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GD25B64C Datasheet(Scheda tecnica) 16 Page - GigaDevice Semiconductor (Beijing) Inc.

Numero della parte GD25B64C
Dettagli  3.3V Uniform Sector Dual and Quad Serial Flash
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Produttore  GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]
Homepage  http://www.gigadevice.com/
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3.3V Uniform Sector
Dual and Quad Serial Flash
GD25B64C
16
7.1.
Write Enable (WREN) (06H)
The Write Enable (WREN) command is for setting the Write Enable Latch (WEL) bit. The Write Enable Latch (WEL)
bit must be set prior to every Page Program (PP), Sector Erase (SE), Block Erase (BE), Chip Erase (CE), Write Status
Register (WRSR) and Erase/Program Security Registers command. The Write Enable (WREN) command sequence: CS#
goes low  sending the Write Enable command  CS# goes high.
Figure 1. Write Enable Sequence Diagram
7.2. Write Disable (WRDI) (04H)
The Write Disable command is for resetting the Write Enable Latch (WEL) bit. The Write Disable command sequence:
CS# goes low Sending the Write Disable command CS# goes high. The WEL bit is reset by following condition:
Power-up and upon completion of the Write Status Register, Page Program, Sector Erase, Block Erase, Chip Erase,
Erase/Program Security Registers and Reset commands.
Figure 2. Write Disable Sequence Diagram
Command
0
1
2
3
4
5
6
7
06H
CS#
SCLK
SI
SO
High-Z
Command
0
1
2
3
4
5
6
7
04H
CS#
SCLK
SI
SO
High-Z




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