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FM25C640U Datasheet(PDF) 5 Page - Fairchild Semiconductor |
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FM25C640U Datasheet(HTML) 5 Page - Fairchild Semiconductor |
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5 / 11 page  5 www.fairchildsemi.com FM25C640U Rev. B FIGURE 1. Synchronous Data Timing Diagram tCSS tCLH tCLL tCSH tDF tPD tDIS tDIH tDH tCSI SCK SI SO /CS Valid Input Valid Output High Z Mode 3 Mode 3 Mode 0 Mode 0 SCK CS SO /HOLD Output (n+1) Output (n) Output (n) Output (n+2) tHDS tHZ tLZ tHDH tHDS tHDH tDIS High Z SI Input (n+1) Input (n) Input (n) Input (n+2) Don't Care Low state ( /CS = 0) Don't Care FIGURE 3. HOLD Timing FIGURE 2. SPI Protocol SCK SI SO /CS Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Don't Care High Z Mode 3 Mode 3 |
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Similar Description - FM25C640U |
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