MU9C4480L-90DC中文资料MUSIC数据手册PDF规格书

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