GENERAL DESCRIPTION

The MU9C1480A and MU9C1480L LANCAMs are 1024 x 64-bit content-addressable memories (CAMs), with a 16-bit wide interface. They are pin compatible with all devices in the MUSIC LANCAM family.

DISTINCTIVE CHARACTERISTICS

➤ 1024 x 64-bit CMOS content-addressable memory (CAM)

➤ 16-bit I/O

➤ Fast 90 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

➤ 44-Pin PLCC package / 44-Pin TQFP package

➤ 5 Volt (1480A) or 3.3 Volt (1480L) operation

APPLICATION BENEFITS

The 1024 x 64-bit LANCAM facilitates numerous operations:

➤ New package saves space

➤ New speed grade allows processing of both DA and SA within 560 ns, equivalent to 111, 10 Base-T or 11, 100 Base-T Ethernet ports

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

➤ Expanded powerful instruction set for any list processing needs

➤ Shiftable Comparand and mask registers assist in proximate matching algorithms

➤ Fully compatible with all MUSIC LANCAM series, cascadable to any practical length without performance penalties