NM27C520 512K EPROM integrates an 8-bit address latch on the chip and fits into a single 20-pin, Small Outline Integrated Circuit package. The board-space requirement is reduced to about one-sixth of what is required for a standard 512K EPROM footprint, and a latch circuit eliminates the need for a second chip on board. Data sheets describe the product and its features. A functional product description and charts on programming and electrical characteristics are also included.
Fairchild Semiconductor, 333 Western Ave., South Portland, ME 04106.
A Tokyo company, Miraisens Inc., has unveiled a device that allows users to move virtual 3D objects around and "feel" them via a vibration sensor. The device has many applications within the gaming, medical, and 3D-printing industries.
In the last few years, use of CFD in building design has increased manifolds. Computational
fluid dynamics is effective in analyzing the flow and thermal properties of air within spaces. It can be used in buildings to find the best measures for comfortable temperature at low energy use.
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