Real Time Clocks

Real Time Clocks (RTCs) provide time and/or date information in almost any electronic device which needs to keep accurate time. The clock types are binary counter, clock/calendar/supervisor, elapsed time counter, phantom time chip, portable system controller, temperature recorder, time event recorder, and timer clock peripheral.  They contain memory sizes ranging from 2 B to 2 MB and have interface options of I2C, Parallel, Serial, SPI, 1-Wire, 2-Wire, 3-Wire, and 4-Wire.

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Maxim Integrated DS3231SN#T&R

IC RTC CLK/CALENDAR I2C 16-SOIC

0

Maxim Integrated DS3234SN#T&R

IC RTC CLK/CALENDAR SPI 20-SOIC

0

Maxim Integrated DS3232SN#T&R

IC RTC CLK/CALENDAR I2C 20-SOIC

0

Maxim Integrated DS1683S+

IC RTC ELAPSED CNT I2C 8-SOIC

4.6

Maxim Integrated DS3234S#T&R

IC RTC CLK/CALENDAR SPI 20-SOIC

0

Maxim Integrated DS1302ZN+

IC RTC CLK/CALENDAR SER 8-SOIC

4.22

Maxim Integrated DS1308U-33+

IC RTC CLK/CALENDAR I2C 8-UMAX

4.01

Maxim Integrated DS1339AU+

IC RTC CLK/CALENDAR I2C 8-USOP

3.93