HT1382 8DIP

The HT1382 is a low power real time clock device with two serial interface: I2C or 3-wire. The interface mode is selected by the chosen chip version. The device provides both clock and calendar information in BCD format and also includes alarm functions. The calendar is accurate until the year 2099 and includes automatic leap year correction.

An external 32768Hz crystal is used as the device oscillator for device timing for which is provided an integrated crystal load capacitance of 12.5pF. The device includes a crystal oscillator temperature compensation function and internal power control circuitry detects power failures and automatically switches to the battery supply when a power failure occurs.

Features

Real Time Clock/Calendar Functions — Includes: Sec, Minutes, Hours, Day, Date, Month,  and year in BCD format
Clock operating voltage: 2.0V~5.5V
Supply voltage VDD=2.7V~5.5V
Automatic leap year correction, valid until year 2099
Automatic supply switch over
Integrated oscillator load capacitors – CL=12.5pF
Clock compensation
Programmable alarm and interrupt function
15 selectable frequency outputs
4 Bytes EEPROM for user
Serial commutation via I2C or 3-wire interface
8-pin DIP, SOP and MSOP package for I2C interface
10-pin MSOP package for 3-wire interface