Datasheet > SB82434NX

SB82434NX

更新时间： 2024-09-13 19:55:03

品牌	Logo	应用领域
英特尔 - INTEL		PC 动态存储器外围集成电路
页数	文件大小	规格书
191页	2636K
描述
DRAM Controller, 512M X 8, MOS, PQFP208, QFP-208

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技术参数
数据手册

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SB82434NX 技术参数

生命周期：	Obsolete	零件包装代码：	QFP
包装说明：	FQFP,	针数：	208
Reach Compliance Code：	unknown	风险等级：	5.84
地址总线宽度：	32	边界扫描：	NO
总线兼容性：	PCI; EISA; ISA; PENTIUM 610; PENTIUM 735; PENTIUM 815	外部数据总线宽度：	32
JESD-30 代码：	S-PQFP-G208	长度：	28 mm
低功率模式：	YES	内存组织：	512M X 8
区块数量：	8	端子数量：	208
封装主体材料：	PLASTIC/EPOXY	封装代码：	FQFP
封装形状：	SQUARE	封装形式：	FLATPACK, FINE PITCH
认证状态：	Not Qualified	座面最大高度：	3.75 mm
标称供电电压：	5 V	表面贴装：	YES
技术：	MOS	端子形式：	GULL WING
端子节距：	0.5 mm	端子位置：	QUAD
宽度：	28 mm	uPs/uCs/外围集成电路类型：	MEMORY CONTROLLER, DRAM
Base Number Matches：	1

SB82434NX 数据手册

82434LX/82434NX PCI, CACHE AND MEMORY

CONTROLLER (PCMC)

Supports the Pentium^TMProcessor at

iCOMP^TMIndex 510T60 MHz and iCOMP

Index 567T66 MHz

Supports the Pentium Processor at

iCOMP Index 735T90 MHz, iCOMP Index

815T100 MHz, and iCOMP Index 610T75

MHz

Integrated DRAM Controller

Ð Supports 2 MBytes to 192 MBytes of

Cacheable Main Memory for the

82434LX

Ð Supports 2 MBytes to 512 MBytes of

Cacheable Main Memory for the

82434NX

Ð Supports DRAM Access Times of

70 ns and 60 ns

Ð CPU Writes Posted to DRAM 4-1-1-1

Ð Refresh Cycles Decoupled from ISA

Refresh to Reduce the DRAM

Access Latency

Supports Pipelined Addressing

Capability of the Pentium Processor

The 82430NX Drives 3.3V Signal Levels

on the CPU and Cache Interfaces

High Performance CPU/PCI/Memory

Interfaces via Posted Write and Read

Prefetch Buffers

Ð Six RAS Lines (82434LX)

Ð Eight RAS Lines (82434NX)

Ð Refresh by RAS -Only, or CAS-

Before-RAS , in Single or Burst

Fully Synchronous PCI Interface with

Full Bus Master Capability

of Four

Host/PCI Bridge

Ð Translates CPU Cycles into PCI Bus

Cycles

Supports the Pentium Processor

Internal Cache in Either Write-Through

or Write-Back Mode

Ð Translates Back-to-Back Sequential

CPU Memory Writes into PCI Burst

Cycles

Ð Burst Mode Writes to PCI in Zero PCI

Wait-States (i.e. Data Transfer Every

Cycle)

Ð Full Concurrency Between CPU-to-

Main Memory and PCI-to-PCI

Transactions

Ð Full Concurrency Between CPU-to-

Second Level Cache and PCI-to-Main

Memory Transactions

Ð Same Cache and Memory System

Logic Design for ISA and EISA

Systems

Ð Cache Snoop Filter Ensures Data

Consistency for PCI-to-Main Memory

Transactions

Programmable Attribute Map of DOS

and BIOS Regions for System

Flexibility

Integrated Low Skew Clock Driver for

Distributing Host Clock

Integrated Second Level Cache

Controller

Ð Integrated Cache Tag RAM

Ð Write-Through and Write-Back Cache

Modes for the 82434LX

Ð Write-Back for the 82434NX

Ð 82434NX Supports Low-Power Cache

Standby

Ð Direct Mapped Organization

Ð Supports Standard and Burst SRAMs

Ð 256-KByte and 512-KByte Sizes

Ð Cache Hit Cycle of 3-1-1-1 on Reads

and Writes Using Burst SRAMs

Ð Cache Hit Cycle of 3-2-2-2 on Reads

and 4-2-2-2 on Writes Using

Standard SRAMs

208-Pin QFP Package

*Other brands and names are the property of their respective owners.

December 1994

Order Number: 290479-004

12 3 4 5 6 7...191

中文翻译

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与SB82434NX相关器件

型号	品牌	获取价格	描述	数据表
SB82437FX	INTEL	获取价格	DRAM Controller, 128M X 8, MOS, PQFP208, QFP-208
SB82438MX	INTEL	获取价格	Microprocessor Circuit, CMOS, PQFP100, TQFP-100
SB825020JE9	VISHAY	获取价格	CAPACITOR, TANTALUM, SOLID, POLARIZED, 20 V, 8.2 uF, THROUGH HOLE MOUNT, AXIAL LEADED
SB82558	INTEL	获取价格	LAN Controller, 1 Channel(s), 12.5MBps, CMOS, PQFP208, SHRINK, QFP-208
SB830	PACELEADER	获取价格	SCHOTTKY BARRIER RECTIFIER
SB830	GULFSEMI	获取价格	SCHOTTKY BARRIER RECTIFIER VOLTAGE: 20 TO 60V CURRENT: 8.0A
SB830	LRC	获取价格	Schottky Barrier Rectifiers Reverse Voltage 20 to 100V
SB830	DIOTEC	获取价格	Schottky Barrier Rectifiers
SB830	WTE	获取价格	8.0A SCHOTTKY BARRIER RECTIFIER
SB830	PANJIT	获取价格	SCHOTTKY BARRIER RECTIFIERS(VOLTAGE 20 to 100 Volts CURRENT - 8 Ampere)

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