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 ICCH=450µA typ. ICCL=1µA typ.

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.

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.