91

$9.38

View

Min.: 1
Mult.: 1

Multiplexed

YY-MM-DD-dd

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

114 B

SO-24

Backup Switching

4.5 V

5.5 V

0 C

+ 70 C

DS12885S

SMD/SMT

Tube

Real Time Clock Real-Time Clocks

DS12885SN+
Analog Devices / Maxim Integrated
1: $15.28
41In Stock

Mfr. Part No.
DS12885SN+

Mouser Part No
700-DS12885SN

Analog Devices / Maxim Integrated

Real Time Clock Real-Time Clocks

Datasheet

41In Stock

$15.28

$12.09

$11.16

$10.32

View

Min.: 1
Mult.: 1

Multiplexed

YY-MM-DD-dd

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

114 B

SO-24

Backup Switching

4.5 V

5.5 V

- 40 C

+ 85 C

DS12885SN

SMD/SMT

Tube

Real Time Clock Real-Time Clocks

DS12887A+
Analog Devices / Maxim Integrated
1: $20.82
85In Stock
112On Order

Mfr. Part No.
DS12887A+

Mouser Part No
700-DS12887A

Analog Devices / Maxim Integrated

Real Time Clock Real-Time Clocks

Datasheet

85In Stock

112On Order

$20.82

$14.30

$13.62

$12.62

View

Min.: 1
Mult.: 1

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 Real-Time Clocks

DS12C887+
Analog Devices / Maxim Integrated
1: $17.88
82In Stock

Mfr. Part No.
DS12C887+

Mouser Part No
700-DS12C887

Analog Devices / Maxim Integrated

Real Time Clock Real-Time Clocks

Datasheet

82In Stock

More Info Available

$17.88

$13.86

$13.20

$12.23

View

Min.: 1
Mult.: 1

Multiplexed

YY-MM-DD-dd

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

113 B

EDIP-24

Integrated Battery

4.5 V

5.5 V

0 C

+ 70 C

DS12C887

Through Hole

Tube

Real Time Clock Real-Time Clocks

DS12C887A+
Analog Devices / Maxim Integrated
1: $17.88
68In Stock

Mfr. Part No.
DS12C887A+

Mouser Part No
700-DS12C887A

Analog Devices / Maxim Integrated

Real Time Clock Real-Time Clocks

Datasheet

68In Stock

$17.88

$13.86

$13.20

$12.23

View

Min.: 1
Mult.: 1

Multiplexed

YY-MM-DD-dd

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

113 B

EDIP-24

Integrated Battery

4.5 V

5.5 V

0 C

+ 70 C

DS12C887A

Through Hole

Tube

Real Time Clock RTCs with Constant-Voltage Trickle Charg

DS12CR887-33+
Analog Devices / Maxim Integrated
1: $19.86
55In Stock

Mfr. Part No.
DS12CR887-33+

Mouser Part No
700-DS12CR887-33

Analog Devices / Maxim Integrated

Real Time Clock RTCs with Constant-Voltage Trickle Charg

Datasheet

55In Stock

$19.86

$15.46

$14.74

$13.67

View

Min.: 1
Mult.: 1

Multiplexed

YY-MM-DD-dd

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

114 B

EDIP-24

Integrated Battery

2.97 V

3.63 V

- 40 C

+ 85 C

DS12CR887

Through Hole

Tube

Real Time Clock RTCs with Constant-Voltage Trickle Charg

DS12R885S-33+
Analog Devices / Maxim Integrated
1: $7.42
43In Stock

Mfr. Part No.
DS12R885S-33+

Mouser Part No
700-DS12R885S-33

Analog Devices / Maxim Integrated

Real Time Clock RTCs with Constant-Voltage Trickle Charg

Datasheet

43In Stock

$7.42

$5.73

$5.24

$4.79

View

Min.: 1
Mult.: 1

Multiplexed

YY-MM-DD-dd

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

114 B

SO-24

Backup Switching

2.97 V

3.63 V

- 40 C

+ 85 C

DS12R885S

SMD/SMT

Tube

Real Time Clock RTCs with Constant-Voltage Trickle Charg

DS12R885S-5+
Analog Devices / Maxim Integrated
1: $9.37
30In Stock

Mfr. Part No.
DS12R885S-5+

Mouser Part No
700-DS12R885S-5

Analog Devices / Maxim Integrated

Real Time Clock RTCs with Constant-Voltage Trickle Charg

Datasheet

30In Stock

$9.37

$7.02

$6.70

$4.79

View

Min.: 1
Mult.: 1

Multiplexed

YY-MM-DD-dd

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

114 B

SO-24

Backup Switching

4.5 V

5.5 V

- 40 C

+ 85 C

DS12R885S

SMD/SMT

Tube

Real Time Clock

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

DFN-16
DFN-20
DFN2626-10
DFN-8
Die
DIP-16
DIP-8
EDIP-24
EDIP-28
EDIP-32
HWSON-8
LGA-10
MSOP-10
MSOP-8
PCDIP-24
PCDIP-28
PDIP-16
PDIP-24
PDIP-28
PDIP-8

600 mV
750 mV
900 mV
1 V
1.1 V
1.2 V
1.25 V
1.3 V
1.4 V
1.5 V
1.6 V
1.7 V
1.71 V
1.8 V
2 V
2.2 V
2.3 V
2.38 V
2.4 V
2.5 V

1338
1339
1337AGD
AB-RTC-TA-32.768kHz-2
AB-RTC-TC-32.768kHz-2
AB-RTC-TH-32.768kHz-2
AB-RTC-XB-32.768kHz-2
AB-RTC-XL
AB-RTC-XLA
AB-RTC-XP-32.768kHz-2
AB-RTC-XPA-32.768kHz-2
AB-RTCMC
AB08x5
AB18x5
Artasie I2C
Artasie I2C w/ Power Management
Artasie SPI
Artasie SPI w/ Power Management
BQ32000
BQ32002