TC71 - TelCom

TC71 SYSTEM SUPERVISOR

The TC70/71 is a fully-integrated power supply monitor, watchdog and battery backup circuit in a space-saving 8-pin package. When power is initially applied, the TC70/71 holds the processor in its reset state for a minimum of 500msec after VCC is in tolerance to ensure stable system start-up. After start-up, processor sanity is monitored by the on-board watc.

Features

s Maximum Functional Integration: Precision Power Supply Monitor, Watchdog Timer, External RESET Override, Threshold Detector and Battery Backup Controller in an 8-Pin Package Generates Power-on RESET and Guards Against Unstable Processor Operation Resulting from Power "Brown-out" Automatically Halts and Restarts an Out-ofControl Microprocessor Output Can be Wire-ORed, or Hooked to Manual RESET Pushbutton Switch Watchdog Disable Pin for Easier Prototyping (TC70) Voltage Monitor for Power Fail or Low Battery Warning (TC71) Available in 8-Pin Plastic DIP or 8-Pin SOIC Packages Cost Effective 2 .