Clock/Timing - Real Time Clocks

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Manufacturer	Packaging	Series	Part Status	Type	Features	Memory Size	Time Format	Date Format	Interface	Voltage - Supply	Voltage - Supply, Battery	Current - Timekeeping (Max)	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package

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Supplier Part Number

Manufacturer Part Number

Price

Stock

Manufacturer

Description

Packaging

Series

Part Status

Type

Features

Memory Size

Time Format

Date Format

Interface

Voltage - Supply

Voltage - Supply, ...

Current - Timekeeping ...

Operating Temperature ...

Mounting Type

Package / Case

Supplier Device Package ...

KCQCD-4YE-19

Leadtime
2-3 weeks

P51-SO-OA

IC RTC CLK CALENDAR I2C 20-VSOJ

Tape & Reel TR

Obsolete

Clock Calendar

Alarm, Y2K

HH:MM:SS

YY-MM-DD-dd

I²C, 2-Wire Serial

1.8 V ~ 5.5 V

0.7µA ~ 0.8µA @ 3V ~ 5V

-40°C ~ 85°C

Surface Mount

20-LSSOJ 0.213 , 5.40mm Width

20-VSOJ

DS1672S-3 T&R

2TRCY-1T-F3Z

IC RTC BINARY CNT I2C 8-SOIC

Tape & Reel TR

Binary Counter

Trickle-Charger

Binary

I²C, 2-Wire Serial

2.7 V ~ 3.3 V

1.3 V ~ 3.63 V

500µA @ 3.3V

-40°C ~ 85°C

Surface Mount

8-SOIC 0.154 , 3.90mm Width

8-SOIC

YQ4-98G-YMY

1+	18.6373
10+	17.1294
100+	14.4671
500+	12.8695

Increments of 1

Leadtime
2-3 weeks

O9VL-RRFY-FD

IC RTC CLK CALENDAR PAR 28DIP

Tube

Timekeeper®

Active

Clock Calendar

Leap Year, Watchdog Timer

HH:MM:SS 24 hr

YY-MM-DD-dd

Parallel

4.75 V ~ 5.5 V

3mA @ 4.7V ~ 5.5V

0°C ~ 70°C

Through Hole

28-DIP Module 0.600 , 15.24mm

28-PCDIP, CAPHAT®

DS12885S+T&R

1000+

3.54

Increments of 1000

Leadtime
2-3 weeks

UME0-ZN-MD

IC RTC CLK CALENDAR PAR 24-SOIC

Tape & Reel TR

Active

Clock Calendar

Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output

114B

HH:MM:SS 12 24 hr

YY-MM-DD-dd

Parallel

4.5 V ~ 5.5 V

2.5 V ~ 4 V

15mA @ 4.5V ~ 5.5V

0°C ~ 70°C

Surface Mount

24-SOIC 0.295 , 7.50mm Width

24-SOIC

X1288V14-2.7

7J7EZ-OMF-A6J

IC RTC CLK CALENDAR I2C 14-TSSOP

Tube

Obsolete

Clock Calendar

Alarm, Leap Year, Supervisor, Watchdog Timer

HH:MM:SS:hh 12 24 hr

YY-MM-DD-dd

I²C, 2-Wire Serial

2.7 V ~ 5.5 V

1.8 V ~ 5.5 V

10µA ~ 20µA @ 2.7V ~ 5V

0°C ~ 70°C

Surface Mount

