Inventors:
Napoleon W. Lee - Milpitas CA
Derek R. Curd - San Jose CA
Sholeh Diba - Los Gatos CA
Prasad Sastry - Milpitas CA
Mihai G. Statovici - San Jose CA
Kameswara K. Rao - San Jose CA
Assignee:
Xilinx, Inc. - San Jose CA
International Classification:
G11C 700
Abstract:
An integrated programmable logic device (PLD) includes flash EPROM storage transistors. The PLD includes a multiplexor that selectively provides program, erase, or verify voltages to the storage transistors. The program, erase, and verify voltages may be supplied using external power supplies or may be generated internally by on-chip charge-pump generators. A configurable memory on the PLD is used to adjust the output voltages from each of the on-chip charge-pump generators.