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DS1338 - I2C RTC

General Description

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.

Key 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.
  • Surface-Mount Package with an Integrated Crystal (DS1338C) Saves Additional Space and Simplifies Design.
  • Interfaces with Most Microcontrollers o I2C Serial Interface.
  • Low-Po.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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DS1338 I2C RTC with 56-Byte NV RAM GENERAL DESCRIPTION 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. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator.