Datasheet Summary
CAT1021, CAT1022, CAT1023
Supervisory Circuits with EEPROM Serial 2k-bit I2C Manual Reset and Watchdog Timer
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Description
The CAT1021, CAT1022 and CAT1023 are plete memory and supervisory solutions for microcontroller- based systems. A EEPROM
Serial 2k- bit I2C memory and a system power supervisor with brown- out protection are integrated together in low power CMOS technology. Memory interface is via a 400 kHz I2C bus.
SOIC- 8 CASE 751BD
TSSOP- 8 CASE 948S
The CAT1021 and CAT1023 provide a precision VCC sense circuit and two open drain outputs: one (RESET) drives high and the other
(RESET) drives low whenever VCC falls below the reset threshold voltage. The CAT1022...
