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 ...

ISL12029IVAZ

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR I2C 14-TSSOP

Tube

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

14-TSSOP (0.173", 4.40mm Width)

14-TSSOP

ISL12029IV30AZ

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR I2C 14-TSSOP

Tube

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

14-TSSOP (0.173", 4.40mm Width)

14-TSSOP

ISL12029IV27AZ

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR I2C 14-TSSOP

Tube

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

14-TSSOP (0.173", 4.40mm Width)

14-TSSOP

ISL12028IVZ

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR I2C 14-TSSOP

Tube

Last Time Buy

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

14-TSSOP (0.173", 4.40mm Width)

14-TSSOP

ISL12027IV27AZ

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR I2C 8-TSSOP

Tube

Last Time Buy

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

ISL12028IVAZ

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR I2C 14-TSSOP

Tube

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

14-TSSOP (0.173", 4.40mm Width)

14-TSSOP

ISL12024IVZ

960+

2.75039

Increments of 960

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR I2C 8-TSSOP

Tube

Active

Clock/Calendar

Alarm, Leap Year, Unique ID

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

ISL12027IVZ

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR I2C 8-TSSOP

Tube

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

ISL12027IV30AZ

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR I2C 8-TSSOP

Tube

Last Time Buy

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

ISL12027IVAZ

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR I2C 8-TSSOP

Tube

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

ISL12023IVZ

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR I2C 14-TSSOP

Tube

Obsolete

Clock/Calendar

Alarm, Daylight Savings, Leap Year, SRAM

128B

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

14µA ~ 15µA @ 3V ~ 5V

-40°C ~ 85°C

Surface Mount

14-TSSOP (0.173", 4.40mm Width)

14-TSSOP

ISL12028IV30AZ

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR I2C 14-TSSOP

Tube

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

14-TSSOP (0.173", 4.40mm Width)

14-TSSOP

ISL12028IV27AZ

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR I2C 14-TSSOP

Tube

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

14-TSSOP (0.173", 4.40mm Width)

14-TSSOP

ISL12021CVZ

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR I2C 14-TSSOP

Tube

Obsolete

Clock/Calendar

Alarm, Daylight Savings, Leap Year, SRAM

128B

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

5.5µA ~ 6.5µA @ 3V ~ 5V

-20°C ~ 70°C

Surface Mount

14-TSSOP (0.173", 4.40mm Width)

14-TSSOP

ISL12025IVZ

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR I2C 8-TSSOP

Tube

Obsolete

Clock/Calendar

Alarm, Leap Year, Supervisor, Unique ID, 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

CDP68HC68T1MZ

1+	9.5
10+	8.57941
100+	7.10255
500+	6.1848
1000+	5.38677

Increments of 1

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR SPI 20-SOIC

Tube

Active

Clock/Calendar

Alarm, Leap Year, Square Wave Output, Watchdog Timer

32B

HH:MM:SS (12/24 hr)

YY-MM-DD-dd

SPI

3 V ~ 6 V

2.2 V ~ 6 V

20µA ~ 500µA @ 5V

-40°C ~ 85°C

Surface Mount

20-SOIC (0.295", 7.50mm Width)

20-SOIC

ISL1218IUZ

1+	3.11765
10+	2.8
100+	2.29412
500+	1.95294
1000+	1.64706

Increments of 1

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR I2C 8-MSOP

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-TSSOP, 8-MSOP (0.118", 3.00mm Width)

8-MSOP

ISL1208IB8ZR5291

Leadtime
2-3 weeks

Intersil

IC RTC CLK/CALENDAR I2C 8-SOIC

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-SOIC (0.154", 3.90mm Width)

8-SOIC

X1288V14Z-4.5A

Leadtime
2-3 weeks

Intersil

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

4.5 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

X1288V14Z-2.7

Leadtime
2-3 weeks

Intersil

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

X1288V14Z

Leadtime
2-3 weeks

Intersil

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

4.5 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

M41T66Q6F-Cut

M41T66Q6F

1+	1.7451
10+	1.57059
100+	1.26255
500+	1.03731
1000+	0.85949

Increments of 1

Leadtime
2-3 weeks

STMicroelectronics

IC RTC CLK/CALENDAR I2C 16-QFN

Cut Tape (CT)

Timekeeper®

Active

Clock/Calendar

Alarm, Leap Year, Square Wave Output, Watchdog Timer

HH:MM:SS:hh (24 hr)

YY-MM-DD-dd

I²C, 2-Wire Serial

1.5 V ~ 4.4 V

0.9µA ~ 1.1µA @ 1.5V ~ 4.4V

-40°C ~ 85°C

Surface Mount

16-VFQFN Exposed Pad

16-QFN (3x3)

M41T66Q6F

3000+	0.776912
6000+	0.748137

Increments of 3000

Leadtime
2-3 weeks

STMicroelectronics

IC RTC CLK/CALENDAR I2C 16-QFN

Tape & Reel (TR)

Timekeeper®

Active

Clock/Calendar

Alarm, Leap Year, Square Wave Output, Watchdog Timer

HH:MM:SS:hh (24 hr)

YY-MM-DD-dd

I²C, 2-Wire Serial

1.5 V ~ 4.4 V

0.9µA ~ 1.1µA @ 1.5V ~ 4.4V

-40°C ~ 85°C

Surface Mount

16-VFQFN Exposed Pad

16-QFN (3x3)

PCA2125TS/1,118

Leadtime
2-3 weeks

NXP USA Inc.

IC RTC CLK/CALENDAR SPI 14-TSSOP

Tape & Reel (TR)

Obsolete

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

1.8µA @ 2V ~ 5V

-40°C ~ 125°C

Surface Mount

14-TSSOP (0.173", 4.40mm Width)

14-TSSOP

PCA2125TS/1,112

Leadtime
2-3 weeks

NXP USA Inc.

IC RTC CLK/CALENDAR SPI 14-TSSOP

Tube

Obsolete

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

1.8µA @ 2V ~ 5V

-40°C ~ 125°C

Surface Mount

14-TSSOP (0.173", 4.40mm Width)

14-TSSOP

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