CAT1161, CAT1162 Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog Timer (16K) Description The CAT1161/2 is a complete memory and supervisory solution for microcontroller−based systems.
A serial EEPROM memory (16K) with hardware memory write protection, a system power supervisor with brown out protection and a watchdog timer are integrated together in low power CMOS technology.
Memory interface is via an I2C bus.
The 1.
6−second watchdog circuit returns a system to a known good state if a software or hardware glitch halts or “hangs” the system.
The CAT1161 watchdog monitors the SDA line, making an additional PC board trace unnecessary.
The lower cost ...

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