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参数资料
| 型号： | W25Q16CVZPAG |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | PROM |
| 英文描述： | 16M X 1 SPI BUS SERIAL EEPROM, PDSO8 |
| 封装： | 6 X 5 MM, GREEN, WSON-8 |
| 文件页数： | 27/79页 |
| 文件大小： | 1131K |
| 代理商： | W25Q16CVZPAG |
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W25Q16CV
Publication Release Date: April 01, 2011
- 33 -
Revision C
M7-0
/CS
CLK
7.2.15 Fast Read Quad I/O (EBh)
The Fast Read Quad I/O (EBh) instruction is similar to the Fast Read Dual I/O (BBh) instruction except
that address and data bits are input and output through four pins IO0, IO1, IO2 and IO3 and four Dummy
clock are required prior to the data output. The Quad I/O dramatically reduces instruction overhead
allowing faster random access for code execution (XIP) directly from the Quad SPI. The Quad Enable bit
(QE) of Status Register-2 must be set to enable the Fast Read Quad I/O Instruction.
Fast Read Quad I/O with “Continuous Read Mode”
The Fast Read Quad I/O instruction can further reduce instruction overhead through setting the
“Continuous Read Mode” bits (M7-0) after the input Address bits (A23-0), as shown in Figure 14a. The
upper nibble of the (M7-4) controls the length of the next Fast Read Quad I/O instruction through the
inclusion or exclusion of the first byte instruction code. The lower nibble bits of the (M3-0) are don’t care
(“x”). However, the IO pins should be high-impedance prior to the falling edge of the first data out clock.
If the “Continuous Read Mode” bits M5-4 = (1,0), then the next Fast Read Quad I/O instruction (after /CS
is raised and then lowered) does not require the EBh instruction code, as shown in Figure 14b. This
reduces the instruction sequence by eight clocks and allows the Read address to be immediately entered
after /CS is asserted low. If the “Continuous Read Mode” bits M5-4 do not equal to (1,0), the next
instruction (after /CS is raised and then lowered) requires the first byte instruction code, thus returning to
normal operation. A “Continuous Read Mode” Reset instruction can also be used to reset (M7-0) before
issuing normal instructions (See 7.2.20 for detail descriptions).
Figure 14a. Fast Read Quad I/O Instruction Sequence (Initial instruction or previous M5-4
≠ 10)
Mode 0
Mode 3
0
1
IO
0
IO
1
IO
2
IO
3
2
3
4
5
20
16
12
8
21
17
22
18
23
19
13
9
14
10
15
11
A23-16
6
7
8
9
4
0
5
1
6
2
7
3
A15-8
A7-0
Byte 1
Byte 2
4
0
5
1
6
2
7
3
4
0
5
1
6
2
7
3
4
0
5
1
6
2
7
3
10
11
12
13
14
4
5
6
7
15
IOs switch from
Input to Output
Byte 3
16
17
18
19
20
21
22
23
Dummy
Instruction (EBh)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| W25Q16CVZPAP | 制造商:WINBOND 制造商全称:Winbond 功能描述:3V 16M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
| W25Q16CVZPIG | 功能描述:IC SPI FLASH 16MBIT 8WSON RoHS:是 类别:集成电路 (IC) >> 存储器 系列:SpiFlash® 标准包装:2,500 系列:- 格式 - 存储器:EEPROMs - 串行 存储器类型:EEPROM 存储容量:1K (128 x 8) 速度:100kHz 接口:UNI/O?（单线） 电源电压:1.8 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MSOP 包装:带卷 (TR) |
| W25Q16CVZPIP | 制造商:WINBOND 制造商全称:Winbond 功能描述:3V 16M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
| W25Q16DVDAIG | 制造商:WINBOND 制造商全称:Winbond 功能描述:3V 16M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
| W25Q16DVDAIP | 制造商:WINBOND 制造商全称:Winbond 功能描述:3V 16M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
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