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GD25LQ64CSJS Datasheet(PDF) 39 Page - GigaDevice Semiconductor (Beijing) Inc.

Part # GD25LQ64CSJS
Description  1.8V Uniform Sector Dual and Quad Serial Flash
PDF  77 Pages
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Manufacturer  GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]
Direct Link  http://www.gigadevice.com/
Logo GIGADEVICE - GigaDevice Semiconductor (Beijing) Inc.

GD25LQ64CSJS Datasheet(HTML) 39 Page - GigaDevice Semiconductor (Beijing) Inc.

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1.8V Uniform Sector
Dual and Quad Serial Flash
GD25LQ64C
39
Figure23a. Release Power-Down/Read Device ID Sequence Diagram (QPI)
CS#
SCLK
IO0
IO1
IO2
IO3
0
1
2
3
4
5
Command
ABH
6
7
8
0
1
3
4
5
7
2
6
IOs switch from
Input to Output
3 Dummy Bytes
Device
ID
tRES2
Deep Power-down mode
Stand-by mode
7.22 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 comma
nd 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 in Figure24. If the 24-bit address is initially set to 000001H, the Device
ID will be read first.
Figure24. Read Manufacture ID/ Device ID Sequence Diagram
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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