M51953A Datasheet | Renesas

M51953A,B/M51954A,B Voltage Detecting, System Resetting IC Series REJ03D0776-0300 Rev.3.00 Sep 18, 2007 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, microputer, 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 Remended Operating Condition - Supply voltage range: 2 V to 17 V Pin Arrangement M51953AL/BL M51954AL/BL M51953AFP/BFP M51954AFP/BFP 5 Output 4 Delay capacitor 3 GND 2 NC 1 Power-supply (Top view) Outline: 5P5T NC 1 8 NC NC 2 7 Power-supply NC 3 6 Output GND...