14-TSSOP 0.173 , 4.40mm Width

14-TSSOP

DS1340Z-3

Leadtime
2-3 weeks

KE2-QJ3-8WN

IC RTC CLK CALENDAR I2C 8-SOIC

Tube

Obsolete

Clock Calendar

Leap Year, Trickle-Charger

HH:MM:SS 24 hr

YY-MM-DD-dd

I²C, 2-Wire Serial

2.7 V ~ 5.5 V

1.3 V ~ 3.7 V

125µA @ 3.3V

-40°C ~ 85°C

Surface Mount

8-SOIC 0.154 , 3.90mm Width

8-SOIC

MCP79410T-I MNY-Cut

MCP79410T-I MNY

1+	0.990196
25+	0.918824
100+	0.896373

Increments of 1

Leadtime
2-3 weeks

MZ9-PMDP-QE

IC RTC CLK CALENDAR I2C 8-TDFN

Cut Tape CT

Active

Clock Calendar

Alarm, Leap Year, Square Wave Output, SRAM, Unique ID

64B

HH:MM:SS 12 24 hr

YY-MM-DD-dd

I²C, 2-Wire Serial

1.8 V ~ 5.5 V

1.3 V ~ 5.5 V

1.2µA @ 3.3V

-40°C ~ 85°C

Surface Mount

8-WFDFN Exposed Pad

8-TDFN 2x3

28 2PU PZ

3300+

0.706863

Increments of 3300

5NT-O0WA-F9

IC RTC CLK CALENDAR I2C 8 SOIC

Tape & Reel TR

Active

Clock Calendar

Alarm, Leap Year, Square Wave Output, SRAM

64B

HH:MM:SS 12 24 hr

YY MM DD dd

I²C, 2 Wire Serial

1.8 V ~ 5.5 V

1.3 V ~ 5.5 V

1.2µA @ 3.3V

40°C ~ 125°C

Surface Mount

8 SOIC 0.154 , 3.90mm Width

8 SOIC

0U2C-SL-ND

Leadtime
2 3 weeks

ZGCO-UZK-CI

IC RTC CLK CALENDAR PAR 44 SOH

Tube

Timekeeper®

Obsolete

Clock Calendar

Alarm, Leap Year, Watchdog Timer

HH:MM:SS 24 hr

YY MM DD dd

Parallel

4.5 V ~ 5.5 V

3mA @ 4.5V ~ 5.5V

40°C ~ 85°C

Surface Mount

44 BSOP 0.337 , 8.56mm Width requires SNAPHAT

44 SOH

ISL12027IVAZ-T

Leadtime
2-3 weeks

YJX2-RX-QE

IC RTC CLK CALENDAR I2C 8-TSSOP

Tape & Reel TR

Obsolete

Clock Calendar

Alarm, Leap Year, Supervisor, Watchdog Timer

HH:MM:SS 12 24 hr

YY-MM-DD-dd

I²C, 2-Wire Serial

2.7 V ~ 5.5 V

1.8 V ~ 5.5 V

10µA ~ 20µA @ 2.7V ~ 5.5V

-40°C ~ 85°C

Surface Mount

8-TSSOP 0.173 , 4.40mm Width

8-TSSOP

X1227S8

79C-DS6D-2G4

IC RTC CLK CALENDAR I2C 8-SOIC

Tube

Obsolete

Clock Calendar

Alarm, Leap Year, Supervisor, Watchdog Timer

HH:MM:SS 12 24 hr

YY-MM-DD-dd

I²C, 2-Wire Serial

4.5 V ~ 5.5 V

1.8 V ~ 5.5 V

10µA ~ 20µA @ 2.7V ~ 5V

0°C ~ 70°C

Surface Mount

8-SOIC 0.154 , 3.90mm Width

8-SOIC

WSTZI-5J9-SL

Leadtime
2-3 weeks

TWVY-M02-PXH

IC RTC CLK CALENDAR PAR 24-DIP

Tube

Obsolete

Clock Calendar

Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output

114B

HH:MM:SS 12 24 hr

YY-MM-DD-dd

Parallel

