.hide-partial { max-height: none; } .show-more { display: none; }

SMD/SMT Real Time Clock

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 662

Applied Filters:

Mounting Style = SMD/SMT

Manufacturer

RTC Bus Interface

Date Format

Time Format

RTC Memory Size

Package / Case

Battery Backup Switching

Supply Voltage - Min

Supply Voltage - Max

Minimum Operating Temperature

Maximum Operating Temperature

Series

Qualification

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.6 AEC-Q200

RV-3028-C8-32.768kHz-1PPM-TA-QA
Micro Crystal
1: ¥503.3
1,445In Stock
New Product

Mfr. Part #
RV-3028-C8-32.768kHz-1PPM-TA-QA

Mouser Part #
428-RV3028C81PPMTAQA

New Product

Micro Crystal

Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.6 AEC-Q200

Learn More

Datasheet

1,445In Stock

Cut Tape

¥503.3

¥375.4

¥342.2

¥307.3

Reel

¥292.3

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

2 B

SON-8

Backup Switching

1.1 V

5.5 V

- 40 C

+ 85 C

RV-3028-C8

SMD/SMT

Reel, Cut Tape, MouseReel

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

MCP79401-I/SN
Microchip Technology
1: ¥172.7
13,988In Stock

Mfr. Part #
MCP79401-I/SN

Mouser Part #
579-MCP79401ISN

Microchip Technology

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

Learn More

Datasheet

13,988In Stock

¥172.7

¥159.5

¥151.2

¥151

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

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

64 B

SOIC-8

Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

SMD/SMT

Tube

Real Time Clock Trickle-Charge Timekeeping Chip

DS1302ZN+T&R
Analog Devices / Maxim Integrated
1: ¥988.3
6,037In Stock

Mfr. Part #
DS1302ZN+T&R

Mouser Part #
700-DS1302ZNT&R

Analog Devices / Maxim Integrated

Real Time Clock Trickle-Charge Timekeeping Chip

Learn More

Datasheet

6,037In Stock

Cut Tape

¥988.3

¥752.4

¥694.3

¥629.5

¥598

Reel

¥598

MouseReel Available

Min.: 1
Mult.: 1
Max.: 250

: 2,500

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

Reel, Cut Tape, MouseReel

Real Time Clock 64K (8Kx8) 100ns

M48T08Y-10MH1F
STMicroelectronics
1: ¥6,831.7
997In Stock

Mfr. Part #
M48T08Y-10MH1F

Mouser Part #
511-M48T08Y-10MH1F

STMicroelectronics

Real Time Clock 64K (8Kx8) 100ns

Datasheet

997In Stock

Cut Tape

¥6,831.7

¥5,531.1

¥5,205.6

¥4,991.3

View

Reel

¥4,508

MouseReel Available

Min.: 1
Mult.: 1

: 936

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

64 kB

SOX-28

Backup Switching

4.5 V

5.5 V

0 C

+ 70 C

M48T08Y

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock Extremely Accurate SPI Bus RTC with Inte

