MITSUMI

System Reset PST573

System Reset

Monolithic IC PST573

Outline

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

reset the system accurately when power is turned on or interrupted. This ultra-low current consumption high

reset type system reset IC was developed using high resistance process and low current circuit design

technology.

Features

1. Ultra-low current consumption

2. Low operating limit voltage

0.65V typ.

3. Output current high for ON

-6mA typ.

4. Hysteresis voltage provided in detection voltage

50mV typ.

5. 10 ranks of detection voltage

PST573

C : 4.5V typ.

H : 3.1V typ.

D : 4.2V typ.

I : 2.9V typ.

E : 3.9V typ.

J : 2.7V typ.

F : 3.6V typ.

K : 2.5V typ.

G : 3.3V typ.

L : 2.3V typ.

Package

MMP-3A (PST573

M)

TO-92A (PST573

)

Applications

1. Reset circuits in microcomputers, CPUs and MPUs.

2. Logic circuit reset circuits.

3. Battery voltage check circuits.

4. Back-up power supply switching circuits.

5. Level detection circuits.

Pin Assignment

12

3

TO-92A

1

2

GND

3

3

1

2

MMP-3A

1

2

GND

3