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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Epson RX-8581NB:B I2C-BUS

IC REAL TIME CLOCK/CALENDAR

3.79

Maxim Integrated DS3231MZ+TRL

IC RTC CLK/CALENDAR I2C 8-SOIC

3.78

Epson RX-8035LC:B PURE SN

IC RTC RECORDER I2C SER 12VSOJ

3.75

Epson RX-4035LC:BB PURE SN

IC REAL TIME CLOCK/CALENDAR

3.75

Maxim Integrated DS3232MZ/V+T

IC RTC CLK/CALENDAR I2C 8-SOIC

3.72

Maxim Integrated DS3231MZ/V+T

IC RTC CLK/CALENDAR I2C 8-SOIC

3.72

Epson RTC-8564NB:BB ROHS

IC REAL TIME CLOCK/CALENDAR

3.67

Epson RX-4045NB:AAB PURE SN

IC REAL TIME CLOCK/CALENDAR

3.63