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IDT77V550S25DT8 PDF预览

IDT77V550S25DT8

更新时间： 2024-11-11 20:09:47
品牌 Logo 应用领域
艾迪悌 - IDT ATM异步传输模式电信开关电信集成电路
页数 文件大小 规格书
19页 126K
描述
ATM Switching Circuit, 1-Func, PQFP80, TQFP-80

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中文翻译

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IDT77V550S25DT8 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Active零件包装代码：QFP
包装说明：LFQFP, QFP80,.55SQ,20针数：80
Reach Compliance Code：not_compliantHTS代码：8542.39.00.01
风险等级：5.25应用程序：ATM
JESD-30 代码：S-PQFP-G80JESD-609代码：e0
长度：12 mm功能数量：1
端子数量：80最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：LFQFP封装等效代码：QFP80,.55SQ,20
封装形状：SQUARE封装形式：FLATPACK, LOW PROFILE, FINE PITCH
峰值回流温度（摄氏度）：225电源：3.3 V
认证状态：Not Qualified座面最大高度：1.7 mm
子类别：ATM/SONET/SDH ICs最大压摆率：0.16 mA
标称供电电压：3.3 V表面贴装：YES
电信集成电路类型：ATM/SONET/SDH SWITCHING CIRCUIT温度等级：COMMERCIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：GULL WING
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：30宽度：12 mm
Base Number Matches：1

IDT77V550S25DT8 数据手册

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TM  
IDT77V550  
SwitchStar  
Switch Manager  
IDT77V550 is located on the IDT77V400 port to receive both signalling  
cells and standard traffic cells. The Switch Manager does not have to be  
connected to a Switching Memory port if it is only receiving the signalling  
cells.  
Features List  
u
Interprets switch command cells from external work station  
and loads the command into the IDT77V500 Switch  
Controller  
u
u
u
The Switch Manager has two cell streams which flow in opposite  
directions, and can both interpret an incoming cell and generate control  
cells as necessary. Figure 2 illustrates the basic block configuration of  
the Switch Manager. The Data Path Interface (DPI) is used on both the  
cell input and output ports of the IDT77V550. DPI is utilized on the  
IDT77V400 to provide both reduced pin count per port and to offer  
configuration flexibility.  
Utilizes in-stream (in-band) signalling technique via the cell  
stream into the Switching Memory  
Can generate control cells to be sent back to the external  
workstation  
Executes three types of commands:  
–
–
–
Writing data to Switch Controller  
Reading data from Switch Controller  
Reset operations  
The IDT77V550 is capable of executing four basic types of  
commands in the system:  
u
u
Single +3.3V ± 0.3V power supply  
u
Industrial Temperature (-40°C to 85°C) is available.  
Writing data to the Switch Controller  
u
Reading data from the Switch Controller  
u
Description  
Resetting the switch components  
u
Reading Switch Manager version information  
The IDT77V550 Switch Manager is a device developed to provide a  
simple method of communication between an external workstation/  
processor and the IDT77V500 Switch Controller. An In-Band signalling  
technique is utilized to examine incoming ATM cells, determining if the  
cell is a Command Cell for the Switch Controller, and loads the  
command if appropriate. In the typical configuration (Figure 1), the  
When writing information to the Switch Controller, the IDT77V550 will  
store information needed to execute the command (up to 32 bytes) in  
internal memory and perform the command across the Switch Controller  
Manager bus. Likewise, for a read operation the information is received  
from the Switch Controller, stored internally by the IDT77V550, and then  
Block Diagram  
Switching Memory  
Line Cards  
DPI Receive  
,
DPI Transmit  
•
•
•
Switch Manager  
DPI Receive  
DPI Transmit  
DPI Receive  
IDT77V550  
DPI Transmit  
Control Bus  
Switch Controller  
4523 drw 01  
Figure 1 IDT77V550 Application with IDT77V400 Switching Memory and IDT77V500 Switch Controller  
1 of 19  
June 22, 2001  
DSC 5917  
ã
2000 Integrated Device Technology, Inc.  
1234567...19

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