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参数资料
| 型号： | W25Q32BVSFIG |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | PROM |
| 英文描述： | 32M X 1 SPI BUS SERIAL EEPROM, PDSO16 |
| 封装： | 0.300 INCH, GREEN, SOIC-16 |
| 文件页数： | 33/79页 |
| 文件大小： | 1090K |
| 代理商： | W25Q32BVSFIG |
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W25Q32BV
Publication Release Date: April 01, 2011
- 39 -
Revision F
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 fixed 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.
W6, W5
W4 = 0
W4 =1 (DEFAULT)
Wrap Around
Wrap Length
Wrap Around
Wrap Length
0 0
Yes
8-byte
No
N/A
0 1
Yes
16-byte
No
N/A
1 0
Yes
32-byte
No
N/A
1 1
Yes
64-byte
No
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.
Wrap Bit
/CS
CLK
Mode 0
Mode 3
0
1
IO
0
IO
1
IO
2
IO
3
2
3
4
5
X
don't
care
6
7
8
9
don't
care
don't
care
10
11
12
13
14
15
Instruction (77h)
Mode 0
Mode 3
X
w4
X
w5
X
w6
X
Figure 17. Set Burst with Wrap Instruction Sequence
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相关代理商/技术参数 |
参数描述 |
|---|---|
| W25Q32BVSFIP | 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 |
| W25Q32BVSSAG | 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 |
| W25Q32BVSSAP | 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 |
| W25Q32BVSSIG | 功能描述:IC SPI FLASH 32MBIT 8SOIC RoHS:是 类别:集成电路 (IC) >> 存储器 系列:SpiFlash® 标准包装:1,000 系列:- 格式 - 存储器:EEPROMs - 串行 存储器类型:EEPROM 存储容量:4K (512 x 8) 速度:400kHz 接口:I²C，2 线串口 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC（0.173"，4.40mm 宽） 供应商设备封装:8-MFP 包装:带卷 (TR) |
| W25Q32BVSSIG TR | 制造商:Winbond Electronics Corp 功能描述:SPIFLASH, 32M-BIT, 4KB UNIFORM |
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