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参数资料
| 型号： | W25Q32DWZPIG |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | PROM |
| 英文描述： | 256K X 16 SPI BUS SERIAL EEPROM, 7.5 ns, PDSO8 |
| 封装： | 6 X 5 MM, GREEN, WSON-8 |
| 文件页数： | 33/82页 |
| 文件大小： | 1155K |
| 代理商： | W25Q32DWZPIG |
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W25Q32DW
Publication Release Date: January 18, 2011
- 39 -
Preliminary - Revision C
10.2.18 Octal Word Read Quad I/O (E3h)
The Octal Word Read Quad I/O (E3h) instruction is similar to the Fast Read Quad I/O (EBh) instruction
except that the lower four Address bits (A0, A1, A2, A3) must equal 0. As a result, the dummy clocks are
not required, which further reduces the instruction overhead allowing even faster random access for code
execution (XIP). The Quad Enable bit (QE) of Status Register-2 must be set to enable the Octal Word
Read Quad I/O Instruction.
Octal Word Read Quad I/O with “Continuous Read Mode”
The Octal Word 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 17a. The
upper nibble of the (M7-4) controls the length of the next Octal Word 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 E3h instruction code, as shown in Figure 17b. 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. It is recommended to input FFh on IO0 for the next instruction (8 clocks), to ensure M4
= 1 and return the device to normal operation.
M7-0
/CS
CLK
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
IOs switch from
Input to Output
Byte 3
15
16
17
18
19
20
21
Instruction (E3h)
4
0
5
1
6
2
7
3
Byte 4
Figure 17a. Octal Word Read Quad I/O Instruction (Initial instruction or previous M5-4
≠ 10, SPI Mode only)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| W25Q32DWZPIG TR | 制造商:Winbond Electronics Corp 功能描述:IC FLASH 32MBIT 104MHZ 8WSON |
| W25Q32DWZPIP | 制造商:WINBOND 制造商全称:Winbond 功能描述:1.8V 32M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI |
| W25Q32FVSFIG | 功能描述:IC FLASH SPI 32MBIT 16SOIC RoHS:是 类别:集成电路 (IC) >> 存储器 系列:SpiFlash® 标准包装:72 系列:- 格式 - 存储器:RAM 存储器类型:SRAM - 同步 存储容量:4.5M（256K x 18） 速度:133MHz 接口:并联 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 70°C 封装/外壳:100-LQFP 供应商设备封装:100-TQFP（14x20） 包装:托盘 |
| W25Q32FVSSIG | 制造商:Winbond Electronics Corp 功能描述:Flash Serial-SPI 3V/3.3V 32Mbit 4M x 8bit 8.5ns 8-Pin SOIC 制造商:Winbond Electronics Corp 功能描述:32MB F VERSIOB SPI FLASH 制造商:Winbond Electronics Corp 功能描述:IC FLASH 32MBIT 104MHZ 8SOIC |
| W25Q32FVSSIG TR | 制造商:Winbond Electronics Corp 功能描述:IC FLASH 32MBIT 104MHZ 8SOIC |
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