Patent Number: 6,295,230

Title: Nonvolatile configuration cells and cell arrays

Abstract: A memory cell (400) used to store data in an integrated circuit. The memorycell (400) is static, nonvolatile, and programmable. The layout of thememory cell is compact. A logic high output from the memory cell (400) isabout VDD and a logic low output is about VSS. The memory cell (400) ofthe present invention includes a programmable memory element (515). In oneembodiment, the programmable memory element (515) is coupled betweensupply voltage (510) and an output node (405). A pull-down device (525) iscoupled between another supply voltage (505) and the output node (405).The memory cell (400) may be used to store the configuration informationfor a programmable logic device (121).

Inventors: Madurawe; Raminda U. (Sunnyvale, CA), Sansbury; James D. (Portola Valley, CA)


International Classification:

Expiration Date: 09/25/2013