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MCM72BA32

更新时间： 2024-09-29 22:51:23

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		/
页数	文件大小	规格书
14页	240K
描述
256KB and 512KB BurstRAM Secondary Cache Module for Pentium

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SEMICONDUCTOR TECHNICAL DATA

MCM72BA32

MCM72BA64

256KB and 512KB BurstRAM

Secondary Cache Module for

Pentium

136–LEAD DIMM

CASE 1104–01

TOP VIEW

The MCM72BA32SG and MCM72BA64SG are designed to provide a burst-

able, high performance, 256K/512K L2 cache for the Pentium microprocessor.

The modules are configured as 32K x 72 and 64K x 72 bits in a 136 pin dual read-

out single inline memory module (DIMM). The module uses four of Motorola’s

MCM67B518 or MCM67B618 BiCMOS BurstRAMs.

Bursts canbeinitiatedwitheitheraddressstatusprocessor(ADSP) or address

status controller (ADSC). Subsequent burst addresses are generated internal to

the BurstRAM by the burst advance (ADV) input pin.

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

clock (K) input. Eight write enables are provided for byte write control.

The cache family is designed to interface with popular Pentium cache control-

lers with on board TAG.

PD0 – PD2 are reserved for density and speed identification.

•

Pentium–style Burst Counter on Board

Dual Readout SIMM for Circuit Density

Single 5 V ± 5% Power Supply

All Inputs and Outputs are TTL Compatible

Three State Outputs

Byte Parity

Byte Write Capability

Fast Module Clock Rates: 66 MHz, 60 MHz, 50MHz

Decoupling Capacitors for each Fast Static RAM

High Quality Multi–Layer FR4 PWB With Separate Power and Ground Planes

I/Os are 3.3 V Compatible

BurstRAM is a trademark of Motorola.

Pentium is a trademark of Intel Corp.

REV 2

5/95

Motorola, Inc. 1995

MOTOROLA FAST SRAM

MCM72BA32•MCM72BA64

12 3 4 5 6 7...14

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