KK1232

www.DataSheet4U.com TECHNICAL DATA POWER SUPPLY CONTROL WITH BUILT-IN WATCHDOG TIMER KK1232 is designed to monitor power supply within the system of reset signal generation for microprocessors. It is used in monitor systems for controlling various processes and entities. Packaged in 8-pin SOP or DIP. KK1232 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 KK1232N Plastic KK1232D 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 06 05 ST RST RST Functions: Reset signal generation after power failure/ error Reset signal generation from external “RESET” pushbutton Reset signal generation from watchdog timer TD TOL 02 03 GND 04 Fig 1 – PIN ASSIGNMENT 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 °С °С 1 KK1232 www.DataSheet4U.com Table 2 – Recommended operating conditions Symbol VСС VIH VIL ТA Parameter Supply voltage Input voltage, high level Input voltage, low level Operating temperature range Typical Min 4.5 2.0 -0.3 -20 Max 5....