DS1338 Overview
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.
DS1338 Key Features
- pletely Manages All Timekeeping Functions o RTC Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Wee
- Surface-Mount Package with an Integrated Crystal (DS1338C) Saves Additional Space and Simplifies Design
- Interfaces with Most Microcontrollers o I2C Serial Interface
- Low-Power Operation Extends Battery Backup Run Time o Automatic Power-Fail Detect and Switch Circuitry