4.5 V ~ 5.5 V

2.5 V ~ 4 V

300µA @ 5V

0°C ~ 70°C

Through Hole

24-DIP 0.600 , 15.24mm

24-PDIP

PT7C4372ALEX

2500+

0.576471

Increments of 2500

Leadtime
2-3 weeks

WV-EL-GB4

IC RTC CLK CALENDAR I2C TSSOP

Tape & Reel TR

Active

Clock Calendar

Alarm, Leap Year

HH:MM:SS 12 24 hr

YY-MM-DD-dd

I²C, 2-Wire Serial

1.8 V ~ 6 V

0.8µA @ 3V

-40°C ~ 85°C

Surface Mount

8-TSSOP 0.173 , 4.40mm Width

8-TSSOP

ISL12057IUZ-T

2500+

1.09853

Increments of 2500

Leadtime
2-3 weeks

VTL-Q2-6G9

IC RTC CLK CALENDAR I2C 8-MSOP

Tape & Reel TR

Active

Clock Calendar

Alarm, Leap Year

HH:MM:SS 12 24 hr

YY-MM-DD-dd

I²C, 2-Wire Serial

1.8 V ~ 3.6 V

0.65µA @ 1.8V

-40°C ~ 85°C

Surface Mount

8-TSSOP, 8-MSOP 0.118 , 3.00mm Width

8-MSOP

ZAI-S4-B5R

8IS8-KQ-L2

IC RTC CLK CALENDAR PAR 48-LQFP

Tape & Reel TR

Obsolete

Clock Calendar

Alarm, Leap Year, Watchdog Timer, Y2K

HH:MM:SS 24 hr

YY-MM-DD-dd

Parallel

2.97 V ~ 3.63 V

2.5 V ~ 3.7 V

2mA @ 3.3V

-40°C ~ 85°C

Surface Mount

48-LQFP

48-LQFP 48-TQFP 7x7

DS1643P-85+

Leadtime
2-3 weeks

EEH-GN3I-F2Q

IC RTC CLK CALENDAR PAR 34-PCM

Tube

Active

Clock Calendar

Leap Year, NVSRAM

8KB

HH:MM:SS 24 hr

YY-MM-DD-dd

Parallel

4.5 V ~ 5.5 V

3mA @ 5V

0°C ~ 70°C

Surface Mount

34-PowerCap™ Module

34-PowerCap Module

ISL1218IBZ

1+	2.96078
10+	2.6598
100+	2.17941
500+	1.85529
1000+	1.56471

Increments of 1

Leadtime
2-3 weeks

J62A6-S6-WG

IC RTC CLK CALENDAR I2C 8-SOIC

Tube

Active

Clock Calendar

Alarm, Leap Year, SRAM

HH:MM:SS 12 24 hr

YY-MM-DD-dd

I²C, 2-Wire Serial

2.7 V ~ 5.5 V

1.8 V ~ 5.5 V

4µA ~ 6µA @ 3V ~ 5V

-40°C ~ 85°C

Surface Mount

8-SOIC 0.154 , 3.90mm Width

8-SOIC

X1288V14I-2.7AT1

Leadtime
2-3 weeks

DI-67-81M

IC RTC CLK CALENDAR I2C 14-TSSOP

Tape & Reel TR

Obsolete

Clock Calendar

Alarm, Leap Year, Supervisor, Watchdog Timer

HH:MM:SS:hh 12 24 hr

YY-MM-DD-dd

I²C, 2-Wire Serial

2.7 V ~ 5.5 V

1.8 V ~ 5.5 V

10µA ~ 20µA @ 2.7V ~ 5V

-40°C ~ 85°C

Surface Mount

14-TSSOP 0.173 , 4.40mm Width

14-TSSOP

PT7C4311WE

700+

0.771176

Increments of 700

Leadtime
2-3 weeks

HY-G2-83

IC RTC CLK CALENDAR I2C SOIC

Tube

Active

Clock Calendar

Leap Year, Square Wave Output, Y2K

56B

HH:MM:SS 24 hr

YY-MM-DD-dd

I²C, 2-Wire Serial

1.2 V ~ 5.5 V

2 V ~ 5.5 V

70µA @ 1.5V ~ 5.5V

-40°C ~ 85°C

Surface Mount

8-SOIC 0.154 , 3.90mm Width

8-SOIC

PCF2123BS 1,512

1+	1.15686
10+	1.02647
25+	0.927451
100+	0.811667
250+	0.712235

Increments of 1

Leadtime
2-3 weeks

II0R-9H-45A

IC RTC CLK CALENDAR SPI 16-HVQFN

Tube

Clock Calendar

Alarm, Leap Year, Square Wave Output, Watchdog Timer

HH:MM:SS 12 24 hr

YY-MM-DD-dd

SPI

1.6 V ~ 5.5 V

0.33µA ~ 0.38µA @ 2V ~ 5V

-40°C ~ 85°C

Surface Mount

16-VFQFN Exposed Pad

16-HVQFN 3x3

HN-53ST-NWE

Leadtime
2 3 weeks

W6-YSN-2UU

IC RTC CLK CALENDAR I2C 8 MSOP

Tube

Obsolete

Clock Calendar

Alarm, Leap Year, SRAM

HH:MM:SS 12 24 hr

YY MM DD dd

I²C, 2 Wire Serial

2.7 V ~ 5.5 V

1.8 V ~ 5.5 V

4µA ~ 6µA @ 3V ~ 5V

40°C ~ 85°C

Surface Mount

8 TSSOP, 8 MSOP 0.118 , 3.00mm Width

8 MSOP

BQ3285LFSS-A1TRG4

2500+

3.0264

Increments of 2500

Leadtime
2-3 weeks

PZVNA-DNYY-5R

IC RTC CLK CALENDAR PAR 24-QSOP

Tape & Reel TR

Last Time Buy

Clock Calendar

Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output

242B

HH:MM:SS 12 24 hr

YY-MM-DD-dd

Parallel

2.7 V ~ 5.5 V

2.4 V ~ 4 V

100µA @ 3V

0°C ~ 70°C

Surface Mount

24-SSOP 0.154 , 3.90mm Width

24-SSOP QSOP

BQ3285ES

1+	6.2451
10+	5.6451
100+	4.67333
500+	4.06951
1000+	3.54441

Increments of 1

9T97-IO-P0I

IC RTC CLK CALENDAR PAR 24-SOIC

Tube

Active

Clock Calendar

Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output

242B

HH:MM:SS 12 24 hr

YY-MM-DD-dd

Parallel

4.5 V ~ 5.5 V

2.5 V ~ 4 V

300µA @ 5V

0°C ~ 70°C

Surface Mount

24-SOIC 0.295 , 7.50mm Width

24-SOIC

PCF8523TS 1,118

2500+	0.538039
5000+	0.511137
12500+	0.491922

Increments of 2500

Leadtime
2-3 weeks

CZKF-TY-EE2

IC RTC CLK CALENDAR I2C 14-TSSOP

Tape & Reel TR

Active

Clock Calendar

Alarm, Leap Year, Watchdog Timer

HH:MM:SS 12 24 hr

YY-MM-DD-dd

I²C, 2-Wire Serial

1.6 V ~ 5.5 V

1.8 V ~ 5.5 V

0.5µA @ 2V ~ 5V

-40°C ~ 85°C

Surface Mount

14-TSSOP 0.173 , 4.40mm Width

14-TSSOP

R2-1K3J-7A

Leadtime
2-3 weeks

KU-GG-XB4

IC RTC CLK CALENDAR PAR 32-DIP

Tube

Obsolete

Clock Calendar

Alarm

HH:MM:SS 24 hr

YY-MM-DD-dd

Parallel

4.5 V ~ 5.5 V

1mA @ 4.5V ~ 5.5V

-40°C ~ 85°C

Through Hole

32-DIP Module 0.61 , 15.49mm

32-DIP Module 18.42x52.96

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