FEATURES
Windowed watchdog, 8 timeout options 26 reset threshold options 2.5 V to 5 V in 100 mV increments 4 reset timeout options 1 ms, 20 ms, 140 ms, and 1120 ms (minimum) Manual reset input Open-drain or push-pull RESET outputs Low power consumption Specified over wide temperature range (−40°C to +125°C) Qualified for automotive applications 5-lead SOT-23 package ADM8323 VCC VCC VREF ADM8323/ADM8324 FUNCTIONAL BLOCK DIAGRAMS RESET GENERATOR RESET MR DEBOUNCE WINDOWED WATCHDOG DETECTOR 11802-001 GND WDI Figure 1. APPLICATIONS
Automotive Microprocessor systems Computers Controllers Intelligent instruments Portable equipment VCC ADM8324 VREF RESET GENERATOR RESET MR DEBOUNCE WINDOWED WATCHDOG DETECTOR 11802-002 Free Datasheet GND WDI Figure 2. GENERAL DESCRIPTION
An on-chip watchdog timer checks for activity within a preset timeout window. A reset signal can also be asserted by an external push-button switch through a manual reset input. A watchdog failure results in a low output on the RESET pin.
Analog Devices
