MU9C4480B-90TBI中文资料MUSIC数据手册PDF规格书

GENERAL DESCRIPTION

The LANCAM 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)

• 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)

APPLICATION BENEFITS

• New 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