Datasheet
Brief
75P52100
NETWORK SEARCH ENGINE
64K x 72 Entries
To request the full IDT75P52100 datasheet, please contact your local
IDT Sales Representative or call 1-800-345-7015
DeviceDescription
BlockDiagram
IDT provides proven, industry-leading network search engines
(NSEs)andacomprehensivesuiteofsoftwarethatenableandaccelerate
theintelligentprocessingofnetworkservicesincommunicationsequip-
ment.AsapartofthecompleteIDTclassificationsubsystemthatincludes
content inspection engines, the IDT family of NSEs delivers high-
performance,feature-rich,easy-to-use,integratedsearchaccelerators.
TheIDT 75P52100NSEisahighperformancepipelinedlow-power,
synchronous full-ternary 64K x 72 entry device. Each entry location in
theNSEhasbothaDataentryandanassociatedMaskentry. TheNSE
devicesintegratecontentaddressablememory(CAM)technologywith
high-performancelogic. ThedevicecanperformLookupandLearnNSE
operationsplusRead,Write,BurstWrite,andDualWritemaintenance
operations.
The IDT 75P52100 NSE device has a bi-directional bus that is a
multiplexedaddressanddatabusthatcansupport100millionsustained
searchespersecond. Thisdeviceprovidesarraysegmentswhichcan
beconfiguredtoenablemultiplewidthlookupsfrom36to576bitswide.
TheIDT75P52100requiresa1.8-voltVDDsupply,auserselectable1.8
or2.5-voltVDDQ supply,anda2.5-voltVBIAS supply. This NSEdevice
provides the user with flexibility and control in determining the device
power. Only the array segments that will be used for a specific NSE
operation are powered up while the unused segments are not.
The IDT 75P52100 utilizes IDT’s latest high-performance 1.8V
CMOSprocessingtechnologyandis packagedinaJEDECStandard,
thermallyenhanced, lowprofile BallGridArray. The options include a
304 BGA, satisfying smaller footprint requirements and a 372 BGA
package that is compatible with IDT's 32K x 72 Entry (75P42100) and
128K x 72 Entry (75P62100) NSE devices.
LAST NSE
Configuration Registers
and
SRAM CONTROL
ASIC FEEDBACK
LAST SRAM
Ram Control Circuits
CLOCK
÷
2
CCLK
PHASE
P
R
I
Counter
BURST
RESET
S
I
O
R
I
Z
E
Index
Bus
ARRAY
T
Y
REQSTB
R/W
L
O
G
I
NSE
RESPONSE
BUS
Instruction
Command
Bus
E
N
C
O
D
E
R
NSE
REQUEST
BUS
C
D
E
C
O
D
E
Request
Data
Address
Bypass
DATA
Bus
Comparand Registers
Global Mask Registers
Result Register
MMOUT
MATCHOUT
5333 drw 01
SystemConfigurations
TheIDTNSEs aredesignedtofulfilltheneeds ofvarious types of
networking systems. In solutions requiring data searching such as
routers,asystemconfigurationasshowninFigure1.0mayberealized.
Maximum flexibility is provided by allowing one board design to be
populatedtodayusingeithertheIDT75P42100or75P52100NSEsand
laterupgradedtouseIDT’s75K62100NSE.ApplicationsnoteAN-279
discusseshowtoaccommodateoneboarddesignforanyoftheseNSEs.
Inthiscompatibleconfiguration,theNSEinterfacesdirectlytoan
ASIC/FPGAforlookups androutes anIndextoanassociatedSRAM
device,whichsuppliesthenexthopaddressviaanSRAMDataBusto
the ASIC. The NSE provides the required control signals to directly
hookuptoZBT™orSynchronousPipelineBurstSRAM. Lookupresults
canalsobefeddirectlybacktotheASIC/FPGAwithouttheuseofexternal
SRAM.Controloftheassociatedhandshakesignalsisprovidedbyall
NSEstoadapttoeitherconfiguration.
Figure 1.0 ASIC / Compatible NSE / SRAM configuration
Optional
IDT
75P42100
ASIC
ZBT
or
or
75P52100
or
or
SyncSRAM
FPGA
75K62100
Network Search Engine
5333 drw02
JUNE 2003
1
DSC-5333/03
2003 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
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