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MU9C1480A-50DC

更新时间： 2024-11-27 03:24:43
品牌 Logo 应用领域
MUSIC 局域网
页数 文件大小 规格书
32页 332K
描述
LANCAM A/L series

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中文翻译

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MU9C1480A-50DC 数据手册

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Data Sheet  
LANCAM A/L series (not recommended for new designs)  
APPLICATION BENEFITS  
DISTINCTIVE CHARACTERISTICS  
The 256x64 to 4Kx64 LANCAM A/L series facilitate  
numerous operations:  
•
High density CMOS Content Addressable Memory  
(CAM)  
•
Available in the following depths: 256 (3480), 512  
(5480), 1K (1480), 2K (2480) and 4K (4480) words.  
•
•
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)  
•
•
•
•
64-bit per word memory organization  
16-bit I/O  
Full CAM features allow all operations to be masked  
on a bit-by-bit basis  
Fast 50 ns compare speed (1480A and 2480A)  
•
•
Powerful instruction set for any list processing need  
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  
•
Cascadable to any practical length with no  
performance penalties  
/MA and /MM output flags to enable faster system  
performance  
•
•
Industrial temperature grades for harsh environments  
Available in 3.3 Volt for lower power systems  
•
•
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  
(Use functional compatible LANCAM B family for new designs)  
(also available in Lead-Free package upon request)  
DATA (64)  
MUX  
VCC  
GND  
DATA (16)  
DQ (15—0)  
(16)  
TRANSLATE  
802.3 / 802.5  
DEMUX  
DATA (64)  
DATA (16)  
DATA (16)  
COMPARAND  
SOURCE AND  
DESTINATION  
SEGMENT  
MASK 1  
MASK 2  
COMMANDS &  
STATUS (16)  
COUNTERS  
/E  
/W  
/MA  
/MM  
INSTRUCTION (W/O)  
ADDRESS  
CAM ARRAY  
N
CONTROL  
NEXT FREE ADDRESS (R/O)  
CONTROL  
2N WORDS  
X 64 BITS  
/CM  
2
/RESET  
SEGMENT CONTROL  
PAGE ADDRESS (LOCAL)  
DEVICE SELECT (GLOBAL)  
STATUS (15-0) (R/O)  
16  
MATCH ADDR &  
/MA FLAG  
/EC  
N+1  
2
/FF  
/FI  
/MM, /FL  
MATCH  
AND  
FLAG  
STATUS (31-16) (R/O)  
REGISTER SET  
/MF  
/MI  
LOGIC  
Figure 1: LANCAM B Family Block Diagram  
MUSIC Semiconductors, the MUSIC logo, and the phrase "MUSIC Semiconductors" are  
Registered trademarks of MUSIC Semiconductors. MUSIC is a trademark of  
MUSIC Semiconductors.  
April 18, 2005 Rev. 1  
1234567...32

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