General Description

The DS1388 I2C real-time clock (RTC), supervisor, and EEPROM is a multifunction device that provides a clock/calendar, programmable watchdog timer, power supply monitor with reset, and 512 bytes of EEPROM. The clock provides hundredths of seconds, seconds, minutes, and hours, and operates in 24-hour or 12-hour format with an AM/PM indicator.

Features

♦Fast (400kHz) I2C Interface

♦RTC Counts Hundredths of Seconds, Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap Year Compensation Valid Up to 2100

♦Programmable Watchdog Timer

♦Automatic Power-Fail Detect and Switch Circuitry

♦Reset Output with Pushbutton Reset Input Capability

♦512 x 8 Bits of EEPROM

♦Integrated Trickle-Charge Capability for Backup Supply

♦Three Operating Voltages: 5.0V, 3.3V, and 3.0V

♦Low Timekeeping Voltage Down to 1.3V

♦-40°C to +85°C Temperature Range

♦UL Recognized