CAT93CXXXX

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


Pinout




Specifications

Temperature Under Bias....................55°C to +125°C
Storage Temperature........................ 65°C to +150°C
Voltage on Any Pin with
Respect to Ground(1) ..............2.0V to +VCC + 2.0V
VCC with Respect to Ground..................2.0V to +7.0V
Package Power Dissipation
Capability (Ta = 25°C)1.0W.................................1.0W
Lead Soldering Temperature (10 secs)...............300°C
Output Short Circuit Current(2) ..........................100mA



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).
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, 8-pin TSSOP or 8-pin SOIC packages. It is designed to endure 1,000,000 program/erase cycles and has a data retention of 100 years.