GENERAL DESCRIPTION
The MU9C2480A and MU9C2480L LANCAMs are 2048 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
➤ 2048 x 64-bit CMOS content-addressable memory (CAM)
➤ 16-bit I/O
➤ Fast 70 ns compare speed
➤ Dual configuration register set for rapid context switching
➤ Shiftable Comparand and mask registers assist in proximate matching algorithms
➤ 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
➤ 5 volt (2480A) or 3.3 volt (2480L) operation
APPLICATION BENEFITS
The 2048 x 64-bit LANCAM facilitates numerous operations:
➤ 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
➤ Expanded powerful instruction set for any list processing needs
➤ Fully compatible with all MUSIC LANCAM Series, cascadable to any practical length without performance penalties
➤ Full CAM features allow all operations mask, on a bit per bit basis