DS3234SN#
Analog Devices / Maxim Integrated
1: ¥2,763.9
19,510In Stock

Mfr. Part #
DS3234SN#

Mouser Part #
700-DS3234SN#

Analog Devices / Maxim Integrated

Real Time Clock Extremely Accurate SPI Bus RTC with Inte

Datasheet

19,510In Stock

¥2,763.9

¥2,164.3

¥2,006.5

¥1,850.4

View

Min.: 1
Mult.: 1
Max.: 720

SPI

YY-MM-DD-dd

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

256 B

SO-20

Backup Switching

2 V

5.5 V

- 40 C

+ 85 C

DS3234SN

SMD/SMT

Tube

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

DS1338Z-33+
Analog Devices / Maxim Integrated
1: ¥1,176
23,949In Stock

Mfr. Part #
DS1338Z-33+

Mouser Part #
700-DS1338Z-33

Analog Devices / Maxim Integrated

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

Datasheet

23,949In Stock

¥1,176

¥905.2

¥822.2

¥765.7

View

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

56 B

SOIC-8

Backup Switching

3 V

5.5 V

- 40 C

+ 85 C

DS1338Z

SMD/SMT

Tube

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

DS1744WP-120IND+
Analog Devices / Maxim Integrated
1: ¥9,314.9
628In Stock

Mfr. Part #
DS1744WP-120IND+

Mouser Part #
700-DS1744WP-120IND

Analog Devices / Maxim Integrated

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

Datasheet

628In Stock

¥9,314.9

¥8,479.4

¥7,858.2

¥7,687.1

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

32 kB

PowerCap Module-34

Backup Switching

2.97 V

3.63 V

- 40 C

+ 85 C

DS1744WP

SMD/SMT

Tray

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

DS1307Z+T&R
Analog Devices / Maxim Integrated
1: ¥900.3
13,790In Stock

Mfr. Part #
DS1307Z+T&R

Mouser Part #
700-DS1307ZT&R

Analog Devices / Maxim Integrated

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

Learn More

Datasheet

13,790In Stock

Cut Tape

¥900.3

¥687.7

¥626.2

¥574.7

View

Reel

¥508.3

MouseReel Available

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

: 2,500

I2C

YY-MM-DD

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

56 B

SOIC-8

Backup Switching

4.5 V

5.5 V

0 C

+ 70 C

DS1307Z

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock I C RTC with Trickle Charger

DS1340Z-18+
Analog Devices / Maxim Integrated
1: ¥1,255.7
5,864In Stock

Mfr. Part #
DS1340Z-18+

Mouser Part #
700-DS1340Z-18

Analog Devices / Maxim Integrated

Real Time Clock I C RTC with Trickle Charger

Learn More

Datasheet

5,864In Stock

¥1,255.7

¥968.4

¥887

¥779

View

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SO-8

Backup Switching

1.71 V

1.89 V

- 40 C

+ 85 C

DS1340Z

SMD/SMT

Tube

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

DS1744P-70IND+
Analog Devices / Maxim Integrated
1: ¥10,042.4
912In Stock

Mfr. Part #
DS1744P-70IND+

Mouser Part #
700-DS1744P-70IND

Analog Devices / Maxim Integrated

Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R

Datasheet

912In Stock

¥10,042.4

¥8,251.8

¥7,647.2

¥7,305.1

View

Min.: 1
Mult.: 1

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

32 kB

PowerCap Module-34

Backup Switching

4.5 V

5.5 V

- 40 C

+ 85 C

DS1744P

SMD/SMT

Tray

Real Time Clock 256K (32Kx8) 70ns

M48T35Y-70MH1F
STMicroelectronics
1: ¥4,001.3
1,072In Stock

Mfr. Part #
M48T35Y-70MH1F

Mouser Part #
511-M48T35Y-70MH1F

STMicroelectronics

Real Time Clock 256K (32Kx8) 70ns

Datasheet

1,072In Stock

Cut Tape

¥4,001.3

¥3,199.1

¥2,998.1

¥2,778.9

View

Reel

¥2,524.7

MouseReel Available

Min.: 1
Mult.: 1

: 936

Parallel

YY-MM-DD-dd

HH:MM:SS (24 hr)

256 kB

SOX-28

Backup Switching

4.5 V

5.5 V

0 C

+ 70 C

M48T35Y

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock I C RTC with Trickle Charger

DS1340C-3#
Analog Devices / Maxim Integrated
1: ¥1,820.5
13,318In Stock

Mfr. Part #
DS1340C-3#

Mouser Part #
700-DS1340C-3#-

Analog Devices / Maxim Integrated

Real Time Clock I C RTC with Trickle Charger

Learn More

Datasheet

13,318In Stock

¥1,820.5

¥1,421.8

¥1,288.9

¥1,210.9

View

Min.: 1
Mult.: 1

Serial 2-Wire, I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

SO-16

Backup Switching

2.7 V

3.3 V

- 40 C

+ 85 C

DS1340C

SMD/SMT

Tube

Real Time Clock 32.768kHz I2C Time Acc. 6ppm

RV-3129-C3 32.768kHz OPTION A TA QC
Micro Crystal
1: ¥719.2
1,302In Stock
5,000Expected 9/18/2026

