GENERAL DESCRIPTION

The LANCAM A/L series consists of various depths of 64-bit Content Addressable Memories (CAMs), with a 16-bit wide interface.

DISTINCTIVE CHARACTERISTICS

? High density CMOS Content Addressable Memory (CAM)

? Available in the following depths: 256 (3480), 512 (5480), 1K (1480), 2K (2480) and 4K (4480) words.

? 64-bit per word memory organization

? 16-bit I/O

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

? 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

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

? 44-pin PLCC package (also available in Lead-Free package upon request)

APPLICATION BENEFITS

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

? 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)

? Full CAM features allow all operations to be masked on a bit-by-bit basis

? Powerful 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

? Available in 3.3 Volt for lower power systems