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参数资料
| 型号： | W25Q32BVSSIG |
| 厂商： | Winbond Electronics |
| 文件页数： | 39/78页 |
| 文件大小： | 0K |
| 描述： | IC SPI FLASH 32MBIT 8SOIC |
| 标准包装： | 90 |
| 系列： | SpiFlash® |
| 格式 - 存储器： | 闪存 |
| 存储器类型： | FLASH |
| 存储容量： | 32M（4M x 8） |
| 速度： | 104MHz |
| 接口： | SPI 串行 |
| 电源电压： | 2.7 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-SOIC（0.209"，5.30mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
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W25Q32BV
7.2.18 Set Burst with Wrap (77h)
The Set Burst with Wrap (77h) instruction is used in conjunction with “Fast Read Quad I/O” and “Word
Read Quad I/O” instructions to access a fix ed length of 8/16/32/64-byte section within a 256-byte page.
Certain applications can benefit from this feature and improve the overall system code execution
performance.
Similar to a Quad I/O instruction, the Set Burst with Wrap instruction is initiated by driving the /CS pin low
and then shifting the instruction code “77h” followed by 24 dummy bits and 8 “Wrap Bits”, W7 -0. The
instruction sequence is shown in Figure 17. Wrap bit W7 and the lower nibble W3-0 are not used.
W4 = 0
W4 =1 (DEFAULT)
W6, W5
Wrap Around
Wrap Length
Wrap Around
Wrap Length
0
0
1
1
0
1
0
1
Yes
Yes
Yes
Yes
8-byte
16-byte
32-byte
64-byte
No
No
No
No
N/A
N/A
N/A
N/A
Once W6- 4 is set by a Set Burst with Wrap instruction, all the following “Fast Read Quad I/O” and “Word
Read Quad I/O” instructions will use the W6 -4 setting to access the 8/16/32/64-byte section within any
page. To exit the “Wrap Around” function and return to normal read operation, another Set Burst with
Wrap instruction should be issued to set W4 = 1. The default value of W4 upon power on is 1. In the case
of a system Reset while W4 = 0, it is recommended that the controller issues a Set Burst with Wrap
instruction to reset W4 = 1 prior to any normal Read instructions since W25Q32BV does not have a
hardware Reset Pin.
/CS
Mode 3
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Mode 3
CLK
Mode 0
Mode 0
Instruction (77h)
don't
care
don't
care
don't
care
Wrap Bit
IO 0
IO 1
IO 2
IO 3
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
w4
w5
w6
X
X
X
X
X
Figure 17. Set Burst with Wrap Instruction Sequence
Publication Release Date: October 04,2013
- 39 -
Revision I
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相关代理商/技术参数 |
参数描述 |
|---|---|
| W25Q32BVSSIG TR | 制造商:Winbond Electronics Corp 功能描述:SPIFLASH, 32M-BIT, 4KB UNIFORM |
| W25Q32BVSSIP | 制造商:WINBOND 制造商全称:Winbond 功能描述:3V 32M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
| W25Q32BVTCAG | 制造商:WINBOND 制造商全称:Winbond 功能描述:3V 32M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
| W25Q32BVTCAP | 制造商:WINBOND 制造商全称:Winbond 功能描述:3V 32M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
| W25Q32BVTCIG | 制造商:WINBOND 制造商全称:Winbond 功能描述:3V 32M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
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