Datasheet4U Logo Datasheet4U.com

HA16129FPJ Datasheet Single Watchdog Timer

Manufacturer: Hitachi Semiconductor (now Renesas)

Overview: HA16129FPJ Single Watchdog Timer.

General Description

The HA16129FPJ is a watchdog timer IC that monitors a microprocessor for runaway.

In addition to the watchdog timer function, the HA16129FPJ also provides a function for supplying a high-precision stabilized power supply to the microprocessor, a power on reset function, a power supply voltage monitoring function, and a fail-safe function that masks the microprocessor outputs if a runaway is detected.

Functions • Watchdog timer (WDT) function Monitors the P-RUN signal output by the microprocessor, and issues an auto-reset (RES ) signal if a microprocessor runaway is detected.

Key Features

  • High-precision output voltage: 5.0V ± 1.5% The WDT supports both frequency and duty detection schemes. High-precision power supply monitoring function: 4.625V ± 0.125V Built-in OUTE function All functions can be adjusted with external resistors and/or capacitors. Pin Arrangement P-RUN Rf Cf RR CR RT CRES GND Voadj OUTE 1 2 3 4 5 6 7 8 9 10 (Top view) 20 19 18 17 16 15 14 13 12 11 STBY STBYadj RES NMI NMIadj NMIsns VOUT CONT CS VCC 2 HA1612.

HA16129FPJ Distributor