An 8 ns 1 Mb ECL BiCMOS SRAM

A description is given of a 1-Mb*1ECL (emitter-coupled-logic) SRAM (static random access memory) fabricated with a 0.8- mu m BiCMOS technology which has 8-ns access time and is 10K-I/O (input/output) compatible. To achieve sub-10 ns address access time and low power consumption, an ECL CMOS level converter, a bit-line peripheral circuit, and an automatic power saving function are employed. Details of the 0.8- mu m BiCMOS process technology are summarized, and an oscilloscope photograph shows 8-ns address access time under nominal conditions. The RAM characteristics are summarized.<>