System Reset PST573
MITSUMI
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
ICCH=450µA typ. ICCL=1µA typ.
0.65V typ.
3. Output current high for ON
-6mA typ.
4. Hysteresis voltage provided in detection voltage
5. 10 ranks of detection voltage
50mV typ.
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
)
contains detection voltage rank .
*
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
1
3
1
2
3
VCC
GND
VOUT
1
2
3
VCC
GND
VOUT
2
1
2
3
MMP-3A
-
TO 92A
MITSUMI [ MITSUMI ELECTRONICS, CORP. ]
