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-8731LC:B3

IC RTC CALENDAR I2C 12VSOJ

2.96

Epson RTC-4543SA:A:PURE SN

IC RTC CLK/CALENDAR SPI 14-SOP

2.95

Epson RX-8803SA:UC3 PURE SN

IC RTC CALENDAR I2C 14SOP

2.9

Renesas Electronics America Inc. ISL12024IVZ

IC RTC CLK/CALENDAR I2C 8-TSSOP

2.81

Epson RX-8571SA:B PURE SN

IC REAL TIME CLOCK/CALENDAR

2.77

Epson RX-4571SA:B PURE SN

IC REAL TIME CLOCK/CALENDAR

2.77

Epson RX-4571LC:B PURE SN

IC REAL TIME CLOCK/CALENDAR

2.75

Epson RX-8035SA:AA3:PURE SN

IC RTC EVENT REC I2C 14-SOP

2.74