| Out in Front |
Motorola uses four-transistor SRAM cells in its new 4k364-bit MCM69C232 and 16k364-bit MCM-69C432 content-addressable memories (CAMs), which sell for $20 and $50, respectively. Both devices operate on 3.3V and offer a 50-MHz maximum clock rate and 160-nsec match time. They also have a separate control port and programmable match and output widths, and you can cascade them for depth expansion. Another low-cost product, NetRAM, targets routers, switches, and general dual-port applications. NetRAMs sell for $30 in a 32k336- or 64k318-bit configuration. The devices operate on 3.3V and offer a 10-nsec access time, a 66-MHz maximum clock-cycle time, self-timed write, and two bidirectional data buses. They can perform concurrent reads and writes.—by Markus Levy
Motorola, Austin, TX. (512) 933-7726, http://www.mot.com/fastsrams.
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