DS1338 Datasheet (Maxim)

DS1338, I2C RTC

The DS1338 serial real-time clock (RTC) is a lowpower, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM.

Address and data are transferred serially through an I2C interface.

The clock/calendar provides seconds, minutes, hours, day, date, month, and year information.

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DS1338 Features

* Completely Manages All Timekeeping Functions o RTC Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2100 o 56-Byte, Battery-Backed, GeneralPurpose RAM with Unlimited Writes o Programmable Square-Wave Output Signal