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 DS12CR887-33+

IC RTC CLK/CALENDAR PAR 24-EDIP

10.57

Maxim Integrated DS1501WZN+

IC RTC CLK/CALENDAR PAR 28-SOIC

10.69

Maxim Integrated DS12887+

IC RTC CLK/CALENDAR PAR 24-EDIP

10.11

Maxim Integrated DS12C887+

IC RTC CLK/CALENDAR PAR 24-EDIP

9.77

Maxim Integrated DS3231SN#

IC RTC CLK/CALENDAR I2C 16-SOIC

9.77

Maxim Integrated DS3234SN#

IC RTC CLK/CALENDAR SPI 20-SOIC

9.28

Maxim Integrated DS12887A+

IC RTC CLK/CALENDAR PAR 24-EDIP

10.02

Maxim Integrated DS3232SN#

IC RTC CLK/CALENDAR I2C 20-SOIC

9.14