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Real Time Clocks (RTC)

Analog Devices Inc. Real-time Clocks (RTCs) are offered in a wide range of low-power, highly accurate, small packages, and MEMs-based ICs. RTC ICs measure time, even when the power of the main device is off, so an auxiliary battery or supercapacitor are required. Power consumption is a key factor in most RTC designs, but accuracy and small package size are also important. The latest RTC ICs reduce package pin count by supporting a serial interface.

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Part #

Real Time Clock Low-Current SPI/3-Wire RTCs

DS1343E-3+
Analog Devices / Maxim Integrated
1: $11.21
17In Stock

Mfr. Part No.
DS1343E-3+

Mouser Part No
700-DS1343E-3+

Analog Devices / Maxim Integrated

Real Time Clock Low-Current SPI/3-Wire RTCs

Datasheet

17In Stock

$11.21

$8.66

$7.51

$7.21

View

Min.: 1
Mult.: 1

Real Time Clock Low-Current SPI/3-Wire RTCs

DS1344E-3+
Analog Devices / Maxim Integrated
1: $12.01
53In Stock

Mfr. Part No.
DS1344E-3+

Mouser Part No
700-DS1344E-3+

Analog Devices / Maxim Integrated

Real Time Clock Low-Current SPI/3-Wire RTCs

Datasheet

53In Stock

$12.01

$9.30

$8.64

$7.48

View

Min.: 1
Mult.: 1

Real Time Clock Total-Elapsed-Time Recorder with Alarm

DS1682S+T&R
Analog Devices / Maxim Integrated
1: $12.17
19,471On Order

Mfr. Part No.
DS1682S+T&R

Mouser Part No
700-DS1682ST&R

Analog Devices / Maxim Integrated

Real Time Clock Total-Elapsed-Time Recorder with Alarm

Datasheet

19,471On Order

Cut Tape

$12.17

$9.44

$8.74

$8.00

View

Reel

$6.99

MouseReel Available

Min.: 1
Mult.: 1
Max.: 2,500

: 2,500

Real Time Clock 5ppm, I2C Real-Time Clock

DS3231MZ+
Analog Devices / Maxim Integrated
1: $18.77
3,996Expected 10/2/2027

Mfr. Part No.
DS3231MZ+

Mouser Part No
700-DS3231MZ+

Analog Devices / Maxim Integrated

Real Time Clock 5ppm, I2C Real-Time Clock

Datasheet

3,996Expected 10/2/2027

$18.77

$14.74

$13.74

$12.61

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

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

DS1308U-18+
Analog Devices / Maxim Integrated
1: $7.94
146Expected 28/9/2026

Mfr. Part No.
DS1308U-18+

Mouser Part No
700-DS1308U-18+

Analog Devices / Maxim Integrated

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

Datasheet

146Expected 28/9/2026

$7.94

$6.07

$5.41

$5.06

View

Min.: 1
Mult.: 1

Real Time Clock I C, 32-Bit, Binary Counter Clock with 64-Bit ID

DS1372U+
Analog Devices / Maxim Integrated
1: $7.19
223Expected 21/9/2026

Mfr. Part No.
DS1372U+

Mouser Part No
700-DS1372U

Analog Devices / Maxim Integrated

Real Time Clock I C, 32-Bit, Binary Counter Clock with 64-Bit ID

Datasheet

223Expected 21/9/2026

$7.19

$5.49

$4.95

$4.71

View

Min.: 1
Mult.: 1

Real Time Clock I C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output

DS1374U-18+
Analog Devices / Maxim Integrated
1: $9.53
300Expected 18/8/2026

Mfr. Part No.
DS1374U-18+

Mouser Part No
700-DS1374U-18

Analog Devices / Maxim Integrated

Real Time Clock I C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output

Datasheet

300Expected 18/8/2026

$9.53

$7.22

$6.57

$6.15

View

Min.: 1
Mult.: 1

Real Time Clock Portable System Controller

DS1673E-3+
Analog Devices / Maxim Integrated
1: $21.30
69Expected 10/8/2026

Mfr. Part No.
DS1673E-3+

Mouser Part No
700-DS1673E-3

Analog Devices / Maxim Integrated

Real Time Clock Portable System Controller

Datasheet

69Expected 10/8/2026

$21.30

$16.86

$15.64

$14.27

View

Min.: 1
Mult.: 1

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

DS1308U-3+T
Analog Devices / Maxim Integrated
3,000: $4.80
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1308U-3+T

Mouser Part No
700-DS1308U-3+T

Analog Devices / Maxim Integrated

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

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$4.80

Min.: 3,000
Mult.: 3,000

: 3,000

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

DS1338U-18+T&R
Analog Devices / Maxim Integrated
3,000: $4.77
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1338U-18+T&R

Mouser Part No
700-DS1338U-18+T&R

Analog Devices / Maxim Integrated

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

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$4.77

Min.: 3,000
Mult.: 3,000

: 3,000

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

DS1338U-3+T&R
Analog Devices / Maxim Integrated
3,000: $4.58
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1338U-3+T&R

Mouser Part No
700-DS1338U-3T&R

Analog Devices / Maxim Integrated

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

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$4.58

Min.: 3,000
Mult.: 3,000

: 3,000

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

DS1338Z-18+T&R
Analog Devices / Maxim Integrated
2,500: $4.94
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1338Z-18+T&R

