IN1232_11 Datasheet, PDF (1/7 Pages) IK Semicon Co., Ltd – POWER SUPPLY CONTROL WITH BUILT-IN WATCHDOG TIMER

TECHNICAL DATA
POWER SUPPLY CONTROL
WITH BUILT-IN WATCHDOG TIMER
IN1232
IN1232 is designed to monitor power supply within the system of
reset signal generation for
microprocessors. It is used in monitor systems for controlling var-
ious processes and entities.
Packaged in 8-pin SOP or DIP.
Features:
• Rated supply voltage 5.0 V
• Accurate 5% or 10% microprocessor power supply monitoring
• Programming of watchdog timer overflow time
• Generation of reset signals at power on for correct microproces
sor start.
ORDERING INFORMATION
IL1232N Plastic
IL1232D SOIC
T_A = -40° to 85° C for all packages.
The chip contains reference voltage source, analog comparator,
Watchdog timer, circuit for monitoring power supply deviation accuracy.
.
Functions:
PBRST 01
TD 02
• Reset signal generation after power failure/ error
• Reset signal generation from external “RESET” pushbutton
• Reset signal generation from watchdog timer
TOL 03
GND 04
08 Vcc
07 ST
06 RST
05 RST
Fig 1 – PIN ASSIGNMENT
Table 1 – Absolute maximum ratings
Symbol
Parameter
Typical
Min
Max
Units
V_СС
Supply voltage
V_IH
Input voltage, high level
V_IL
Input voltage, low level
Т_A
Operating temperature range
-
7.0
V
-
7.0
V
-1.0
-
V
-40
+85
°С
T_stg
Storage temperature
-60
+125
°С
* Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device.
These are stress ratings only and functional operation of the device at these or any other conditions beyond those indi-
cated under “recommended operating conditions” is not implied.
Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
2011, February, Rev. 01