DS1339B Datasheet - Maxim Integrated

DS1339B Serial Real-Time Clock

The DS1339B serial real-time clock (RTC) is a lowpower clock/date device with two programmable timeof-day alarms and a programmable square-wave output. Address and data are transferred serially through an I2C bus. The clock/date provides seconds, minutes, hours, day, date, month, and year informatio.

DS1339B Features

* Drop-In Replacement for DS1339

* Supports High-ESR Crystals Up to 100kΩ to Allow Crystals to be Optimized for Cost and Space

* Completely Manages All Timekeeping Functions

* Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week

DS1339B-MaximIntegrated.pdf