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HA16113FPJ Datasheet Dual Watchdog Timers

Manufacturer: Hitachi Semiconductor (now Renesas)

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General Description

Pin No.

Symbol 1 2 3 P-RUN1 Cf1 Rf Function Input from main CPU to watchdog timer 1 (WDT1) For connecting capacitor Cf1 to determine WDT1 filter characteristic (frequency band) For connecting common bias resistor Rf to determine WDT1 and WDT2 filter characteristics (frequency band), power-on reset time (t on , common to RES1 and RES2 ), clock-off time of auto-reset circuits 1 and 2, reset high time (tRH1 and t RH2),reset low time (tRL1 and t RL2), and reset pulse delay at voltage drop and recovery.

Use the resistor value from 100 kΩ to 500 kΩ.

Overview

HA16113FPJ Dual Watchdog Timers The HA16113FPJ is a multifunction device that provides microprocessor systems with the necessary regulated power supply, monitors the supply voltage, and generates power-on reset and watchdog reset signals.

It is ideally suited for battery-operated systems such as instrumentation systems.

Key Features

  • Simultaneous or independent control of auto-reset outputs. Precisely regulated output voltage and accurate NMI trigger voltage (both ±2%). Low-voltage control with NMI, simultaneous RES1 and RES2, and STBY outputs. Independently selectable durations for power-on reset and auto-reset: power-on duration is common to both reset outputs; auto-reset durations can be selected independently.
  • Reset command input pin (CONT) for second reset output (RES2).

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