S25FL004K Meet Spansion Inc., S25FL004K Datasheet - Page 30

• Manufacturer Part Number: S25FL004K
• Description: 4-mbit / 8-mbit / 16-mbit Cmos 3.0 Volt Flash Memory With 104-mhz Spi Serial Peripheral Interface Multi I/o Bus
• Manufacturer: Meet Spansion Inc.

7.7
30
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
eight “dummy” clocks after the 24-bit address as shown in
internal circuits additional time for setting up the initial address. During the dummy clocks the data value on
the SO pin is a “don’t care”.
CLK
CS#
CLK
CS#
SO
SI
SO
SI
= MSB
Mode 3
Mode 0
7
32
6
0
33 34 35
1
5
Dummy Byte
Instruction (0Bh)
2
4
R
.
(See AC Electrical Characteristics on page
3
S25FL004K / S25FL008K / S25FL016K
3
36 37
Figure 7.7 Fast Read Instruction Sequence Diagram
2
4
1
5
38 39 40 41
0
6
7
7
23
D a t a
6
8
22 21
9
42
5
Data Out 1
24-Bit Address
10
4
43 44
S h e e t
3
3
28 29
Figure
2
45 46 47
2
1
1
7.7. The dummy clocks allow the devices
30 31
0
0
64.) This is accomplished by adding
7
S25FL004K-016K_00_02 July 14, 2011
6
5
Data Out 2
4
3
2
1
0
7