mu9c4480b-90tbi Music Semiconductors, Inc., mu9c4480b-90tbi Datasheet

mu9c4480b-90tbi

Manufacturer Part Number

mu9c4480b-90tbi

Description

Lancam B Family

Manufacturer

Music Semiconductors, Inc.

Datasheet

1.MU9C4480B-90TBI.pdf (32 pages)

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APPLICATION BENEFITS

•

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

Registered trademarks of MUSIC Semiconductors. MUSIC is a trademark of

MUSIC Semiconductors.

/RESET

Low-cost LANCAM family in a space-saving LQFP

package

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

Full CAM features allow all operations to be masked

on a bit-by-bit basis

Powerful, LANCAM A/L compatible instruction set

for any list processing need

Shiftable Comparand and Mask registers assist in

proximate matching algorithms

Cascadable to any practical length with no

performance penalties

Industrial temperature grades for harsh environments

Dual footprint connections to conserve board space

3.3 Volt for lower power systems

/EC

DQ (15—0)

/CM

CONTROL

(16)

COMMANDS &

STATUS (16)

NEXT FREE ADDRESS (R/O)

DEVICE SELECT (GLOBAL)

PAGE ADDRESS (LOCAL)

LANCAM B Family

DATA (16)

STATUS (31-16) (R/O)

SEGMENT CONTROL

INSTRUCTION (W/O)

STATUS (15-0) (R/O)

Figure 1: LANCAM B Family Block Diagram

CONTROL

ADDRESS

DATA (16)

TRANSLATE

802.3 / 802.5

MUX

MATCH ADDR &

/MA FLAG

DATA (16)

/MM, /FL

SOURCE AND

DESTINATION

COUNTERS

SEGMENT

DISTINCTIVE CHARACTERISTICS

•

DATA (64)

DEMUX

N+1

High density CMOS Content Addressable Memory

1K (1480B), 2K (2480B) , 4K (4480B), 8K (8480B)

words

64-bit per word memory organization

16-bit I/O

Fast 50 ns compare speed

Dual configuration register set for rapid context

switching

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

partitioning

/MA and /MM output flags to enable faster system

performance

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

3.3 Volt operation

44- and 64-pin LQFP package

(also available in Lead-Free package)

DATA (64)

COMPARAND

CAM ARRAY

X 64 BITS

MASK 1

MASK 2

WORDS

VCC

GND

February 27, 2008 Rev. 5.2

MATCH

LOGIC

FLAG

AND

Data Sheet

/MA

/MM

/FF

/FI

/MF

/MI

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