MITSUMI

System Reset PST611

System Reset

Monolithic IC PST611

Outline

This IC functions in a variety of CPU systems and other logic systems, to constantly monitor power supply

voltage, and to reset the system accurately when power is turned on or interrupted.

System reset ICs have been represented by the PST series in the past, but this IC is able to set no-response

time through an external capacitor, and controls reset output relative to temporary power supply voltage drop

caused by motor load or the like in systems using batteries.

Also, the detection voltage for this IC is set low so that it can respond to systems that operate on low voltage.

Features

1. Low current consumption

2. Low operating limit voltage

0.75V max.

3. High reset output

4. No-response time can be controlled

5. 8 types of detection voltages provided

PST611

R : 1.6V typ.

V : 1.2V typ.

S : 1.5V typ.

W : 1.1V typ.

T : 1.4V typ.

X : 1.0V typ.

U : 1.3V typ.

Y : 0.9V typ.

Package

MMP-4A (PST611

M)

Applications

1. Reset circuits in microcomputers, CPUs and MPUs

2. Set voltage drop detection

3. Battery voltage check circuits.

4. Voltage detection circuits in general

Item

Symbol

Rating

Units

Storage temperature

-40~+125

Operating temperature

-10~+70

Power supply voltage

-0.3~+5

V

Allowable loss

Pd

200

mW