High-density and speed true dual-port memories

23 May 2001 DSP, Micros & Memory

IDT's x36 dual-port memories achieve the world's highest data transfer rates, with speeds of up to 166 MHz and a bandwidth of 12 Gbps, according to the company. The 12 memories make IDT's dual-port family one of the most comprehensive x36 family available. New synchronous and asynchronous dual-ports provide increased densities of 1, 2 and 4 Mb, with the IDT70V3319 (sync) and the IDT70V631 (async) offering the largest capacities.

IDT designed these dual-ports to meet the increasing storage and bandwidth demands of leading edge communications applications. The density and speed of these products makes them suited for use in telecommunications applications such as digital signal processing in base stations, remote network controllers, and telecom switches as well as routers, Ethernet and ATM switches.

Synchronous device features include separate clocks and separate full-boundary counters per port; pipelined access time of 3,8 ns at a cycle time of 6 ns and selectable pipeline/flow-through outputs. Asynchronous memories provide busy arbitration, semaphores, interrupts and access times of only 10ns. All the dual-ports provide selectable 3,3 V and 2,5 V operations on either port, full byte-enable support, 9 bit bytes, and JTAG functionality.

IDT's support of upgrades in a common footprint from 1/2 to 4 Mb configurations in both synchronous and asynchronous interfaces has led to major design wins for the x36 family. The x36 dual-port memories are available in PQFP, TQFP, fpBGA and BGA packages.

For further information contact Avnet Kopp, (011) 444 2333, [email protected], www.avnet.co.za

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