M51957A,B/M51958A,B
Voltage Detecting, System Resetting IC Series
REJ03D0778-0300 Rev.3.00
Sep 18, 2007
Description
M519...
M51957A,B/M51958A,B
Voltage Detecting, System Resetting IC Series
REJ03D0778-0300 Rev.3.00
Sep 18, 2007
Description
M51957A,B/M51958A,B are semiconductor integrated circuits for resetting of all types of logic circuits such as CPUs, and has the feature of setting the detection
voltage by adding external resistance.
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) (M51957, M51958) 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 c...