w25q64dw Winbond Electronics Corp America, w25q64dw Datasheet - Page 28

• Manufacturer Part Number: w25q64dw
• Description: 1.8v 64m-bit Serial Flash Memory With Dual/quad Spi & Qpi
• Manufacturer: Winbond Electronics Corp America

10.2.12 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 F
“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”.
(IO
(IO
(IO
(IO
CLK
CLK
/CS
/CS
DO
DO
DI
DI
0
1
0
1
)
)
)
)
Mode 3
Mode 0
0
31
*
= MSB
32
33
High Impedance
0
Dummy Clocks
34
1
35
Instruction (0Bh)
R
2
(see AC Electrical Characteristics). This is accomplished by adding eight
36
3
37
4
High Impedance
Figure 11a. Fast Read Instruction (SPI Mode)
38
5
39
6
*
7
40
7
6
23
41
*
8
5
22
42
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9
Data Out 1
4
21
43
10
24-Bit Address
3
44
2
45
3
28
1
46
2
29
0
47
1
30
*
7
48
0
31
6
49
5
50
Data Out 2
4
51
W25Q64DW
3
52
2
53
1
54
0
55
7