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75N42102 Datasheet(PDF) 1 Page - Integrated Device Technology

Part # 75N42102
Description  NETWORK SEARCH ENGINE 32K x 72 Entries
Download  3 Pages
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

75N42102 Datasheet(HTML) 1 Page - Integrated Device Technology

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APRIL 2004
DSC-6457/00
1
 2004 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
NETWORK SEARCH ENGINE
32K x 72 Entries
Datasheet
Brief
75N42102
Device Description
IDT provides proven, industry-leading network search engines
(NSEs) that enable and accelerate the intelligent processing of network
services in communications equipment. As a part of the complete IDT
classificationsubsystemthatincludescontentinspectionengines,theIDT
family of NSEs delivers high-performance, feature-rich, easy-to-use,
integrated search accelerators.
TheIDT 75N42102NSEisahighperformance,lowcost, full-ternary
32K x 72 entry device. Each entry location in the NSE has both a Data
entry and an associated Mask entry. The NSE devices integrate content
addressable memory (CAM) technology with high-performance logic.
The device can perform Lookup operations plus Read and Write
maintenanceoperations.
The IDT 75N42102 NSE device has a bi-directional bus that is a
multiplexed address and data bus that can support up to 200 million
sustained searches per second. This device offers the ability to simulta-
neouslysearchinmutuallyexclusivedatabasessubstantiallyincreasing
the NSE search rate. This device can be configured to enable multiple
width lookups from 40 to 288 bits wide. The IDT 75N42102 requires a
1.5-volt VDD1 supply and a 2.5-volt VDD2 supply.
The IDT 75N42102 NSE utilizes the latest high-performance 1.5V
CMOS processing technology and is packaged in a JEDEC Standard,
thermally enhanced, 304 pin low profile Ball Grid Array.
To request the full IDT75N42102 datasheet, please contact your local
IDT Sales Representative or call 1-800-345-7015
6457 drw02
Optional
Figure 1.0 ASIC / Compatible NSE / SRAM configuration
ASIC
or
FPGA
ZBT
or
Sync SRAM
IDT 75N42102
Network Search
Engine
Configuration Registers
and
Ram Control Circuits
CLOCK
CCLK
÷2
PHASE
SRAM CONTROL
P
R
I
O
R
I
T
Y
E
N
C
O
D
E
R
S
I
Z
E
L
O
G
I
C
D
E
C
O
D
E
Address
MATCHOUT
REQSTB
R/W
6457 drw 01
RESET
Command
Bus
Request
Data
Bus
Index
Bus
NSE
REQUEST
BUS
NSE
RESPONSE
BUS
MATCHIN
CONFIGIN
ASIC FEEDBACK
Bypass
DATA
ARRAY
Instruction
Global Mask Registers
Result Register
CONFIGOUT
Block Diagram
System Configurations
The IDT NSEs are designed to fulfill the needs of various types of
networking systems. In solutions requiring data searching such as
routers, a system configuration as shown in Figure 1.0 may be realized.
In this configuration, the NSE interfaces directly to an ASIC/ FPGA for
lookups and routes an Index to an associated SRAM device, which
supplies the next hop address via an SRAM Data Bus to the ASIC. The
NSE provides the required control signals to directly hookup to ZBT™
or Synchronous Pipeline Burst SRAM. Lookup results can also be fed
directlybacktotheASIC/FPGAwithouttheuseofexternalSRAM.Control
of the associated handshake signals is provided by all NSEs to adapt to
eitherconfiguration.


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