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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 5ppm, I2C Real-Time Clock

DS3231MZ+TRL
Analog Devices / Maxim Integrated
1: $14.135
166In Stock
10.000On Order

Mfr. Part #
DS3231MZ+TRL

Mouser Part #
700-DS3231MZ+TRL

Analog Devices / Maxim Integrated

Real Time Clock 5ppm, I2C Real-Time Clock

Datasheet

166In Stock

10.000On Order

Cut Tape

$14.135

$11.106

$10.349

$9.507

View

Reel

$7.688

MouseReel Available

Min.: 1
Mult.: 1
Max.: 10.184

: 2.500

Clock & Timer Development Tools Evaluation kit for +/-5ppm I2C Real-Time

DS3231MZEVKIT#
Analog Devices / Maxim Integrated
1: $153.326
3In Stock

Mfr. Part #
DS3231MZEVKIT#

Mouser Part #
700-DS3231MZEVKIT#

Analog Devices / Maxim Integrated

Clock & Timer Development Tools Evaluation kit for +/-5ppm I2C Real-Time

3In Stock

$153.326

Min.: 1
Mult.: 1
Max.: 3

Real Time Clock Extremely Accurate I C RTC with Integrat

DS3232S#T&R
Analog Devices / Maxim Integrated
1: $14.513
13In Stock

Mfr. Part #
DS3232S#T&R

Mouser Part #
700-DS3232S#T&R-

Analog Devices / Maxim Integrated

Real Time Clock Extremely Accurate I C RTC with Integrat

Datasheet

13In Stock

Cut Tape

$14.513

$11.400

Reel

$11.400

MouseReel Available

Min.: 1
Mult.: 1
Max.: 13

: 1.000

Real Time Clock Low-Current I C RTCs for High-ESR Crystals

DS1341T+T&R
Analog Devices / Maxim Integrated
1: $4.785
156In Stock

Mfr. Part #
DS1341T+T&R

Mouser Part #
700-DS1341T+T&R

Analog Devices / Maxim Integrated

Real Time Clock Low-Current I C RTCs for High-ESR Crystals

Datasheet

156In Stock

Cut Tape

$4.785

$3.618

$3.323

$3.008

Reel

$3.008

MouseReel Available

Min.: 1
Mult.: 1
Max.: 156

: 2.500

Real Time Clock SERIAL RTC 1.8-3.3V HESR USOP TRL

DS1339BU+T
Analog Devices / Maxim Integrated
1: $7.015
6.000Expected 10/29/2026

Mfr. Part #
DS1339BU+T

Mouser Part #
700-DS1339BU+T

Analog Devices / Maxim Integrated

Real Time Clock SERIAL RTC 1.8-3.3V HESR USOP TRL

Datasheet

6.000Expected 10/29/2026

Cut Tape

$7.015

$5.584

$4.932

$4.543

View

Reel

$3.996

MouseReel Available

Min.: 1
Mult.: 1
Max.: 6.000

: 3.000

Real Time Clock 5ppm, I2C Real-Time Clock

DS3231MZ+
Analog Devices / Maxim Integrated
1: $15.944
3.976Expected 2/10/2027

Mfr. Part #
DS3231MZ+

Mouser Part #
700-DS3231MZ+

Analog Devices / Maxim Integrated

Real Time Clock 5ppm, I2C Real-Time Clock

Datasheet

3.976Expected 2/10/2027

$15.944

$12.484

$11.621

$10.664

View

Min.: 1
Mult.: 1
Max.: 3.976

Real Time Clock I C RTC/Supervisor with Trickle Charger

DS1388Z-33+
Analog Devices / Maxim Integrated
1: $9.276
600On Order

Mfr. Part #
DS1388Z-33+

Mouser Part #
700-DS1388Z-33

Analog Devices / Maxim Integrated

Real Time Clock I C RTC/Supervisor with Trickle Charger

Datasheet

600On Order

$9.276

$7.183

$6.668

$6.089

View

Min.: 1
Mult.: 1
Max.: 600

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

DS1308U-18+
Analog Devices / Maxim Integrated
1: $6.520
146Expected 9/21/2026

Mfr. Part #
DS1308U-18+

Mouser Part #
700-DS1308U-18+

Analog Devices / Maxim Integrated

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

Datasheet

146Expected 9/21/2026

$6.520

$4.996

$4.617

$4.196

Min.: 1
Mult.: 1
Max.: 146

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

DS1308U-3+T
Analog Devices / Maxim Integrated
3.000: $3.933
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
DS1308U-3+T

Mouser Part #
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

$3.933

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: $4.049
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
DS1338U-18+T&R

Mouser Part #
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

$4.049

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: $4.049
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
DS1338U-3+T&R

Mouser Part #
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

$4.049

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: $4.049
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
DS1338Z-18+T&R

Mouser Part #
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

$4.049

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: $4.343
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
DS1339U-2+T&R

Mouser Part #
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

$4.343

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: $4.123
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
DS1340Z-3+T&R

Mouser Part #
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

$4.123

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: $4.806
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
DS1343D-33+T&R

Mouser Part #
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

$4.806

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: $4.806
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
DS1343E-3+T&R

Mouser Part #
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

$4.806

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: $4.764
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
DS1343E-33+T&R

Mouser Part #
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

$4.764

Min.: 2.500
Mult.: 2.500

: 2.500

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

DS1344D-3+
Analog Devices / Maxim Integrated
1: $8.824
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
DS1344D-3+

Mouser Part #
700-DS1344D-3+

Analog Devices / Maxim Integrated

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

Datasheet

Non-Stocked Lead-Time 14 Weeks

$8.824

$6.836

$6.342

$5.795

View

Min.: 1
Mult.: 1

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

DS1344D-3+T&R
Analog Devices / Maxim Integrated
2.500: $4.964
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
DS1344D-3+T&R

Mouser Part #
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

$4.964

Min.: 2.500
Mult.: 2.500

: 2.500

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

DS1344D-33+
Analog Devices / Maxim Integrated
1: $8.655
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
DS1344D-33+

Mouser Part #
700-DS1344D-33+

Analog Devices / Maxim Integrated

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

Datasheet

Non-Stocked Lead-Time 14 Weeks

$8.655

$6.668

$6.173

$5.637

View

Min.: 1
Mult.: 1

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

DS1344E-3+T&R
Analog Devices / Maxim Integrated
2.500: $4.806
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
DS1344E-3+T&R

Mouser Part #
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

$4.806

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: $4.806
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
DS1344E-33+T&R

Mouser Part #
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

$4.806

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: $4.049
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
DS1374U-3+T&R

Mouser Part #
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

$4.049

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: $1.630
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
DS1375T+T&R

Mouser Part #
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

$1.630

$1.599

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: $5.027
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
DS1388Z-3+T&R

Mouser Part #
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

$5.027

Min.: 2.500
Mult.: 2.500

: 2.500