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GD25B257D Datasheet(Arkusz danych) 60 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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 60 page
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3.3V Uniform Sector
Dual and Quad Serial Flash
GD25B257D
60
Figure 65. Release Power-Down/Read Device ID Sequence Diagram
8.29.
Read Manufacture ID/ Device ID (REMS) (90H)
The Read Manufacturer/Device ID 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.
The command is initiated by driving the CS# pin low and shifting the command code
“90H” 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 66. Read Manufacture ID/ Device ID Sequence Diagram
Command
0
1
2
3
4
5
6
7
ABH
CS#
SCLK
SI
8
9
29 30 31
MSB
2
1
0
3 Dummy Bytes
23 22
32 33 34 35 36 37 38
7
6
5
4
3
2
1
0
SO
MSB
t RES2
Stand-by Mode
Deep Power-down Mode
High-Z
Device ID
Command
0
1
2
3
4
5
6
7
90H
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
32
42 43 44 45
41
46 47
40
7
Device ID
CS#
SCLK
SI
SO
MSB
Manufacturer ID
6
5
4
3
2
1
0
7




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