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GD25WD20C データシート(PDF) 18 Page - GigaDevice Semiconductor (Beijing) Inc.

部品番号 GD25WD20C
部品情報  Uniform Sector Standard and Dual Serial Flash
PDF  49 Pages
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メーカー  GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]
ホームページ  http://www.gigadevice.com/
Logo GIGADEVICE - GigaDevice Semiconductor (Beijing) Inc.

GD25WD20C データシート(HTML) 18 Page - GigaDevice Semiconductor (Beijing) Inc.

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Uniform Sector
Standard and Dual Serial Flash
GD25WD40C/20C
18
Figure6. Read Data Bytes at Higher Speed Sequence Diagram
7.7. Dual Output Fast Read (3BH)
The Dual Output Fast Read command is followed by 3-byte address (A23-A0) and a dummy byte, and each bit being
latched in on the rising edge of SCLK, then the memory contents are shifted out 2-bit per clock cycle from SI and SO.
The command sequence is shown in followed Figure7. The first byte addressed can be at any location. The address is
automatically incremented to the next higher address after each byte of data is shifted out.
Figure7. Dual Output Fast Read Sequence Diagram
7.8. Page Program (PP) (02H)
The Page Program (PP) command is for programming the memory. A Write Enable (WREN) command must
previously have been executed to set the Write Enable Latch (WEL) bit before sending the Page Program command.
Command
0
1
2
3
4
5
6
7
0BH
CS#
SCLK
SI
SO
High-Z
8
9 10
28 29 30 31
3
2
1
0
23 22 21
24-bit address
MSB
34 35 36 37
33
6
5
4
3
2
1
0
38 39
Data Out1
32
42 43 44 45
41
46 47
40
7
6
5
4
3
2
1
0
7
6
5
7
Data Out2
CS#
SCLK
SI
SO
MSB
Dummy Byte
Command
0
1
2
3
4
5
6
7
3BH
CS#
SCLK
SI
SO
High-Z
8
9 10
28 29 30 31
3
2
1
0
23 22 21
24-bit address
MSB
34 35 36 37
33
5
3
1
7
5
3
1
38 39
Data Out1
32
42 43 44 45
41
46 47
40
7
Data Out2
CS#
SCLK
SI
SO
MSB
Dummy Clocks
4
2
0
6
4
2
0
6
6
7



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