HA16117F Datasheet PDF (CMOS Watchdog Timer) | Download Hitachi Semiconductor HA16117F

HA16117F - CMOS Watchdog Timer

This page provides the datasheet information for the HA16117F, a member of the HA1 CMOS Watchdog Timer family.

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.

Datasheet Details

Part number	HA16117F
Manufacturer	Hitachi Semiconductor
File Size	249.50 KB
Description	CMOS Watchdog Timer
Datasheet	HA16117F Datasheet
Additional preview pages of the HA16117F datasheet.

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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.

Published: Mar 22, 2005 |