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GD25B127DPFS 数据表(PDF) 9 Page - GigaDevice Semiconductor (Beijing) Inc.

部件名 GD25B127DPFS
功能描述  3.3V Uniform Sector Dual and Quad Serial Flash
PDF  65 Pages
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制造商  GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]
网页  http://www.gigadevice.com/
标志 GIGADEVICE - GigaDevice Semiconductor (Beijing) Inc.

GD25B127DPFS 数据表(HTML) 9 Page - GigaDevice Semiconductor (Beijing) Inc.

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3.3V Uniform Sector
Dual and Quad Serial Flash
GD25B127D
9
5. DATA PROTECTION
The GD25B127D provide the following data protection methods:
◆
Write Enable (WREN) command: The WREN command is set the Write Enable Latch bit (WEL). The WEL bit will
return to reset by the following situation:
-Power-Up
-Write Disable (WRDI)
-Write Status Register (WRSR)
-Page Program (PP)
-Sector Erase (SE) / Block Erase (BE) / Chip Erase (CE)
-Software reset (66H+99H)
◆
Software Protection Mode:
-The Block Protect (BP4, BP3, BP2, BP1, and BP0) bits define the section of the memory array that can be read
but not change.
◆
Deep Power-Down Mode: In Deep Power-Down Mode, all commands are ignored except the Release from Deep
Power-Down Mode command and reset command (66H+99H).
Table 5.1. GD25B127D Protected area size (CMP=0)
Status Register Content
Memory Content
BP4
BP3
BP2
BP1
BP0
Blocks
Addresses
Density
Portion
X
X
0
0
0
NONE
NONE
NONE
NONE
0
0
0
0
1
252 to 255
FC0000H-FFFFFFH
256KB
Upper 1/64
0
0
0
1
0
248 to 255
F80000H-FFFFFFH
512KB
Upper 1/32
0
0
0
1
1
240 to 255
F00000H-FFFFFFH
1MB
Upper 1/16
0
0
1
0
0
224 to 255
E00000H-FFFFFFH
2MB
Upper 1/8
0
0
1
0
1
192 to 255
C00000H-FFFFFFH
4MB
Upper 1/4
0
0
1
1
0
128 to 255
800000H-FFFFFFH
8MB
Upper 1/2
0
1
0
0
1
0 to 3
000000H-03FFFFH
256KB
Lower 1/64
0
1
0
1
0
0 to 7
000000H-07FFFFH
512KB
Lower 1/32
0
1
0
1
1
0 to 15
000000H-0FFFFFH
1MB
Lower 1/16
0
1
1
0
0
0 to 31
000000H-1FFFFFH
2MB
Lower 1/8
0
1
1
0
1
0 to 63
000000H-3FFFFFH
4MB
Lower 1/4
0
1
1
1
0
0 to 127
000000H-7FFFFFH
8MB
Lower 1/2
X
X
1
1
1
0 to 255
000000H-FFFFFFH
16MB
ALL
1
0
0
0
1
255
FFF000H-FFFFFFH
4KB
Top Block
1
0
0
1
0
255
FFE000H-FFFFFFH
8KB
Top Block
1
0
0
1
1
255
FFC000H-FFFFFFH
16KB
Top Block
1
0
1
0
X
255
FF8000H-FFFFFFH
32KB
Top Block
1
0
1
1
0
255
FF8000H-FFFFFFH
32KB
Top Block
1
1
0
0
1
0
000000H-000FFFH
4KB
Bottom Block
1
1
0
1
0
0
000000H-001FFFH
8KB
Bottom Block
1
1
0
1
1
0
000000H-003FFFH
16KB
Bottom Block
1
1
1
0
X
0
000000H-007FFFH
32KB
Bottom Block



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