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M51981ML Datasheet

Voltage Detecting / System Resetting-IC

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M51981ML/SL
Voltage Detecting, System Resetting IC Series
REJ03D0779-0400
Rev.4.00
Sep 18, 2007
Description
M51981ML/SL are semiconductor integrated circuits designed for detecting supply voltage and resetting all types of
logic circuits such as CPUs.
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 RL = 22 k
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
M51981ML
M51981SL
3 Output
2 GND
1 Supply voltage
(Top view)
Package: PLZZ0004CB-A (SOT-89)
1. Supply voltage
2. GND
3. Output
123
(Top view)
Package: PRSS0003DF-A (TO-92L)
REJ03D0779-0400 Rev.4.00 Sep 18, 2007
Page 1 of 4


Renesas Electronics Components Datasheet

M51981ML Datasheet

Voltage Detecting / System Resetting-IC

No Preview Available !

M51981ML/SL
Block Diagram
Supply
voltage
1
Operating Waveform
+
1.25V
2
GND
4.40V
3 Output
H
L
REJ03D0779-0400 Rev.4.00 Sep 18, 2007
Page 2 of 4



Part Number M51981ML
Description Voltage Detecting / System Resetting-IC
Maker Renesas
Total Page 3 Pages
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