Mouser Part No
700-DS1338Z-18+T&R

Analog Devices / Maxim Integrated

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

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$4.94

Min.: 2,500
Mult.: 2,500

: 2,500

Real Time Clock I C Serial Real-Time Clock

DS1339U-2+T&R
Analog Devices / Maxim Integrated
3,000: $5.29
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1339U-2+T&R

Mouser Part No
700-DS1339U-2T&R

Analog Devices / Maxim Integrated

Real Time Clock I C Serial Real-Time Clock

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$5.29

Min.: 3,000
Mult.: 3,000

: 3,000

Real Time Clock I C RTC with Trickle Charger

DS1340Z-3+T&R
Analog Devices / Maxim Integrated
2,500: $5.02
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1340Z-3+T&R

Mouser Part No
700-DS1340Z-3T&R

Analog Devices / Maxim Integrated

Real Time Clock I C RTC with Trickle Charger

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$5.02

Min.: 2,500
Mult.: 2,500

: 2,500

Real Time Clock Low-Current SPI/3-Wire RTCs

DS1343D-33+T&R
Analog Devices / Maxim Integrated
2,500: $5.78
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1343D-33+T&R

Mouser Part No
700-DS1343D-33+T&R

Analog Devices / Maxim Integrated

Real Time Clock Low-Current SPI/3-Wire RTCs

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$5.78

Min.: 2,500
Mult.: 2,500

: 2,500

Real Time Clock Low-Current SPI/3-Wire RTCs

DS1343E-3+T&R
Analog Devices / Maxim Integrated
2,500: $5.64
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1343E-3+T&R

Mouser Part No
700-DS1343E-3+T&R

Analog Devices / Maxim Integrated

Real Time Clock Low-Current SPI/3-Wire RTCs

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$5.64

Min.: 2,500
Mult.: 2,500

: 2,500

Real Time Clock Low-Current SPI/3-Wire RTCs

DS1343E-33+T&R
Analog Devices / Maxim Integrated
2,500: $5.59
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1343E-33+T&R

Mouser Part No
700-DS1343E-33+T&R

Analog Devices / Maxim Integrated

Real Time Clock Low-Current SPI/3-Wire RTCs

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$5.59

Min.: 2,500
Mult.: 2,500

: 2,500

Real Time Clock Low-Current SPI/3-Wire RTCs

DS1344D-3+
Analog Devices / Maxim Integrated
1: $11.53
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1344D-3+

Mouser Part No
700-DS1344D-3+

Analog Devices / Maxim Integrated

Real Time Clock Low-Current SPI/3-Wire RTCs

Datasheet

Non-Stocked Lead-Time 14 Weeks

$11.53

$8.94

$8.28

$7.43

View

Min.: 1
Mult.: 1

Real Time Clock Low-Current SPI/3-Wire RTCs

DS1344D-3+T&R
Analog Devices / Maxim Integrated
2,500: $5.98
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1344D-3+T&R

Mouser Part No
700-DS1344D-3+T&R

Analog Devices / Maxim Integrated

Real Time Clock Low-Current SPI/3-Wire RTCs

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$5.98

Quote

Min.: 2,500
Mult.: 2,500

: 2,500

Real Time Clock Low-Current SPI/3-Wire RTCs

DS1344D-33+
Analog Devices / Maxim Integrated
1: $11.53
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1344D-33+

Mouser Part No
700-DS1344D-33+

Analog Devices / Maxim Integrated

Real Time Clock Low-Current SPI/3-Wire RTCs

Datasheet

Non-Stocked Lead-Time 14 Weeks

$11.53

$8.94

$8.28

$7.43

View

Min.: 1
Mult.: 1

Real Time Clock Low-Current SPI/3-Wire RTCs

DS1344E-3+T&R
Analog Devices / Maxim Integrated
2,500: $5.81
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1344E-3+T&R

Mouser Part No
700-DS1344E-3+T&R

Analog Devices / Maxim Integrated

Real Time Clock Low-Current SPI/3-Wire RTCs

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$5.81

Min.: 2,500
Mult.: 2,500

: 2,500

Real Time Clock Low-Current SPI/3-Wire RTCs

DS1344E-33+T&R
Analog Devices / Maxim Integrated
2,500: $6.00
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1344E-33+T&R

Mouser Part No
700-DS1344E-33+T&R

Analog Devices / Maxim Integrated

Real Time Clock Low-Current SPI/3-Wire RTCs

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$6.00

Min.: 2,500
Mult.: 2,500

: 2,500

Real Time Clock I C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output

DS1374U-3+T&R
Analog Devices / Maxim Integrated
3,000: $4.77
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1374U-3+T&R

Mouser Part No
700-DS1374U-3T&R

Analog Devices / Maxim Integrated

Real Time Clock I C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$4.77

Min.: 3,000
Mult.: 3,000

: 3,000

Real Time Clock I C Digital Input RTC with Alarm

DS1375T+T&R
Analog Devices / Maxim Integrated
2,500: $1.94
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1375T+T&R

Mouser Part No
700-DS1375TT&R

Analog Devices / Maxim Integrated

Real Time Clock I C Digital Input RTC with Alarm

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$1.94

$1.92

Min.: 2,500
Mult.: 2,500

: 2,500

Real Time Clock I C RTC/Supervisor with Trickle Charger

DS1388Z-3+T&R
Analog Devices / Maxim Integrated
2,500: $6.05
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
DS1388Z-3+T&R

Mouser Part No
700-DS1388Z-3T&R

Analog Devices / Maxim Integrated

Real Time Clock I C RTC/Supervisor with Trickle Charger

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$6.05

Min.: 2,500
Mult.: 2,500

: 2,500