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.
2.
3.
4.
5.
Low current consumption
Low operating limit voltage
High reset output
No-response time can be controlled
8 types of detection voltages provided
I
CCH
=2.2µA
0.75V max.
I
CCL
=3.2µA
PST611
R : 1.6V typ.
S : 1.5V typ.
T : 1.4V typ.
U : 1.3V typ.
V : 1.2V typ.
W : 1.1V typ.
X : 1.0V typ.
Y : 0.9V typ.
Package
MMP-4A (PST611 M)
contains detection voltage rank.
*
Applications
1.
2.
3.
4.
Reset circuits in microcomputers, CPUs and MPUs
Set voltage drop detection
Battery voltage check circuits.
Voltage detection circuits in general
Absolute Maximum Ratings
Item
Storage temperature
Operating temperature
Power supply voltage
Allowable loss
(Ta=25
°
C)
Symbol
T
STG
T
OPR
V
CC
max.
Pd
Rating
-40~+125
-10~+70
-0.3~+5
200
Units
°
C
°
C
V
mW
MITSUMI [ MITSUMI ELECTRONICS, CORP. ]
