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PDF GD25Q20B Data sheet ( Hoja de datos )
| Número de pieza | GD25Q20B | |
| Descripción | Uniform sector Dual and Quad Serial Flash | |
| Fabricantes | GigaDevice | |
| Logotipo |  |
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Uniform Sector
Dual and Quad Serial Flash
GD25Q40B/20B
GD25Q40B/20B
DATASHEET
1
1 page  
Uniform Sector
Dual and Quad Serial Flash
2. GENERAL DESCRIPTION
GD25Q40B/20B
The GD25Q40B/20B Serial flash supports the standard Serial Peripheral Interface (SPI), and a high performance
Dual/Quad output as well as Dual/Quad SPI: Serial Clock, Chip Select, Serial Data I/O0 (SI), I/O1 (SO), I/O2 (WP#), and
I/O3 (HOLD#). SPI clock frequencies of up to 120MHz are supported allowing equivalent clock rates of 240MHz for Dual
Output & Dual I/O read command, and 480MHz for Quad output & Quad I/O read command.
CONNECTION DIAGRAM
CS# 1
8 VCC
SO
WP#
27
Top View
36
HOLD#
SCLK
VSS 4
5 SI
8–LEAD SOP/TSSOP
CS# 1
SO 2
WP# 3
VSS 4
Top View
8–LEAD USON
8 VCC
7 HOLD#
6 SCLK
5 SI
PIN DESCRIPTION
Pin Name
I/O
CS# I
SO (IO1)
I/O
WP# (IO2)
I/O
VSS
SI (IO0)
I/O
SCLK
I
HOLD# (IO3)
I/O
VCC
Description
Chip Select Input
Data Output (Data Input Output 1)
Write Protect Input (Data Input Output 2)
Ground
Data Input (Data Input Output 0)
Serial Clock Input
Hold Input (Data Input Output 3)
Power Supply
5
5 Page 
Uniform Sector
Dual and Quad Serial Flash
GD25Q40B/20B
Table1a. GD25Q40B Protected area size (CMP=1)
Status Register Content
Memory Content
BP4 BP3 BP2 BP1 BP0
XX0 0 0
00001
Blocks
0 to 7
0 to 6
Addresses
000000H-07FFFFH
000000H-06FFFFH
Density
512KB
448KB
Portion
ALL
Lower 7/8
00010
0 to 5
000000H-05FFFFH
384KB
Lower 3/4
00011
0 to 3
000000H-03FFFFH
256KB
Lower 1/2
01001
1 to 7
010000H-07FFFFH
448KB
Upper 7/8
01010
2 to 7
020000H-07FFFFH
384KB
Upper 3/4
01011
4 to 7
040000H-07FFFFH
256KB
Upper 1/2
0 X 1 X X NONE
NONE
NONE
NONE
10001
0 to 7
000000H-07EFFFH
508KB Lower 127/128
10010
0 to 7
000000H-07DFFFH
504KB
Lower 63/64
10011
0 to 7
000000H-07BFFFH
496KB
Lower 31/32
1 0 1 0 X 0 to 7
000000H-077FFFH
480KB
Lower 15/16
10110
0 to 7
000000H-077FFFH
480KB
Lower 15/16
11001
0 to 7
001000H-07FFFFH
508KB Upper 127/128
11010
0 to 7
002000H-07FFFFH
504KB
Upper 63/64
11011
0 to 7
004000H-07FFFFH
496KB
Upper 31/32
1 1 1 0 X 0 to 7
008000H-07FFFFH
480KB
Upper 15/16
11110
0 to 7
008000H-07FFFFH
480KB
Upper 15/16
1 X 1 1 1 NONE
NONE
NONE
NONE
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet GD25Q20B.PDF ] | |
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