MITSUMI
System Reset PST596~598
System Reset
Monolithic IC PST596~598 Series
Outline
These ICs function 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, and has a built-in fixed delay time
generating circuit. This series has been represented in the past by PST591~595, and these new system reset
ICs offer ultra-small size and low current consumption.
Features
1. Fixed delay time setting by counter timer
2. Low operating limit voltage
3. Hysteresis voltage provided in detection voltage
4. Low current consumption
5. 3 delay time products available
0.65V typ.
50mV typ.
I
CCH
=15µA typ.
PST596 50mS
PST597 100mS
PST598 200mS
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.
6. Each product has 10 detection voltage ranks.
Package
SOT-25A (PST59
N) (with manual reset pin)
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.
6. Mechanical reset circuits
MITSUMI [ MITSUMI ELECTRONICS, CORP. ]
