Digital ICs/DSP: Micro-DIMMs Shave 35% Off The Space SO-DIMMs Need

Oct. 4, 2004

The DDR2 Micro-DIMM modules for Sub-Notebooks are only 65% of the size of equal capacity small-outline dual-inline memory modules (SO-DIMMs) used for notebook computers. The Micro-DIMMs' 214-pin "mezzanine connector" reduces the size of the module and the area the connector covers by about 40% compared to standard SO-DIMMs. Available with capacities of 256, 512, and 1024 Mbytes, Micro-DIMMs are implemented with the company's single-die 512-Mbit or 1-Gbit DDR2 memories, which are housed in fine-pitch BGA packages. Samples are available in PC2-3200 and PC2-4300 speed grades. The 256-Mbyte Micro-DIMMs sell for between $80 and $100, and the 512-Mbyte versions go for $150 to $170. Prices for the 1-Gbyte units are available on request.

Infineon Technologies AGwww.infineon.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.