CAT1021 Datasheet | Catalyst Semiconductor

CAT1021, CAT1022, CAT1023 Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer 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 halts or “hangs” the system. For the .. CAT1021 and CAT1022, the watchdog timer...