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DESCRIPTION

The CAT1026 and CAT1027 are complete memory and supervisory solutions for microcontroller-based 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 VCC Power Supply Voltage Monitor

— 5V, 3.3V and 3V systems

— Five threshold voltage options

? Additional voltage monitoring

— Externally adjustable down to 1.25V

? Watchdog timer (CAT1027 only)

? 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

? 1,000,000 Program/Erase cycles

? Manual Reset capability

? 100 year data retention

? Industrial and extended temperature ranges

? 8-pin DIP, SOIC, TSSOP, MSOP or TDFN

(3 x 3mm foot-print) packages

— TDFN max height is 0.8mm