M51955A Datasheet, PDF (1/12 Pages) Mitsubishi Electric Semiconductor – VOLTAGE DETECTING, SYSTEM RESETTING IC SERIES

M51955A,B/M51956A,B
Voltage Detecting, System Resetting IC Series
REJ03D0777-0200
Rev.2.00
Aug 20, 2007
Description
M51955A,B/M51956A,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 a retardation time (200 µs Typ).
They fined extensive applications, including battery checking circuit, level detecting circuit and waveform shaping
circuit.
Features
• Few external parts
• Low threshold operating voltage (Supply voltage to keep low-state at low supply voltage):
0.6 V (Typ) at R_L = 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
Recommended Operating Condition
• Supply voltage range: 2 V to 17 V
Pin Arrangement
M51955AL/BL
M51956AL/BL
M51955AFP/BFP
M51956BFP
M51956AFP
5 Output
NC 1
8 NC
NC 1
8 NC
4 NC
Input 2
7 Power-supply
3 GND
2 Input
1 Power-supply
NC 3
GND 4
6 Output
5 NC
(Top view)
Outline: 5P5T
(Top view)
NC: No Connection
Outline: PRSP0008DE-C (recommend)
PRSP0008DA-A (8P2S-A) (not recommend for new design)
Input 2
7 Power-supply
NC 3
6 Output
GND 4
5 NC
(Top view)
NC: No Connection
Outline: PRSP0008DA-A (8P2S-A)
REJ03D0777-0200 Rev.2.00 Aug 20, 2007
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