M51957BL Renesas Electronics America, M51957BL Datasheet - Page 3

• Manufacturer Part Number: M51957BL
• Description: IC VOLTAGE DETECTOR 5-SIP
• Manufacturer: Renesas Electronics America
• Type: Simple Reset/Power-On Resetr

Specifications of M51957BL

• Number Of Voltages Monitored: 1
• Output: Open Drain or Open Collector
• Reset: Active Low
• Reset Timeout: 1.6 ms Minimum
• Voltage - Threshold: 1.25V
• Operating Temperature: -30°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 5-SIP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

M51957A,B/M51958A,B
Voltage Detecting, System Resetting IC Series
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):
• 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,
Recommended Operating Condition
• Supply voltage range: 2 V to 17 V
Pin Arrangement
REJ03D0778-0300 Rev.3.00 Sep 18, 2007
Page 1 of 13
0.6 V (Typ) at R
switching circuit back-up voltage, level detecting circuit, waveform shaping circuit, delay waveform generating
circuit, DC/DC converter, over voltage protection circuit
M51957AL/BL
M51958AL/BL
Outline: 5P5T
(Top view)
5
4
3
2
1
L
= 22 kΩ
Output
Delay capacitor
GND
Input
Power-supply
Input
GND
NC: No Connection
NC
NC
Outline: PRSP0008DE-C (recommend)
1
2
3
4
PRSP0008DA-A (8P2S-A) (not recommend for new design)
M51957AFP/BFP
M51958AFP/BFP
(Top view)
8
7
6
5
NC
Power-supply
Output
Delay capacitor
REJ03D0778-0300
Sep 18, 2007
Rev.3.00