Download the CAT1023 datasheet PDF.
This datasheet also includes the CAT1021 variant, as both parts are published together in a single manufacturer document.
Note: The manufacturer provides a single datasheet file (CAT1021_CatalystSemiconductor.pdf) that lists specifications for multiple related part numbers.
CAT1021, CAT1022, CAT1023 Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog.
Key Features
Precision Power Supply Voltage Monitor.
5V, 3.3V and 3V systems.
Five threshold voltage options Watchdog Timer Active High or Low Reset.
Valid reset guaranteed at VCC = 1V 400kHz I2C Bus 2.7V to 5.5V Operation Low power CMOS technology 16-Byte Page Write Buffer Built-in inadvertent write protection.
WP pin (CAT1021) All supervisors have a 1.6 second watchdog timer circuit that resets a system to a known state if software or a Manual Reset Input hardware glitch.
CAT1023 Datasheet
