Multichip NOR Flash Module Packs 64 Mbytes Of Configurable Storage

May 10, 2004

Housed in a 13- by 22-mm, 159-contact, plastic BGA package, the W78M4V-XSBX flash-memory component provides 64 Mbytes of storage. That storage can be configured as either 8 Mwords by 64 bits, two banks of 8 Mwords by 32 bits, or four banks of 8 Mwords by 16 bits. A page-mode capability allows access times of as little as 25 ns and an eight-word-fast page read. Four access time ,speed grades are available for the module—70, 90, 100, and 120 ns. Simultaneous read/write functionality enables eight continuous reads from one bank while executing erase/program functions in another bank. There's zero-latency switching from read to write operations. In lots of 1000 units, the military-temperature-grade NOR module sells for $300 apiece. Delivery is six weeks after receipt of order.

White Electronic Designs Corp.www.whiteedc.com

About the Author

Dave Bursky | Technologist

Dave Bursky, the founder of New Ideas in Communications, a publication website featuring the blog column Chipnastics – the Art and Science of Chip Design. He is also president of PRN Engineering, a technical writing and market consulting company. Prior to these organizations, he spent about a dozen years as a contributing editor to Chip Design magazine. Concurrent with Chip Design, he was also the technical editorial manager at Maxim Integrated Products, and prior to Maxim, Dave spent over 35 years working as an engineer for the U.S. Army Electronics Command and an editor with Electronic Design Magazine.