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參數(shù)資料
| 型號(hào)： | W25X20-VSSI-G |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | PROM |
| 英文描述： | 2M X 1 FLASH 2.7V PROM, PDSO8 |
| 封裝： | 0.208 INCH, GREEN, PLASTIC, SOIC-8 |
| 文件頁(yè)數(shù)： | 14/42頁(yè) |
| 文件大小： | 1198K |
| 代理商： | W25X20-VSSI-G |
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W25X10, W25X20, W25X40 AND W25X80
Publication Release Date: February 13, 2006
- 21 -
Revision E
9.2.9
Fast Read Dual Output (3Bh)
The Fast Read Dual Output (3Bh) instruction is similar to the standard Fast Read (0Bh) instruction
except that data is output on two pins, DO and DIO, instead of just DO. This allows data to be
transferred from the W25X10/20/40/80 at twice the rate of standard SPI devices. The Fast Read Dual
Output instruction is ideal for quickly downloading code from Flash to RAM upon power-up or for
applications that cache code-segments to RAM for execution.
Similar to the Fast Read instruction, the Fast Read Dual Output instruction can operate at the highest
possible frequency of FR (see AC Electrical Characteristics). This is accomplished by adding eight
“dummy” clocks after the 24-bit address as shown in figure 10. The dummy clocks allow the device's
internal circuits additional time for setting up the initial address. The input data during the dummy
clocks is “don’t care”. However, the DIO pin should be high-impedance prior to the falling edge of the
first data out clock.
Figure 10. Fast Read Dual Output Instruction Sequence Diagram
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| WMS512K8B-25FECEA | 512K X 8 STANDARD SRAM, 25 ns, CDFP32 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W25X20VSSIZ | 制造商:WINBOND 制造商全稱:Winbond 功能描述:1M-BIT, 2M-BIT, 4M-BIT AND 8M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI |
| W25X20VZPC | 制造商:WINBOND 制造商全稱:Winbond 功能描述:1M-BIT, 2M-BIT, 4M-BIT AND 8M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI |
| W25X20VZPCG | 制造商:WINBOND 制造商全稱:Winbond 功能描述:1M-BIT, 2M-BIT, 4M-BIT AND 8M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI |
| W25X20VZPCZ | 制造商:WINBOND 制造商全稱:Winbond 功能描述:1M-BIT, 2M-BIT, 4M-BIT AND 8M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI |
| W25X20VZPI | 制造商:WINBOND 制造商全稱:Winbond 功能描述:1M-BIT, 2M-BIT, 4M-BIT AND 8M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI |
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