Mfr. Part #
RV-3129-C3 32.768kHz OPTION A TA QC

Mouser Part #
428-203688-MG01

Micro Crystal

Real Time Clock 32.768kHz I2C Time Acc. 6ppm

Learn More

Datasheet

1,302In Stock

5,000Expected 9/18/2026

Cut Tape

¥719.2

¥541.5

¥498.3

¥448.5

Reel

¥435.2

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

I2C

YY-MM-DD-dd

HH:MM:SS (24 hr)

8 B

Backup Switching

1.3 V

5.5 V

- 40 C

+ 85 C

RV-3129

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock Serial Alarm Real-Time Clock

DS1305EN+
Analog Devices / Maxim Integrated
1: ¥1,852
2,930In Stock

Mfr. Part #
DS1305EN+

Mouser Part #
700-DS1305EN

Analog Devices / Maxim Integrated

Real Time Clock Serial Alarm Real-Time Clock

Datasheet

2,930In Stock

¥1,852

¥1,448.4

¥1,388.6

¥1,212.5

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

DS1305EN

SMD/SMT

Tube

Real Time Clock RTC IC with 400 kHz I2C interface featuring 64 byte SRAM in HXSON10 package.

PCF85363ATL/AX
NXP Semiconductors
1: ¥219.3
82,576In Stock

Mfr. Part #
PCF85363ATL/AX

Mouser Part #
771-PCF85363ATL/AX

NXP Semiconductors

Real Time Clock RTC IC with 400 kHz I2C interface featuring 64 byte SRAM in HXSON10 package.

Datasheet

82,576In Stock

Cut Tape

¥219.3

¥171.1

¥158.8

¥148.2

View

Reel

¥123.7

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Serial 2-Wire, I2C

YY-MM-DD-dd

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

64 B

DFN2626-10

Backup Switching

900 mV

5.5 V

- 40 C

+ 85 C

PCF85363A

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 2-Wire Real Time Clock IC

R2023T-E2-F
Nisshinbo
1: ¥247.5
3,003In Stock
2,000Expected 8/5/2026

Mfr. Part #
R2023T-E2-F

Mouser Part #
848-R2023TE2F

Nisshinbo

Real Time Clock 2-Wire Real Time Clock IC

Datasheet

3,003In Stock

2,000Expected 8/5/2026

Cut Tape

¥247.5

¥181

¥163.9

¥145.5

Reel

¥133.2

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Serial 2-Wire, I2C

YY-MM-DD-dd

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

TSSOP-10

No Backup Switching

1.7 V

5.5 V

- 40 C

+ 85 C

R2023T

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock 4-Wire Real Time Clock IC

RV5C348A-E2-F
Nisshinbo
1: ¥272.4
1,839In Stock

Mfr. Part #
RV5C348A-E2-F

Mouser Part #
848-RV5C348AE2F

Nisshinbo

Real Time Clock 4-Wire Real Time Clock IC

Datasheet

1,839In Stock

Cut Tape

¥272.4

¥199.3

¥181

¥159.6

Reel

¥131.7

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Serial 4-Wire, SPI

YY-MM-DD-dd

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

SSOP-10

Backup Switching

2 V

5.5 V

- 40 C

+ 85 C

RV5C348

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock I2C GP RTCC 64B SRAM ID

MCP79400-I/MS
Microchip Technology
1: ¥166.1
5,460In Stock

Mfr. Part #
MCP79400-I/MS

Mouser Part #
579-MCP79400IMS

Microchip Technology

Real Time Clock I2C GP RTCC 64B SRAM ID

Learn More

Datasheet

5,460In Stock

¥166.1

¥152.8

¥144.5

Min.: 1
Mult.: 1

Serial 2-Wire, 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 I2C GP RTCC 1Kb EE 64B SRAM EUI-64

MCP79412-I/MS
Microchip Technology
1: ¥196
3,920In Stock

Mfr. Part #
MCP79412-I/MS

Mouser Part #
579-MCP79412IMS

Microchip Technology

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

Learn More

Datasheet

3,920In Stock

¥196

¥179.4

¥171.1

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 I2C GP RTCC 1Kb EE 64B SRAM EUI-64

