An ECL 100K-compatible 1024x4 bit RAM with 15 ns access time

An ECL 100K-compatible 1024/spl times/4 bit RAM with 15 ns access time, 900 mW power dissipation, and a chip size of 18.3 mm/SUP 2/ has been developed for caches and control memories of high-performance computer systems. The 1K/spl times/4 organisation mode combines the lower cost per bit of a 4K-bit device with the higher memory-module design flexibility of a 1K word unit. The excellent speed performance together with the high packing density have been achieved by using an oxide isolation technology with oxide-walled emitters in conjunction with novel circuit techniques.