CAT93C5632

Advanced Information CAT93CXXXX (1K-16K) Supervisory Circuits with Microwire Serial CMOS E2PROM, Precision Reset Controller and Watchdog Timer FEATURES s Watchdog Timer s Programmable Reset Threshold s Built-in Inadvertent Write Protection s Active High or Low Reset Outputs —Precision Power Supply Voltage Monitoring —5V, 3.3V and 3V options s Hardware and Software Write Protection s Power-Up Inadvertant Write Protection s 1,000,000 Program/Erase Cycles s 100 Year Data Retention s Commercial, Industrial, and Automotive —VCC Lock Out s High Speed Operation: 3MHz s Low Power CMOS Technology s x 16 or x 8 Selectable Serial Memory s Self-Timed Write Cycle with Auto-Clear s Sequential Read s Fast Nonvolatile Write Cycle: 3ms Max Temperature Ranges s 2.7-6.0 Volt Operation s 16 Byte Page Mode 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 16bits or by 8-bits. Each register can be written (or read) by using the DI (or DO pin). The reset function of the 93CXXXX protects the system during brown out and power up/down conditions. During system failure the watchdog timer feature protects the microcontroller with a reset signal. Catalyst's advanced CMOS technology substantially reduces device power requirements. The 93CXXXX is available in 8-pin DIP, 8pin TSSOP or 8-pin SOIC packages. It is designed to endure 1,000,000 p...