MCM63Z736

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MCM63Z736/D Advance Information 128K x 36 and 256K x 18 Bit Pipelined ZBT™ RAM Synchronous Fast Static RAM The ZBT RAM is a 4M–bit synchronous fast static RAM designed to provide zero bus turnaround. The ZBT RAM allows 100% use of bus cycles during back–to–back read/write and write/read cycles. The MCM63Z736 is organized as 128K words of 36 bits each and the MCM63Z818 is organized as 256K words of 18 bits each, fabricated with high performance silicon gate CMOS technology. This device integrates input registers, an output register, a 2–bit address counter, and high speed SRAM onto a single monolithic circuit for reduced parts count in communication applications. Synchronous design allows precise cycle control with the use of an external clock (CK). CMOS circuitry reduces the overall power consumption of the integrated functions for greater reliability. Addresses (SA), data inputs (DQ), and all control signals except output enable (G) and linear burst order (LBO) are clock (CK) controlled through positive– edge–triggered noninverting registers. Write cycles are internally self–timed and are initiated by the rising edge of the clock (CK) input. This feature eliminates complex off–chip write pulse generation and provides increased timing flexibility for incoming signals. For read cycles, pipelined SRAM output data is temporarily stored by an edge– triggered output register and then released to the output buffers at...