M51953A Datasheet PDF - Renesas Electronics

●Description

●M51953A,B/M51954A,B are semiconductor integrated circuits designed for detecting supply voltage and resetting all types of logic circuits such as CPUs. They include a built-in delay circuit to provide the desired retardation time simply by adding an external capacitor. They fined extensive applications, including battery checking circuit, level detecting circuit and waveform shaping

●circuit.

●Features

●•  Few external parts

●•  Large delay time with a capacitor of small capacitance (td ≈100 ms, at 0.33 µF) (M51953, M51954)

●•  Low threshold operating voltage (Supply voltage to keep low-state at low supply voltage):

●0.6 V (Typ) at RL= 22 kΩ

●•  Wide supply voltage range: 2 V to 17 V

●•  Wide application range

●Application

●•  Reset circuit of Pch, Nch, CMOS, microcomputer, CPU and MCU, Reset of logic circuit, Battery check circuit, switching circuit back-up voltage, level detecting circuit, waveform shaping circuit, delay waveform generating circuit, DC/DC converter, over voltage protection circuit