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 DS1248WP-120IND+

IC RTC PHANTOM PAR 34-PCM

47.31

Maxim Integrated DS1248W-120+

IC RTC PHANTOM PAR 32-DIP

37.17

Maxim Integrated DS1556WP-120+

IC RTC CLK/CALENDAR PAR 34-PCM

33.66

Maxim Integrated DS1244WP-120+

IC RTC PHANTOM PAR 34-PCM

28.31

Maxim Integrated DS1554P-70IND+

IC RTC CLK/CALENDAR PAR 34-PCM

27.78

Maxim Integrated DS1554WP-120+

IC RTC CLK/CALENDAR PAR 34-PCM

22.71

Maxim Integrated DS1315EN-33+

IC RTC PHANTOM PAR 20-TSSOP

18.21

Maxim Integrated DS1501WZ+

IC RTC CLK/CALENDAR PAR 28-SOIC

9.9