DS1371

m o .c U 4 t e e h www.maxim-ic.com S a t General aDescription D is a 32-bit binary counter that is The DS1371 . designed w to continuously count time in seconds. Anwadditional counter that can generate a periodic alarm or serve as a watchdog timer is w DS1371 2-Wire, 32-Bit Binary Counter Watchdog Clock 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 2-Wire Serial Interface Low-Voltage Operation Operating Temperature Range: -40°C to +85°C Available in 8-Pin mSOP 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 2-wire bidirectional bus. Applications Servers Point-of-Sale Equipment Portable Instruments Elapsed Time Measurements Typical Operating Circuit m o .c U 4 t e e h S a t a .D w w w Ordering Information PART TEMP RANGE DS1371U -40°C to +85°C PINPACKAGE 8 µSOP TOP MARK DS1371 Pin Configuration TOP VIEW X1 X2 1 2 3 4 8 7 6 5 VCC DS1371 SQW/INT WDS SCL GND Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be ...