Flash Memory Speaks Double SPI

May 11, 2006
Winbond's 25X SpiFlash family delivers nonvolatile memory in capacities up to 64 Mbits. Its maximum transfer rate is 75 MHz, and its dual data pins provide an effective rate of 150 MHz. This throughput is in the range of parallel flash. Such an approach

Winbond's 25X SpiFlash family delivers nonvolatile memory in capacities up to 64 Mbits. Its maximum transfer rate is 75 MHz, and its dual data pins provide an effective rate of 150 MHz. This throughput is in the range of parallel flash. Such an approach extends the normal three-wire serial peripheral interface (SPI) to four wires, so a single eight-pin small-outline IC can easily support the 25X SpiFlash. The chips have 4-kbyte sectors. A 64-kbyte block can be erased in 1 s. The 4-Mbit chip costs $0.71 and the 8-Mbit chip costs $0.98, both in 10,000-unit lots.

See Associated Figure

Winbond
www.winbond.com

About the Author

William G. Wong | Senior Content Director - Electronic Design and Microwaves & RF

I am Editor of Electronic Design focusing on embedded, software, and systems. As Senior Content Director, I also manage Microwaves & RF and I work with a great team of editors to provide engineers, programmers, developers and technical managers with interesting and useful articles and videos on a regular basis. Check out our free newsletters to see the latest content.

You can send press releases for new products for possible coverage on the website. I am also interested in receiving contributed articles for publishing on our website. Use our template and send to me along with a signed release form. 

Check out my blog, AltEmbedded on Electronic Design, as well as his latest articles on this site that are listed below. 

You can visit my social media via these links:

I earned a Bachelor of Electrical Engineering at the Georgia Institute of Technology and a Masters in Computer Science from Rutgers University. I still do a bit of programming using everything from C and C++ to Rust and Ada/SPARK. I do a bit of PHP programming for Drupal websites. I have posted a few Drupal modules.  

I still get a hand on software and electronic hardware. Some of this can be found on our Kit Close-Up video series. You can also see me on many of our TechXchange Talk videos. I am interested in a range of projects from robotics to artificial intelligence. 

Sponsored Recommendations

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!