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Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Atmels dataflash uses SPI which can be as low as 3 lines - its not a parallel bus though. Most parralel flash has an 8 bit bus you need at least 11 lines (8 data/address lines and 3 control lines). You could work out a multiplexing scheme but it probably wouldn't be that much faster than just using SPI.
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