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參數(shù)資料
| 型號： | IDT77V500S25PF |
| 廠商： | IDT, Integrated Device Technology Inc |
| 文件頁數(shù)： | 1/17頁 |
| 文件大小： | 0K |
| 描述： | IC SW MEMORY 8X8 1.2BGPS 100TQFP |
| 標(biāo)準(zhǔn)包裝： | 90 |
| 系列： | SwitchStar™ |
| 類型： | 集成式開關(guān)控制器 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 100-LQFP |
| 供應(yīng)商設(shè)備封裝： | 100-TQFP（14x14） |
| 包裝： | 托盤 |
| 其它名稱： | 77V500S25PF |
1 of 17
April 11, 2001
2001 Integrated Device Technology, Inc.
DSC 3607/5
SwitchStarTM ATM Cell Based
1.2Gbps non-blocking
Integrated Switch Controller
Features
x
Single chip controller for IDT77V400 Switching Memory
x
One IDT77V500 and one IDT77V400 form the core required
for a 1.2Gbps 8 x 8 port non-blocking switch
x
Supports up to 8192 Virtual Connections (VCs)
x
Per VC queuing for fairness, with four priorities per VC
available for each output port of the switch
x
Capable of supporting CBR, VBR, UBR, and ABR (EFCI)
service classes
x
Low power dissipation
– 430mW (typ.)
x
Optional header modification operation
x
Multicasting and Broadcasting capability
x
Provides congestion management support through EFCI,
CLP, and EPD functionality
x
System clock cycle times as fast as 25ns (40MHz)
x
Option available for resolving contention issues between
multiple IDT77V500 configurations
x
One IDT77V500 can manage up to eight IDT77V400's
without derating for larger switch configurations
x
Industrial temperature range (-40° C to +85° C) is available
x
Single +3.3V ± 300mV power supply
x
Available in a 100-pin Thin Plastic Quad Flat Pack (TQFP)
and 144-ball BGA
Description
The IDT77V500 ATM Cell Based Switch Controller, when paired with
the IDT77V400 Switching Memory, forms the core control logic and
switch fabric for a 1.2Gbps non-blocking ATM switch. The IDT77V500
manages all of the switch traffic moving through the IDT77V400,
commanding the storage of incoming ATM cells and interpreting and
modifying the cell header information as necessary for data flow through
the switch. It then uses the header information, including priority indica-
tors, to queue and direct the individual cells for transmission out the
appropriate output port of the IDT77V400.
IDT77V500
Typical 8 x 8 Switch Configuration using the IDT77V500 Switch Controller
SwitchStar and the IDT logo are registered trademarks of Integrated Device Technology, Inc.
8-bit Processor/
Call Setup
Manager
IDT77V500
Switch
Controller
IDT77V400
Switching
Memory
155Mbps
PHY
Port 0
Port 7
Control
Data
External Interface
for Global Setup
and Control
3607 drw 01
or IDT77V550
155Mbps
PHY
155Mbps
PHY
155Mbps
PHY
/
,
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