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DESCRIPTION

The CAT93CXXXX is a single chip solution to three popular functions of EEPROM memory, precision reset controller and watchdog timer. The serial EEPROM memory of the 93CXXXX can be configured either by 16- bits or by 8-bits. Each register can be written (or read) by using the DI (or DO pin).

FEATURES

■ Watchdog Timer

■ Programmable Reset Threshold

■ Built-in Inadvertent Write Protection

—VCC Lock Out

■ High Speed Operation: 3MHz

■ Low Power CMOS Technology

■ x 16 or x 8 Selectable Serial Memory

■ Self-Timed Write Cycle with Auto-Clear

■ Sequential Read

■ Fast Nonvolatile Write Cycle: 3ms Max

■ Active High or Low Reset Outputs

—Precision Power Supply Voltage Monitoring

—5V, 3.3V and 3V options

■ Hardware and Software Write Protection

■ Power-Up Inadvertant Write Protection

■ 1,000,000 Program/Erase Cycles

■ 100 Year Data Retention

■ Commercial, Industrial, and Automotive Temperature Ranges

■ 2.7-6.0 Volt Operation

■ 16 Byte Page Mode