MCM63Z736

DMCM63Z818

1

MOTOROLA FAST SRAM

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 the next rising

edge of clock (CK).

• 3.3 V LVTTL and LVCMOS Compatible

• MCM63Z736/MCM63Z818–133 = 4.2 ns Access/7.5 ns Cycle (133 MHz)

MCM63Z736/MCM63Z818–100 = 5 ns Access/10 ns Cycle (100 MHz)

• Selectable Burst Sequencing Order (Linear/Interleaved)

• Internally Self–Timed Write Cycle

• Two–Cycle Deselect

• Byte Write Control

• ADV Controlled Burst

• 100–Pin TQFP Package

ZBT and Zero Bus Turnaround are trademarks of Integrated Device Technology, Inc., and the architecture is supported by

Micron Technology, Inc. and Motorola, Inc.

This document contains information on a new product. Specifications and information herein are subject to change without notice.

Order this document

by MCM63Z736/D

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

MCM63Z736

MCM63Z818

TQ PACKAGE

TQFP

CASE 983A–01

REV 1

2/6/98