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GD25Q21B Datasheet(PDF) 8 Page - ELM Electronics

Part # GD25Q21B
Description  2M-bit Serial Flash
Download  49 Pages
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Manufacturer  ELM [ELM Electronics]
Direct Link  http://www.elmelectronics.com
Logo ELM - ELM Electronics

GD25Q21B Datasheet(HTML) 8 Page - ELM Electronics

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background image
8
Rev.1.1
49 -
http://www.elm-tech.com
GD25Q21BxIGx Uniform Sector Dual and Quad Serial Flash
Status Register Content
Memory Content
BP4 BP3 BP2 BP1 BP0
Blocks
Addresses
Density
Portion
0
×
×
0
0
NONE
NONE
NONE
NONE
0
0
×
0
1
3
030000H-03FFFFH
64KB
Upper 1/4
0
0
×
1
0
2 and 3
020000H-03FFFFH
128KB
Upper 1/2
0
1
×
0
1
0
000000H-00FFFFH
64KB
Lower 1/4
0
1
×
1
0
0 and 1
000000H-01FFFFH
128KB
Lower 1/2
0
×
×
1
1
0 to 3
000000H-03FFFFH
256KB
ALL
1
×
0
0
0
NONE
NONE
NONE
NONE
1
0
0
0
1
3
03F000H-03FFFFH
4KB
Upper 1/64
1
0
0
1
0
3
03E000H-03FFFFH
8KB
Upper 1/32
1
0
0
1
1
3
03C000H-03FFFFH
16KB
Upper 1/16
1
0
1
0
×
3
038000H-03FFFFH
32KB
Upper 1/8
1
0
1
1
0
3
038000H-03FFFFH
32KB
Upper 1/8
1
1
0
0
1
0
000000H-000FFFH
4KB
Lower 1/64
1
1
0
1
0
0
000000H-001FFFH
8KB
Lower 1/32
1
1
0
1
1
0
000000H-003FFFH
16KB
Lower 1/16
1
1
1
0
×
0
000000H-007FFFH
32KB
Lower 1/8
1
1
1
1
0
0
000000H-007FFFH
32KB
Lower 1/8
1
×
1
1
1
0 to 3
000000H-03FFFFH
256KB
ALL
Table1.0 GD25Q21B Protected area size (CMP=0)
Status Register Content
Memory Content
BP4 BP3 BP2 BP1 BP0
Blocks
Addresses
Density
Portion
0
×
×
0
0
0 to 3
000000H-03FFFFH
256KB
ALL
0
0
×
0
1
0 to 2
000000H-02FFFFH
192KB
Lower 3/4
0
0
×
1
0
0 and 1
000000H-01FFFFH
128KB
Lower 1/2
0
1
×
0
1
1 to 3
010000H-03FFFFH
192KB
Upper 3/4
0
1
×
1
0
2 and 3
020000H-03FFFFH
128KB
Upper 1/2
0
×
×
1
1
NONE
NONE
NONE
NONE
1
×
0
0
0
0 to 3
000000H-03FFFFH
256KB
ALL
1
0
0
0
1
0 to 3
000000H-03EFFFH
252KB
Lower 63/64
1
0
0
1
0
0 to 3
000000H-03DFFFH
248KB
Lower 31/32
1
0
0
1
1
0 to 3
000000H-03BFFFH
240KB
Lower 15/16
1
0
1
0
×
0 to 3
000000H-037FFFH
224KB
Lower 7/8
1
0
1
1
0
0 to 3
000000H-037FFFH
224KB
Lower 7/8
1
1
0
0
1
0 to 3
001000H-03FFFFH
252KB
Upper 63/64
1
1
0
1
0
0 to 3
002000H-03FFFFH
248KB
Upper 31/32
1
1
0
1
1
0 to 3
004000H-03FFFFH
240KB
Upper 15/16
1
1
1
0
×
0 to 3
008000H-03FFFFH
224KB
Upper 7/8
1
1
1
1
0
0 to 3
008000H-03FFFFH
224KB
Upper 7/8
1
×
1
1
1
NONE
NONE
NONE
NONE
Table1.0. GD25Q21B Protected area size (CMP=1)


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