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GD25B32CSIG Datasheet(Hoja de datos) 28 Page - GigaDevice Semiconductor (Beijing) Inc.

No. de Pieza. GD25B32CSIG
Descripción  3.3V Uniform Sector Dual and Quad Serial Flash
Descarga  56 Pages
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Fabricante  GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]
Página de inicio  http://www.gigadevice.com/
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 28 page
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3.3V Uniform Sector
Dual and Quad Serial Flash
GD25B32C
28
A Fast Page Program (FPP) command is not executed when it is applied to a page protected by the Block Protect
(BP4, BP3, BP2, BP1, BP0).
Figure 19. Fast Page Program Sequence Diagram
7.17.
Sector Erase (SE) (20H)
The Sector Erase (SE) command is used to erase all the 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 Figure20. 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.
Figure 20. Sector Erase Sequence Diagram
7.18.
32KB Block Erase (BE) (52H)
The 32KB Block Erase (BE) command is used to erase all the data of the chosen block. A Write Enable (WREN)
command must previously have been executed to set the Write Enable Latch (WEL) bit. The 32KB Block Erase (BE)
command is entered by driving CS# low, followed by the command code, and three address bytes on SI. Any address
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
Command
0
1
2
3
4
5
6
7
F2H
CS#
SCLK
SI
8
9 10
28 29 30 31
3
2
1
0
23 22 21
24-bit address
42 43 44 45
41
46 47
40
50 51 52 53
49
54 55
48
6
5
4
3
2
1
0
7
CS#
SCLK
SI
MSB
Data Byte 2
32 33 34 35
7
6
5
4
3
2
1
0
MSB
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
Data Byte 1
Data Byte 3
Data Byte 256
MSB
MSB
MSB
36 37 38 39




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