MCM63P818TQ66

更新时间： 2024-11-17 22:14:35

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		/
页数	文件大小	规格书
20页	319K
描述
128K x 36 and 256K x 18 Bit Pipelined BurstRAM Synchronous Fast Static RAM

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MCM63P818TQ66 数据手册

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SEMICONDUCTOR TECHNICAL DATA

MCM63P736

MCM63P818

Product Preview

128K x 36 and 256K x 18 Bit

Pipelined BurstRAM

Synchronous Fast Static RAM

The MCM63P736 and MCM63P818 are 4M bit synchronous fast static RAMs

designed to provide a burstable, high performance, secondary cache for the

PowerPC and other high performance microprocessors. The MCM63P736 is

organized as 128K words of 36 bits each and the MCM63P818 is organized as

256K words of 18 bits each. These devices integrate input registers, an output

circuit for reduced parts count in cache data RAM applications. Synchronous de-

sign allows precise cycle control with the use of an external clock (K).

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

enable(G), sleepmode(ZZ), andlinearburstorder(LBO)areclock(K)controlled

through positive–edge–triggered noninverting registers.

TQ PACKAGE

TQFP

CASE 983A–01

ZP PACKAGE

PBGA

CASE 999–01

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

addresses can be generated internally by the MCM63P736 and MCM63P818

(burstsequenceoperatesinlinearorinterleavedmodedependentuponthestate

of LBO) and controlled 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

toallbytes. Thebytesaredesignatedas“a”, “b”, etc. SBacontrolsDQa, SBbcon-

trols DQb, etc. Individual bytes are written if the selected byte writes SBx are as-

serted 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 MCM63P736 and MCM63P818 operate from a 3.3 V core power supply

and all outputs operate on a 2.5 V or 3.3 V power supply. All inputs and outputs

are JEDEC standard JESD8–5 compatible.

•

MCM63P736/MCM63P818–133 = 4 ns Access/7.5 ns Cycle (133 MHz)

MCM63P736/MCM63P818–100 = 5 ns Access/10 ns Cycle (100 MHz)

MCM63P736/MCM63P818–66 = 7 ns Access/15 ns Cycle (66 MHz)

3.3 V + 10%, – 5% Core Power Supply, 2.5 V or 3.3 V I/O Supply

ADSP, ADSC, and ADV Burst Control Pins

Selectable Burst Sequencing Order (Linear/Interleaved)

Two–Cycle Deselect Timing

Internally Self–Timed Write Cycle

Byte Write and Global Write Control

Sleep Mode (ZZ)

PB1 Version 2.0 Compatible

JEDEC Standard 119–Pin PBGA and 100–Pin TQFP Packages

•

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

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

10/8/97

Motorola, Inc. 1997

MOTOROLA FAST SRAM

MCM63P736•MCM63P818

12 3 4 5 6 7...20

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与MCM63P818TQ66相关器件

型号	品牌	获取价格	描述	数据表
MCM63P818TQ66R	MOTOROLA	获取价格	128K x 36 and 256K x 18 Bit Pipelined BurstRAM Synchronous Fast Static RAM
MCM63P818ZP100	MOTOROLA	获取价格	128K x 36 and 256K x 18 Bit Pipelined BurstRAM Synchronous Fast Static RAM
MCM63P818ZP100R	MOTOROLA	获取价格	128K x 36 and 256K x 18 Bit Pipelined BurstRAM Synchronous Fast Static RAM
MCM63P818ZP133	MOTOROLA	获取价格	128K x 36 and 256K x 18 Bit Pipelined BurstRAM Synchronous Fast Static RAM
MCM63P818ZP133R	MOTOROLA	获取价格	128K x 36 and 256K x 18 Bit Pipelined BurstRAM Synchronous Fast Static RAM
MCM63P818ZP66	MOTOROLA	获取价格	128K x 36 and 256K x 18 Bit Pipelined BurstRAM Synchronous Fast Static RAM
MCM63P818ZP66R	MOTOROLA	获取价格	128K x 36 and 256K x 18 Bit Pipelined BurstRAM Synchronous Fast Static RAM
MCM63P819K	MOTOROLA	获取价格	128K x 36 and 256K x 18 Bit Pipelined BurstRAM Synchronous Fast Static RAM
MCM63P819KTQ133	NXP	获取价格	256KX18 CACHE SRAM, 4ns, PQFP100, TQFP-100
MCM63P819KTQ133	MOTOROLA	获取价格	128K x 36 and 256K x 18 Bit Pipelined BurstRAM Synchronous Fast Static RAM

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