參數(shù)資料
型號(hào): STPCC0166BTI3
廠商: STMICROELECTRONICS
元件分類: 外設(shè)及接口
英文描述: MULTIFUNCTION PERIPHERAL, PBGA388
封裝: PLASTIC, BGA-388
文件頁(yè)數(shù): 58/71頁(yè)
文件大?。?/td> 1238K
代理商: STPCC0166BTI3
Obsolete
Product(s)
- Obsolete
Product(s)
DESIGN GUIDELINES
Issue 2.4 - November 8, 2001
61/71
6.3.1 General recommendations
Some STPC Interfaces run at high speed and
need to be carefully routed or even shielded like:
1) Memory Interface
2) PCI bus
3) Graphics and video interfaces
4) 14 MHz oscillator stage
All clock signals have to be routed first and shield-
ed for speeds of 27MHz or higher. The high speed
signals follow the same constraints, as for the
memory and PCI control signals.
The next interfaces to be routed are Memory, PCI,
and Video/graphics.
All the analog noise-sensitive signals have to be
routed in a separate area and hence can be rout-
ed indepedently.
Figure 6-7. Shielding signals
ground ring
ground pad
shielded signal line
ground pad
shielded signal lines
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