W25P10 Datasheet, PDF (17/35 Pages) Winbond – 1M-BIT, 2M-BIT AND 4M-BIT SERIAL FLASH MEMORY WITH 40MHZ SPI

W25P10, W25P20 AND W25P40
7.2.8 Fast Read (0Bh)
The Fast Read instruction is similar to the Read Data instruction except that it can operate at the
highest possible frequency of FR (see AC Electrical Characteristics). This is accomplished by adding a
“dummy” byte after the 24-bit address as shown in figure 9. The dummy byte allows the devices
internal circuits additional time for setting up the initial address. The dummy byte data value on the DI
pin is a “don’t care”.
Figure 9. Fast Read Instruction Sequence Diagram
Publication Release Date: November 28, 2005
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Revision M