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MU9C5480A-70DI Datasheet(PDF) 1 Page - MUSIC Semiconductors |
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MU9C5480A-70DI Datasheet(HTML) 1 Page - MUSIC Semiconductors |
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1 / 32 page  Data Sheet MUSIC Semiconductors, the MUSIC logo, and the phrase "MUSIC Semiconductors" are April 18, 2005 Rev. 1 Registered trademarks of MUSIC Semiconductors. MUSIC is a trademark of MUSIC Semiconductors. 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 (Use functional compatible LANCAM B family for new designs) 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) Figure 1: LANCAM B Family Block Diagram /EC DQ (15—0) (16) CAM ARRAY 2N WORDS X 64 BITS 2 N DATA (16) DATA (16) NEXT FREE ADDRESS (R/O) CONTROL SEGMENT CONTROL PAGE ADDRESS (LOCAL) DEVICE SELECT (GLOBAL) ADDRESS STATUS (31-16) (R/O) REGISTER SET 2 /MM, /FL DATA (16) DATA (64) DATA (64) /MA /MM N+1 16 CONTROL MUX VCC GND /FF /FI /MF /MI MATCH AND FLAG LOGIC /W /E /CM /RESET COMMANDS & STATUS (16) TRANSLATE 802.3 / 802.5 DEMUX INSTRUCTION (W/O) STATUS (15-0) (R/O) MATCH ADDR & /MA FLAG COMPARAND MASK 2 MASK 1 SOURCE AND DESTINATION SEGMENT COUNTERS LANCAM A/L series (not recommended for new designs) |
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