MCP79412-I/ST
Microchip Technology
1: ¥196
4,617In Stock

Mfr. Part #
MCP79412-I/ST

Mouser Part #
579-MCP79412IST

Microchip Technology

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

Learn More

Datasheet

4,617In Stock

¥196

¥179.4

¥171.1

¥169.4

Min.: 1
Mult.: 1

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 2Kb EE 64B SRAM WD TED EUI-64

MCP795W22-I/ST
Microchip Technology
1: ¥328.9
5,160In Stock

Mfr. Part #
MCP795W22-I/ST

Mouser Part #
579-MCP795W22-I/ST

Microchip Technology

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

Learn More

Datasheet

5,160In Stock

¥328.9

¥305.6

¥304

¥302.3

Quote

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 4-wire Real Time Clock Module

R2045S-E2-FE
Nisshinbo
1: ¥784
4,191In Stock

Mfr. Part #
R2045S-E2-FE

Mouser Part #
848-R2045S-E2-FE

Nisshinbo

Real Time Clock 4-wire Real Time Clock Module

Datasheet

4,191In Stock

Cut Tape

¥784

¥593

¥544.8

¥491.7

Reel

¥413.6

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Serial 4-Wire

YY-MM-DD-dd

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

No Backup Switching

1.7 V

5.5 V

- 40 C

+ 85 C

R2045S/D

SMD/SMT

Reel, Cut Tape, MouseReel

Real Time Clock RTCs 3725 10-SMD I2C HH:MM:SS (12/24 hr) YY-MM-DD-dd

AB-RTCMC-32.768KHZ-EOZ9-S3-HAT
ABRACON
1: ¥1,574.6
314In Stock

Mfr. Part #
AB-RTCMC-32.768KHZ-EOZ9-S3-HAT

Mouser Part #
815-2768KHZEOZ9S3HAT

ABRACON

Real Time Clock RTCs 3725 10-SMD I2C HH:MM:SS (12/24 hr) YY-MM-DD-dd

Datasheet

314In Stock

Cut Tape

¥1,574.6

¥1,225.8

¥1,137.8

¥1,041.4

Reel

¥906.9

View

Min.: 1
Mult.: 1

: 1,000

Serial 4-Wire, SPI

YY-MM-DD-dd

HH:MM:SS (24 hr)

Backup Switching

1.1 V

5.5 V

- 40 C

+ 85 C

AB-RTCMC

SMD/SMT

Reel, Cut Tape

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

DS1338Z-3+
Analog Devices / Maxim Integrated
1: ¥1,264
3,087In Stock

Mfr. Part #
DS1338Z-3+

Mouser Part #
700-DS1338Z-3

Analog Devices / Maxim Integrated

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

Datasheet

3,087In Stock

¥1,264

¥975

¥903.6

¥820.5

View

Min.: 1
Mult.: 1

I2C

YY-MM-DD-dd

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

56 B

SOIC-8

Backup Switching

2.7 V

5.5 V

- 40 C

+ 85 C

DS1338Z

SMD/SMT

Tube

Real Time Clock I C Serial Real-Time Clock

DS1337C#T&R
Analog Devices / Maxim Integrated
1: ¥1,353.7
1,408In Stock

Mfr. Part #
DS1337C#T&R

Mouser Part #
700-DS1337C#T&R-

Analog Devices / Maxim Integrated

Real Time Clock I C Serial Real-Time Clock

Learn More

Datasheet

1,408In Stock

Cut Tape

¥1,353.7

¥1,048.1

¥951.8

¥887

View

Reel

¥822.2

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

I2C

YY-MM-DD-dd

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

SO-16

No Backup Switching

1.8 V

5.5 V

- 40 C

+ 85 C

DS1337C

SMD/SMT

Reel, Cut Tape, MouseReel

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
114 B
128 B
160 B
236 B
242 B
256 B

3.2 mm x 2.5 mm x 1 mm
DFN-16
DFN-20
DFN2626-10
DFN-8
HWSON-8
LGA-10
MSOP-10
MSOP-8
PLCC-28
PowerCap Module-34
QFN0202-18
QFN023023-16
QFN-16
QFN1818-12
SMD-10
SNT-A-8
SO-16
SO-20
SO-24

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
BQ32000
BQ32002
BQ3285
BQ3285E
BQ4802LY
BQ4802Y