參數(shù)資料
型號: W25X40-VSSI
廠商: WINBOND ELECTRONICS CORP
元件分類: PROM
英文描述: 4M X 1 FLASH 2.7V PROM, PDSO8
封裝: 0.208 INCH, PLASTIC, SOIC-8
文件頁數(shù): 14/42頁
文件大小: 1198K
代理商: W25X40-VSSI
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
相關(guān)PDF資料
PDF描述
WF2M16W-90FLI5A 2M X 16 FLASH 5V PROM MODULE, 90 ns, CDFP44
W3EG72129S335JD3SG 128M X 72 DDR DRAM MODULE, 0.7 ns, DMA184
W3EG72129S202JD3SG 128M X 72 DDR DRAM MODULE, 0.75 ns, DMA184
W3EG64128S202JD3 128M X 64 DDR DRAM MODULE, DMA184
WE512K8300CIA 512K X 8 EEPROM 5V MODULE, 300 ns, CDIP32
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W25X40VSSIG 功能描述:IC FLASH 4MBIT 75MHZ 8SOIC RoHS:是 類別:集成電路 (IC) >> 存儲器 系列:SpiFlash® 標準包裝:1,000 系列:- 格式 - 存儲器:RAM 存儲器類型:移動 SDRAM 存儲容量:256M(8Mx32) 速度:133MHz 接口:并聯(lián) 電源電壓:1.7 V ~ 1.95 V 工作溫度:-40°C ~ 85°C 封裝/外殼:90-VFBGA 供應(yīng)商設(shè)備封裝:90-VFBGA(8x13) 包裝:帶卷 (TR) 其它名稱:557-1327-2
W25X40VSSIG T&R 功能描述:IC FLASH 4MBIT 75MHZ 8SOIC RoHS:是 類別:集成電路 (IC) >> 存儲器 系列:SpiFlash® 標準包裝:1,000 系列:- 格式 - 存儲器:RAM 存儲器類型:移動 SDRAM 存儲容量:256M(8Mx32) 速度:133MHz 接口:并聯(lián) 電源電壓:1.7 V ~ 1.95 V 工作溫度:-40°C ~ 85°C 封裝/外殼:90-VFBGA 供應(yīng)商設(shè)備封裝:90-VFBGA(8x13) 包裝:帶卷 (TR) 其它名稱:557-1327-2
W25X40VSSIZ 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
W25X40VZPC 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
W25X40VZPCG 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