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HA16117F - CMOS Watchdog Timer

Download the HA16117F datasheet PDF. This datasheet also covers the HA1 variant, as both devices belong to the same cmos watchdog timer family and are provided as variant models within a single manufacturer datasheet.

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.

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 Ordering Information The HA16117F Series includes three I.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (HA1-611.pdf) that lists specifications for multiple related part numbers.

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Full PDF Text Transcription

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HA16117F Series CMOS Watchdog Timer 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. Also referred to as watchdog timers, these devices are essential in systems that aim for high levels of crash protection. Fabricated by a CMOS process, they consume little power and are ideally suited for batteryoperated systems. These ICs are available in versions for industrial and communications equipment and automotive applications, as well as for consumer products.
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