06384628 is referenced by 36 patents.

A programmable logic device comprising a core circuit, a first circuit, a second circuit, and a third circuit. The core circuit may be configured to (i) operate at a first supply voltage, (ii) receive one or more internal input signals, and (iii) generate one or more internal output signals. The first circuit may be configured to generate said first supply voltage in response to a second supply voltage. The second circuit may be configured to (i) operate at a third supply voltage and (ii) generate said one or more internal input signals in response to one or more external input signals. The third circuit may be configured to (i) operate at said third supply voltage and (ii) generate one or more external output signals in response to said one or more internal output signals.

Title
Multiple voltage supply programmable logic device
Application Number
9/540106
Publication Number
6384628 (B1)
Application Date
March 31, 2000
Publication Date
May 7, 2002
Inventor
David L Johnson
Pleasanton
CA, US
Jeffrey Mark Marshall
Dallas
TX, US
Timothy M Lacey
Bedford
NH, US
Agent
Christopher P Maiorana P C
US
Assignee
Cypress Semiconductor
CA, US
IPC
H01L 25/00
View Original Source