MCM63P631ATQ117R

更新时间： 2024-11-24 22:05:55

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		/
页数	文件大小	规格书
16页	232K
描述
64K x 32 Bit Pipelined BurstRAM Synchronous Fast Static RAM

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MCM63P631ATQ117R 数据手册

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SEMICONDUCTOR TECHNICAL DATA

MCM63P631A

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64K x 32 Bit Pipelined BurstRAM

Synchronous Fast Static RAM

The MCM63P631A is a 2M bit synchronous fast static RAM designed to pro-

vide a burstable, high performance, secondary cache for the 68K Family, Pow-

erPC , and Pentium microprocessors. It is organized as 64K words of 32 bits

each. 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 cache data RAM applications. Synchronous design allows precise cycle

control with the use of an external clock (K). CMOS circuitry reduces the overall

power consumption of the integrated functions for greater reliability.

Addresses (SA), data inputs (DQx), and all control signals except output

enable (G), sleep mode (ZZ), and Linear Burst Order (LBO) are clock (K) con-

trolled through positive–edge–triggered noninverting registers.

TQ PACKAGE

TQFP

CASE 983A–01

Bursts can be initiated with either ADSP or ADSC input pins. Subsequent burst

addresses can be generated internally by the MCM63P631A (burst sequence

operates in linear or interleaved mode dependent upon state of LBO) and con-

trolled by the burst address advance (ADV) input pin.

Write cycles are internally self–timed and are initiated by the rising edge of the

clock (K) input. This feature eliminates complex off–chip write pulse generation

and provides increased timing flexibility for incoming signals.

Synchronous byte write (SBx), synchronous global write (SGW), and synchro-

nous write enable SW are provided to allow writes to either individual bytes or to

all bytes. The four bytes are designated as “a”, “b”, “c”, and “d”. SBa controls

DQa, SBb controls DQb, etc. Individual bytes are written if the selected byte

writes SBx are asserted with SW. All bytes are written if either SGW is asserted

or if all SBx and SW are asserted.

For read cycles, pipelined SRAMs output data is temporarily stored by an

edge–triggeredoutput register and then released to the output buffers at the next

rising edge of clock (K).

The MCM63P631A operates from a 3.3 V power supply, all inputs and outputs

are LVTTL compatible.

•

MCM63P631A–117 = 4.5 ns access / 8.5 ns cycle (117 MHz)

MCM63P631A–100 = 4.5 ns access / 10 ns cycle (100 MHz)

MCM63P631A–75 = 7 ns access / 13.3 ns cycle (75 MHz)

MCM63P631A–66 = 8 ns access / 15 ns cycle (66 MHz)

Single 3.3 V + 10%, – 5% Power Supply

ADSP, ADSC, and ADV Burst Control Pins

Selectable Burst Sequencing Order (Linear/Interleaved)

Internally Self–Timed Write Cycle

Byte Write and Global Write Control

Sleep Mode (ZZ)

PB1 Version 2.0 Compatible

Single–Cycle Deselect Timing

•

JEDEC Standard 100–Pin TQFP Package

The PowerPC name is a trademark of IBM Corp., used under license therefrom.

Pentium is a trademark of Intel Corp.

This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.

9/30/97

Motorola, Inc. 1997

MOTOROLA FAST SRAM

MCM63P631A

12 3 4 5 6 7...16

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与MCM63P631ATQ117R相关器件

型号	品牌	获取价格	描述	数据表
MCM63P631ATQ66	MOTOROLA	获取价格	64K x 32 Bit Pipelined BurstRAM Synchronous Fast Static RAM
MCM63P631ATQ66R	MOTOROLA	获取价格	64K x 32 Bit Pipelined BurstRAM Synchronous Fast Static RAM
MCM63P631ATQ75	MOTOROLA	获取价格	64K x 32 Bit Pipelined BurstRAM Synchronous Fast Static RAM
MCM63P631ATQ75R	MOTOROLA	获取价格	64K x 32 Bit Pipelined BurstRAM Synchronous Fast Static RAM
MCM63P631TQ117	MOTOROLA	获取价格	64K x 32 Bit Pipelined BurstRAM Synchronous Fast Static RAM
MCM63P631TQ117R	MOTOROLA	获取价格	64K x 32 Bit Pipelined BurstRAM Synchronous Fast Static RAM
MCM63P631TQ4.5	MOTOROLA	获取价格	64K x 32 Bit Pipelined BurstRAM Synchronous Fast Static RAM
MCM63P631TQ4.5R	MOTOROLA	获取价格	64K x 32 Bit Pipelined BurstRAM Synchronous Fast Static RAM
MCM63P631TQ7	MOTOROLA	获取价格	64K x 32 Bit Pipelined BurstRAM Synchronous Fast Static RAM
MCM63P631TQ7R	MOTOROLA	获取价格	64K x 32 Bit Pipelined BurstRAM Synchronous Fast Static RAM

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