Datasheet > MU9C4480BF-90TBC

MU9C4480BF-90TBC

更新时间： 2024-01-04 09:39:34

品牌	Logo	应用领域
MUSIC		双倍数据速率静态存储器内存集成电路
页数	文件大小	规格书
32页	236K
描述
Content Addressable SRAM, 4KX64, 90ns, CMOS, PQFP64

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MU9C4480BF-90TBC 技术参数

是否Rohs认证：	符合	生命周期：	Contact Manufacturer
包装说明：	QFP, QFP64,.6SQ,32	Reach Compliance Code：	unknown
风险等级：	5.8	最长访问时间：	90 ns
JESD-30 代码：	S-PQFP-G64	内存密度：	262144 bit
内存集成电路类型：	CONTENT ADDRESSABLE SRAM	内存宽度：	64
湿度敏感等级：	3	端子数量：	64
字数：	4096 words	字数代码：	4000
最高工作温度：	70 °C	最低工作温度：
组织：	4KX64	封装主体材料：	PLASTIC/EPOXY
封装代码：	QFP	封装等效代码：	QFP64,.6SQ,32
封装形状：	SQUARE	封装形式：	FLATPACK
电源：	3.3 V	认证状态：	Not Qualified
最大待机电流：	0.002 A	子类别：	SRAMs
最大压摆率：	0.14 mA	标称供电电压 (Vsup)：	3.3 V
表面贴装：	YES	技术：	CMOS
温度等级：	COMMERCIAL	端子形式：	GULL WING
端子节距：	0.8 mm	端子位置：	QUAD
Base Number Matches：	1

MU9C4480BF-90TBC 数据手册

LANCAM B Family

General Description

GENERAL DESCRIPTION

The LANCAM consists of various depths of 64-bit

Content Addressable Memories (CAMs), with a 16-bit

wide interface.

the database. The ability to search data words up to 64 bits

wide allows large address spaces to be searched rapidly

and efficiently. A patented architecture links each CAM

entry to associated data and makes this data available for

use after a successful compare operation.

CAMs, also known as associative memories, operate in the

converse way to random access memories (RAM). In

RAM, the input to the device is an address and the output

is the data stored at that address. In CAM, the input is a

data sample and the output is a flag to indicate a match and

the address of the matching data. As a result, CAM

searches large databases for matching data in a short,

constant time period, no matter how many entries are in

The MUSIC LANCAMs are ideal for address filtering and

translation applications in LAN switches and routers. The

LANCAMs are also well suited to encryption, database

accelerators, and image processing.

OPERATIONAL OVERVIEW

To use the LANCAM, the user loads the data into the

Comparand register, which is automatically compared to

all valid CAM locations. The device then indicates

whether or not one or more of the valid CAM locations

contains data that matches the target data. The status of

each CAM location is determined by two validity bits at

each memory location. The two bits are encoded to render

four validity conditions: Valid, Empty, Skip, and RAM,

shown in Status Register Bits on page 24 (bits 29:28). The

memory can be partitioned into CAM and associated

RAM segments on 16-bit boundaries, but by using one of

the two available Mask registers, the CAM/RAM

partitioning can be set at any arbitrary size between zero

and 64 bits.

data to the Control, Comparand, and Mask registers

automatically triggers a compare. Compares also may be

initiated by a command to the device. Associated RAM

data is available immediately after a successful compare

operation. The Status register reports the results of

compares including all flags and addresses. Two Mask

registers are available and can be used in two different

ways: to mask comparisons or to mask data writes. The

RAM validity type allows additional masks to be stored in

the CAM array where they may be retrieved rapidly.

A simple four-wire control interface and commands

loaded into the Instruction decoder control the device. A

powerful instruction set increases the control flexibility

and minimizes software overhead. Additionally, dedicated

pins for match and multiple-match flags enhance

performance when the device is controlled by a state

machine. These and other features make the LANCAM a

powerful associative memory that drastically reduces

search delays.

The LANCAM’s internal data path is 64 bits wide for

rapid internal comparison and data movement. Vertical

cascading of additional LANCAMs in a daisy chain

fashion extends the CAM memory depth for large

databases. Cascading requires no external logic. Loading

Rev. 5.2

123 4 5 6 7...32

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与MU9C4480BF-90TBC相关器件

型号	品牌	描述	获取价格	数据表
MU9C4480L-12DC	MUSIC	Content Addressable SRAM, 4KX64, 85ns, CMOS, PQCC44	获取价格
MU9C4480L-12DI	ETC	Content Addressable Memory	获取价格
MU9C4480L-70DC	MUSIC	LANCAM A/L series	获取价格
MU9C4480L-70DI	MUSIC	LANCAM A/L series	获取价格
MU9C4480L-90DC	MUSIC	LANCAM A/L series	获取价格
MU9C4480L-90DI	MUSIC	LANCAM A/L series	获取价格

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