General Description

The DS1372 is a 32-bit binary up counter and 24-bit down counter with a unique 64-bit ID. The counters, ID, configuration, and status registers are accessed using an I2C serial interface. The DS1372 includes a SQW/INT open-drain output that can output either a square wave at one of four predefined frequencies, or it can output an active-low signal when the 24-bit down counter reaches 0.

Features

♦ Compliant with Microsoft Windows Media® DRM 10 for Portable Devices

♦ 32-Bit Binary Counter

♦ Programmable Alarm

♦ 64-Bit Factory-Programmed ID

♦ Interrupt Output

♦ I2C Serial Interface

♦ Two Selectable I2C Addresses

♦ 2.4V to 5.5V Operating Voltage Range

♦ 1.3V to 5.5V Timekeeping Operating Range

♦ -40°C to +85°C Operating Temperature Range

♦ 8-Pin µSOP

Applications

    Portable Audio and Video Players