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S25FL256SDPNFAQ Datasheet(PDF) 104 Page - Cypress Semiconductor

No. de pieza S25FL256SDPNFAQ
Descripción Electrónicos  128 Mbit (16 Mbyte)/256 Mbit (32 Mbyte) 128 Mbit (16 Mbyte)/256 Mbit (32 Mbyte)
PDF  149 Pages
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Fabricante Electrónico  CYPRESS [Cypress Semiconductor]
Página de inicio  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

S25FL256SDPNFAQ Datasheet(HTML) 104 Page - Cypress Semiconductor

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Document Number: 001-98283 Rev. *M
Page 103 of 148
S25FL128S/S25FL256S
9.5.3
Quad Page Program (QPP 32h or 38h, or 4QPP 34h)
The Quad-input Page Program (QPP) command allows bytes to be programmed in the memory (changing bits from 1 to 0). The
Quad-input Page Program (QPP) command allows up to a page size (either 256 or 512 bytes) of data to be loaded into the Page
Buffer using four signals: IO0-IO3. QPP can improve performance for PROM Programmer and applications that have slower clock
speeds (< 12 MHz) by loading 4 bits of data per clock cycle. Systems with faster clock speeds do not realize as much benefit for the
QPP command since the inherent page program time becomes greater than the time it takes to clock-in the data. The maximum
frequency for the QPP command is 80 MHz.
To use Quad Page Program the Quad Enable Bit in the Configuration Register must be set (QUAD=1). A Write Enable command
must be executed before the device will accept the QPP command (Status
Register 1, WEL=1).
The instruction
32h (ExtAdd=0) is followed by a 3-byte address (A23-A0) or
32h (ExtAdd=1) is followed by a 4-byte address (A31-A0) or
38h (ExtAdd=0) is followed by a 3-byte address (A23-A0) or
38h (ExtAdd=1) is followed by a 4-byte address (A31-A0) or
34h is followed by a 4-byte address (A31-A0)
and at least one data byte, into the IO signals. Data must be programmed at previously erased (FFh) memory locations.
The programming page is aligned on the page size address boundary. It is possible to program from one bit up to a page size in
each Page programming operation. It is recommended that a multiple of 16 byte length and aligned Program Blocks be written. This
insures that Automatic ECC is not disabled.
All other functions of QPP are identical to Page Program. The QPP command sequence is shown in Figure 66.
Figure 66. Quad 512-Byte Page Program Command Sequence (3-Byte Address, 32h or 38h)
1
3
2
10
9
8
7
6
5
4
0
31
30
29
28
Instruction
24-Bit
Address
23
21
22
1
3
2
0
36
35
34
33
32
39
38
37
2
0
1
3
4
5
6
7
Byte 1
44
43
42
41
40
47
46
45
52
51
50
49
48
55
54
53
SCK
IO0
SCK
IO0
*
*
2
0
1
3
4
5
6
7
*
Byte 2
5
6
2
0
1
3
4
6
7
Byte 3
*
2
0
1
3
4
5
6
7
*
Byte 4
IO1
IO2
IO3
6
2
0
1
3
4
5
7
Byte 5
*
*
Byte 6
Byte 7
*
*
Byte 8
Byte 9
*
*
Byte 10 Byte 11
*
*
Byte 12
Byte 509
*
*
Byte 510Byte 511
*
*
Byte 512
IO1
IO2
IO3
CS#
CS#
6
2
0
1
3
4
5
7
6
2
0
1
3
4
5
7
6
2
0
1
3
4
5
7
6
2
0
1
3
4
5
7
6
2
0
1
3
4
5
7
6
2
0
1
3
4
5
7
6
2
0
1
3
4
5
7
6
2
0
1
3
4
5
7
6
2
0
1
3
4
5
7
6
2
0
1
3
4
5
7
6
2
0
1
3
4
5
7
*MSB



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