•
Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
•
The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
System Reset with Delay Time Circuit IC-PST596~598
System Reset with Delay Time Circuit
Monolithic IC IC-PST596~598 Series
Outline
Package
SOT-25A (IC-PST59 N) (with manual reset pin)
*
The box represents a rank of detection voltage.
Applications
1. Reset circuits for microcomputers, CPUs and MPUs
2. Reset circuits for logic circuits
3. Battery voltage check circuits
4. Back-up power supply switching circuits
5. Level detection circuits
6. Mechanical reset circuits
This IC functions in a variety of CPU systems and other logic systems, to detect supply voltage and reset the system
accurately when the power is turned on or interrupted. It incorporates a fixed-delay time generation circuit. In
particular, this IC is a system reset IC which realizes ultra-small size and low current consumption.
Features
1. Fixed delay time setting by counter timer
2. Low operating limit voltage 0.65V typ.
3. Hysteresis voltage provided for detection voltage 50mV typ.
4. Low current consumption I
CCH
$ɤ([`W
TVKLSZHYLH]HPSHISLMVYKPɈLYLU[KLSH`[PTLZ 0*7:; TZ
IC-PST597 100ms
IC-PST598 200ms
6. Each model has 10 detection voltage ranks. 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.
July 21, 2000
•
Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
•
The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
System Reset with Delay Time Circuit IC-PST596~598
Equivalent Circuit Diagram
VCC
GND
SUB
2
1
4
3
5
VOUT
M/R
OSC
T
Q
R
Delay
54
321
SOT
-
25
(
TOP VIEW
)
1
M/R
2
SUB
3
GND
4
V
OUT
5
V
CC
Item Symbol Ratings Units
Storage temperature
T
STG
-
40~+125 °C
Operating temperature
T
OPR
−20~+75 °C
Power supply voltage
V
CC
max. −0.3~+12 V
Manual reset input voltage
V
RES
max. −0.3~+12 V
Allowable loss
Pd 150 mW
Pin Assignment
Pin No. Pin name Function
1
M/R Manual reset pin
1
2
SUB SUB pin
2
3
GND GND pin
4
V
OUT
Reset signal output pin
5
V
CC
Power supply pin/Voltage detection pin
!5V[L[OH[[OLVZJPSSVZJVWLTH`TPZVWLYH[LPM[OL49WPUMHSSZILSV^ò=
2 : Connect to GND.
Pin Description
Absolute Maximum Ratings
(Except where noted otherwise Ta=25°C)