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25Q64FVAIF View Datasheet(PDF) - Winbond

Part Name25Q64FVAIF Winbond
Winbond Winbond
Description3V 64M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
25Q64FVAIF Datasheet PDF : 89 Pages
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W25Q64FV
6.2.12 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 eight
“dummy” clocks after the 24-bit address as shown in figure 11. The dummy clocks allow the devices
internal circuits additional time for setting up the initial address. During the dummy clocks the data value
on the DO pin is a “don’t care”.
/CS
CLK
DI
(IO0)
DO
(IO1)
/CS
CLK
DI
(IO0)
DO
(IO1)
Mode 3
Mode 0
0 1 2 3 4 5 6 7 8 9 10
28 29 30 31
Instruction (0Bh)
24-Bit Address
23 22 21
*
High Impedance
3210
* = MSB
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55
Dummy Clocks
0
High Impedance
Data Out 1
Data Out 2
76543210765432107
*
*
Figure 11a. Fast Read Instruction (SPI Mode)
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GENERAL DESCRIPTION
The W25Q64FV (64M-bit) Serial Flash memory provides a storage solution for systems with limited space, pins and power. The 25Q series offers flexibility and performance well beyond ordinary Serial Flash devices. They are ideal for code shadowing to RAM, executing code directly from Dual/Quad SPI (XIP) and storing voice, text and data. The device operates on a single 2.7V to 3.6V power supply with current consumption as low as 4mA active and 1µA for power-down. All devices are offered in space saving packages.

 

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