HA16113FPJ

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. Functions Regulated power supply Power-on reset Two built-in auto-reset circuits Two built-in watchdog timer circuits (WDT) Output voltage monitoring (LVI) 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). WDT filter function detects minimum pulse width and maximum period of P-RUN input pulses. HA16113FPJ Pin Arrangement P-RUN1 Cf1 Rf CR1 STBYadj STBY RES1 NMI NMIadj Re1 Re2 GND 1 2 3 4 5 6 7 8 9 10 11 12 (Top view) 24 23 22 21 20 19 18 17 16 15 14 13 P-RUN2 Cf2 RR CR2 SW CONT RES2 CRES VOUT VCONT CS VCC Pin 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 resisto...