參數(shù)資料
型號: W25Q80BVSSIG
廠商: WINBOND ELECTRONICS CORP
元件分類: PROM
英文描述: 8M X 1 SPI BUS SERIAL EEPROM, PDSO8
封裝: 0.208 INCH, GREEN, PLASTIC, SOIC-8
文件頁數(shù): 51/75頁
文件大?。?/td> 1055K
代理商: W25Q80BVSSIG
W25Q80BV
Publication Release Date: October 06, 2010
- 55 -
Revision D
9.2.36 Read SFDP Register (5Ah)
The W25Q80BV features a 256-Byte Serial Flash Discoverable Parameter (SFDP) register that contains
information about devices operational capability such as available commands, timing and other features.
The SFDP parameters are stored in one or more Parameter Identification (PID) tables. Currently only one
PID table is specified but more may be added in the future. The Read SFDP Register instruction is
compatible with the SFDP standard initially established in 2010 for PC and other applications. Most
Winbond SpiFlash Memories shipped after June 2010 (date code 1023 and beyond) support the SFDP
feature as specified in the applicable datasheet.
The Read SFDP instruction is initiated by driving the /CS pin low and shifting the instruction code “5Ah”
followed by a 24-bit address (A23-A0)
(1) into the DI pin. Eight “dummy” clocks are also required before the
SFDP register contents are shifted out on the falling edge of the 40
th CLK with most significant bit (MSB)
first as shown in figure 34. For SFDP register values and descriptions, refer to the following SFDP
Definition table.
Note: 1. A23-A8 = 0; A7-A0 are used to define the starting byte address for the 256-Byte SFDP Register.
/CS
CLK
DI
(IO
0)
DO
(IO
1)
Mode 0
Mode 3
0
1
2
3
4
5
6
7
Instruction (5Ah)
High Impedance
8
9
10
28
29
30
31
24-Bit Address
23
22
21
3
2
1
0
Data Out 1
(IO
0)
DO
(IO
1)
*
/CS
CLK
DI
32
33
34
35
36
37
38
39
Dummy Byte
40
41
42
44
45
46
47
48
49
50
51
52
53
54
55
High Impedance
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
43
31
0
Data Out 2
*
7
6
5
4
3
2
1
0
= MSB
*
Figure 34. Read SFDP Register Instruction Sequence Diagram
相關(guān)PDF資料
PDF描述
WED7G416IDE33ADC25 26M X 16 FLASH 3.3V PROM, DMA144
W3HG64M72EEU806PD4IGG 64M X 72 DDR DRAM MODULE, DMA200
W3EG7262S265D3 DDR DRAM MODULE, DMA184
W7NCF08GH10CS3JM1G FLASH 3.3V PROM MODULE, XMA50
W7NCF08GH10CSA8HM1G FLASH 3.3V PROM MODULE, XMA50
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W25Q80BVSSIG TR 制造商:Winbond Electronics Corp 功能描述:SPIFLASH, 8M-BIT, 4KB UNIFORM 制造商:Winbond Electronics Corp 功能描述:IC FLASH 8MBIT 104MHZ 8SOIC
W25Q80BVSSIG/REELS 制造商:Winbond Electronics Corp 功能描述:
W25Q80BVSSIG-T 制造商:Winbond Electronics 功能描述:8MB SPI FLASH
W25Q80BVSSIP 制造商:WINBOND 制造商全稱:Winbond 功能描述:8M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI
W25Q80BVZPAG 制造商:WINBOND 制造商全稱:Winbond 功能描述:8M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI