DESCRIPTION

The CAT25CXXX is a single chip solution to three popular functions of EEPROM Memory, precision reset controller and watchdog timer. The EEPROM Memory is a 2K/4K/8K/16K/32K-Bit SPI Serial CMOS E2PROM internally organized as 256x8/512x8/1024x8/2048x8/ 4096x8 bits. Catalyst’s advanced CMOS Technology substantially reduces device power requirements. The 2K/4K devices feature a 16-byte page write buffer.

FEATURES

■ 10 MHz SPI Compatible

■ 1.8 to 6.0 Volt Operation

■ Hardware and Software Protection

■ Zero Standby Current

■ Low Power CMOS Technology

■ SPI Modes (0,0 &1,1)

■ Commercial, Industrial and Automotive Temperature Ranges

■ Active High or Low Reset Outputs

– Precision Power Supply Voltage Monitoring

– 5V, 3.3V, 3V and 1.8V Options

■ Watchdog Timer on CS

■ 1,000,000 Program/Erase Cycles

■ 100 Year Data Retention

■ Self-Timed Write Cycle

■ 8-Pin DIP/SOIC, 16-Pin SOIC and 14-Pin TSSOP

■ Page Write Buffer

■ Block Write Protection

– Protect 1/4, 1/2 or all of E2PROM Array

■ Programmable Watchdog Timer

■ Built-in inadvertent Write Protection – VCC Lock Out