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
ORDERING INFORMATION
• 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.
IL1232N Plastic
IL1232D
SOIC
TA = -40° to 85° C for all packages.
The chip contains reference voltage source, analog comparator,
Watchdog timer, circuit for monitoring power supply deviation accuracy.
.
PBRST 01
08 Vcc
07 ST
Functions:
TD 02
TOL 03
GND 04
06 RST
05 RST
• Reset signal generation after power failure/ error
• Reset signal generation from external “RESET” pushbutton
• Reset signal generation from watchdog timer
Fig 1 – PIN ASSIGNMENT
Table 1 – Absolute maximum ratings
Typical
Symbol
VСС
Parameter
Supply voltage
Units
Max
Min
-
7.0
V
VIH
VIL
ТA
Input voltage, high level
Input voltage, low level
Operating temperature range
-
7.0
-
V
V
-1.0
-40
+85
°С
Tstg
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
IKSEMICON [ IK SEMICON CO., LTD ]
