General Description
The DS1371 is a 32-bit binary counter that is designed to continuously count time in seconds. An additional counter that can generate a periodic alarm or serve as a watchdog timer is also provided. If enabled as a watchdog timer, the watchdog strobe input pin provides a hardware reset of the counter. If disabled, this counter can be used as 3 Bytes of generalpurpose RAM. A configurable output can be used as an interrupt or provide a square wave at one of four selectable frequencies. The device is programmed serially through a I2C bidirectional bus.

Features
■ 32-Bit Binary Counter
■ 24-Bit Binary Counter Provides Periodic Alarm, Watchdog Timer, or RAM
■ Strobe Input to Reset Watchdog Timer
■ Single Output Configurable as Interrupt or Square Wave
■ I2C Serial Interface
■ Low-Voltage Operation
■ Operating Temperature Range: -40°C to +85°C
■ Available in 8-Pin μSOP

Applications
    Servers
    Point-of-Sale Equipment
    Portable Instruments
    Elapsed Time Measurements