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GD25B257D Datasheet(Arkusz danych) 62 Page - GigaDevice Semiconductor (Beijing) Inc.

Numer części GD25B257D
Szczegółowy opis  3.3V Uniform Sector Dual and Quad Serial Flash
Pobierz  92 Pages
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Producent  GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]
Strona internetowa  http://www.gigadevice.com/
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 62 page
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3.3V Uniform Sector
Dual and Quad Serial Flash
GD25B257D
62
8.31.
Read Manufacture ID/ Device ID Quad I/O (94H)
The Read Manufacturer/Device ID Quad I/O command is an alternative to the Release from Power-Down / Device ID
command that provides both the JEDEC assigned Manufacturer ID and the specific Device ID by quad I/O.
The command is initiated by driving the CS# pin low and shifting the command code “94H” followed by a 24-bit address
(A23-A0) of 000000H. After which, the Manufacturer ID and the Device ID are shifted out on the falling edge of SCLK with
most significant bit (MSB) first as shown below. If the 24-bit address is initially set to 000001H, the Device ID will be read
first.
Figure 68. Read Manufacture ID/ Device ID Quad I/O Sequence Diagram
Command
0
1
2
3
4
5
6
7
94H
CS#
SCLK
8
9 10 11 12 13 14 15
4
0
4
0
4
0
4
0
16 17 18 19 20 21 22 23
4
0
4
0
5
1
5
1
5
1
5
1
5
1
5
1
A23-16 A15-8 A7-0
M7-0
6
2
6
2
6
2
6
2
6
2
6
2
7
3
7
3
7
3
7
3
7
3
7
3
Dummy
MFR ID DID
CS#
SCLK
24 25 26 27 28 29 30 31
4
0
4
0
5
1
5
1
6
2
6
2
7
3
7
3
MFR ID
(Repeat)
DID
(Repeat)
4
0
4
0
5
1
5
1
6
2
6
2
7
3
7
3
MFR ID
(Repeat)
DID
(Repeat)
IO0
IO1
IO2
IO3
IO0
IO1
IO2
IO3




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