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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Renesas Electronics America Inc. ISL12026AIVZ

IC RTC CLK/CALENDAR I2C 8-TSSOP

2.09

Epson RX-8035SA:AA0:PURE SN

IC RTC EVENT REC I2C 14-SOP

2.07

Maxim Integrated DS12R885S-5+T&R

IC RTC CLK/CALENDAR PAR 24-SOIC

2.04

Epson RX-8581SA:B0:PURE SN

IC RTC CLK/CALENDAR I2C 14-SON

2.07

Maxim Integrated DS12R885S-33+T&R

IC RTC CLK/CALENDAR PAR 24-SOIC

2.04

Epson RX-8035SA:AC0 PURE SN

IC RTC RECORDER I2C SER 14SOP

2.03

Epson RX-8025SA:AA0:PURE SN

IC RTC CLK/CALENDAR I2C 14-SOP

1.97

Epson RX-8025SA:AC0

IC RTC CLK/CALENDAR I2C 14-SOP

1.97