Datasheet > MU9C4480A

MU9C4480A

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
MUSIC		局域网
页数	文件大小	规格书
32页	332K
描述
LANCAM A/L series

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MU9C4480A 数据手册

Data Sheet

LANCAM A/L series (not recommended for new designs)

APPLICATION BENEFITS

DISTINCTIVE CHARACTERISTICS

The 256x64 to 4Kx64 LANCAM A/L series facilitate

numerous operations:

•

High density CMOS Content Addressable Memory

(CAM)

•

Available in the following depths: 256 (3480), 512

(5480), 1K (1480), 2K (2480) and 4K (4480) words.

•

Fast speed allows processing of both DA and SA

within 450 ns, equivalent to 138 ports of 10 Base-T or

13 ports of 100 Base-T Ethernet (50 ns device)

•

64-bit per word memory organization

16-bit I/O

Full CAM features allow all operations to be masked

on a bit-by-bit basis

Fast 50 ns compare speed (1480A and 2480A)

•

Powerful instruction set for any list processing need

Dual configuration register set for rapid context

switching

Shiftable Comparand and Mask registers assist in

proximate matching algorithms

•

16-bit CAM/RAM segments with MUSIC’s patented

partitioning

•

Cascadable to any practical length with no

performance penalties

/MA and /MM output flags to enable faster system

performance

•

Industrial temperature grades for harsh environments

Available in 3.3 Volt for lower power systems

•

Readable Device ID

Selectable faster operating mode with no wait states

after a no-match

•

Validity bit setting accessible from the Status register

Single cycle reset for Segment Control register

5 Volt (A series) or 3.3 Volt (L series) operation

44-pin PLCC package

(Use functional compatible LANCAM B family for new designs)

(also available in Lead-Free package upon request)

DATA (64)

MUX

VCC

GND

DATA (16)

DQ (15—0)

(16)

TRANSLATE

802.3 / 802.5

DEMUX

DATA (64)

DATA (16)

COMPARAND

SOURCE AND

DESTINATION

SEGMENT

MASK 1

MASK 2

COMMANDS &

STATUS (16)

COUNTERS

/MA

/MM

INSTRUCTION (W/O)

ADDRESS

CAM ARRAY

CONTROL

NEXT FREE ADDRESS (R/O)

CONTROL

2^NWORDS

X 64 BITS

/CM

/RESET

SEGMENT CONTROL

PAGE ADDRESS (LOCAL)

DEVICE SELECT (GLOBAL)

STATUS (15-0) (R/O)

MATCH ADDR &

/MA FLAG

/EC

N+1

/FF

/FI

/MM, /FL

MATCH

AND

FLAG

STATUS (31-16) (R/O)

/MF

/MI

LOGIC

Figure 1: LANCAM B Family Block Diagram

MUSIC Semiconductors, the MUSIC logo, and the phrase "MUSIC Semiconductors" are

Registered trademarks of MUSIC Semiconductors. MUSIC is a trademark of

MUSIC Semiconductors.

April 18, 2005 Rev. 1

12 3 4 5 6 7...32

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