06864710 is referenced by 96 patents and cites 31 patents.

A programmable logic device comprising one or more horizontal routing channels, one or more vertical routing channels, and a logic element. Each logic element may be configured to connect between one of the horizontal routing channels and one of the vertical routing channels. The logic element may comprise a logic block cluster and a memory block.

Title
Programmable logic device
Application Number
9/475879
Publication Number
6864710 (B1)
Application Date
December 30, 1999
Publication Date
March 8, 2005
Inventor
David L Johnson
Pleasanton
CA, US
Timothy M Lacey
Bedford
NH, US
Agent
Christopher P Maiorana PC
Assignee
Cypress Semiconductor
CA, US
IPC
H03K 019/177
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