1 Megabit CMOS Boot Block Flash Memory

The CAT28F001 is a high speed 128K X 8 bit electrically erasable and reprogrammable Flash memory ideally suited for applications requiring in-system or after sale code updates. The CAT28F001 has a blocked architecture with one 8 KB Boot Block, two 4 KB Parameter Blocks and one 112 KB Main Block. The Boot Block section CAN be at the top or bottom of the memory map and includes a reprogram- ming write lock out feature to guarantee data integrity. It is designed to contain secure code which will bring up the system minimally and download code to other loca- tions of CAT28F001. By Catalyst Semiconductor