HA16117F Datasheet (PDF) Download
Hitachi Semiconductor
HA16117F

Description

The HA16117F Series of ICs make a micro-processor (MPU) system fail-safe by monitoring its power supply to detect voltage drops, and monitoring a P-RUN (program running) pulse to detect system crashes.

Key Features

  • Low power consumption : Operating (ACC pin low) = 0.5 mW (Typ) : Standby (ACC pin high) = 0.2 mW (Typ)
  • Watchdog timer on/off control by ACC input signal
  • Independent auto-reset high and low times (tRH and tRL)
  • Watchdog monitoring by frequency filtering (independent of duty cycle)
  • High-precision low voltage detection (±2%)
  • Space- and weight-saving 8-pin SOP package HA16117F Series