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GD25LB32D Scheda tecnica(PDF) 33 Page - GigaDevice Semiconductor (Beijing) Inc.

Il numero della parte GD25LB32D
Spiegazioni elettronici  1.8V Uniform Sector Dual and Quad Serial Flash
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Produttore elettronici  GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]
Homepage  http://www.gigadevice.com/
Logo GIGADEVICE - GigaDevice Semiconductor (Beijing) Inc.

GD25LB32D Scheda tecnica(HTML) 33 Page - GigaDevice Semiconductor (Beijing) Inc.

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1.8V Uniform Sector
Dual and Quad Serial Flash
GD25LB32D
33
7.17.
Sector Erase (SE) (20H)
The Sector Erase (SE) command is erased the all data of the chosen sector. A Write Enable (WREN) command must
previously have been executed to set the Write Enable Latch (WEL) bit. The Sector Erase (SE) command is entered by
driving CS# low, followed by the command code, and 3-address byte on SI. Any address inside the sector is a valid
address for the Sector Erase (SE) command. CS# must be driven low for the entire duration of the sequence.
The Sector Erase command sequence: CS# goes low  sending Sector Erase command  3-byte address on SI 
CS# goes high. The command sequence is shown in Figure17. CS# must be driven high after the eighth bit of the last
address byte has been latched in; otherwise the Sector Erase (SE) command is not executed. As soon as CS# is driven
high, the self-timed Sector Erase cycle (whose duration is tSE) is initiated. While the Sector Erase cycle is in progress, the
Status Register may be read to check the value of the Write in Progress (WIP) bit. The Write in Progress (WIP) bit is 1
during the self-timed Sector Erase cycle, and is 0 when it is completed. At some unspecified time before the cycle is
completed, the Write Enable Latch (WEL) bit is reset. A Sector Erase (SE) command applied to a sector which is protected
by the Block Protect (BP4, BP3, BP2, BP1, and BP0) bit (see Table1&1a) is not executed.
Figure17. Sector Erase Sequence Diagram
Command
0
1
2
3
4
5
6
7
20H
CS#
SCLK
SI
8
9
29 30 31
MSB
2
1
0
24 Bits Address
23 22
Figure17a. Sector Erase Sequence Diagram (QPI)
CS#
SCLK
IO0
IO1
IO2
IO3
0
1
2
3
4
5
Command
20H
20
12
16
8
A23-16 A12-8
6
7
0
21
13
17
9
1
23
15
19
11
3
22
14
18
10
2
4
5
6
7
A7-0


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