Description
The CAT1021, CAT1022 and CAT1023 are complete memory and supervisory solutions for microcontrollerbased systems.
A 2k-bit serial EEPROM memory and a system power supervisor with brown-out protection are integrated together in low power CMOS technology.
Memory interface is via a 400kHz I2C bus.
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.
CAT1022 Datasheet
