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U 4 t POWER SUPPLY CONTROL e e WITH BUILT-IN WATCHDOG TIMER h S a at D is designed to monitor power supply within the...
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U 4 t POWER SUPPLY CONTROL e e WITH BUILT-IN WATCHDOG TIMER h S a at D is designed to monitor power supply within the system of IN1232 . reset signal generation for w microprocessors. It is used in monitor systems for controlling w various 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.
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TECHNICAL DATA
IN1232
The chip contains reference
voltage source, analog comparator, Watchdog timer, circuit for monitoring power supply deviation accuracy. . Functions:
Reset signal generation after power failure/ error Reset signal generation from external “RESET” pushbutton Reset signal generation from watchdog timer
Table 1 – Absolute maximum ratings Symbol VСС VIH VIL ТA Tstg Parameter Supply
voltage Input
voltage, high level Input
voltage, low level Operating temperature range Storage temperature Typical Min -1.0 -40 -60 Max 7.0 7.0 +85 +125 Units V V V
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ORDERING INFORMATION IL1232N Plastic IL1232D SOIC TA = -40° to 85° C for all packages.
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PBRST 01 TD TOL 02 03
08 Vcc 07 06 05 ST RST RST
GND 04
Fig 1 – PIN ASSIGNMENT
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IN1232
Table 2 – Recommended operating conditions
Symbol VСС VIH VIL ТA Parameter Supply
voltage Input
voltage, high level ...