參數(shù)資料
型號(hào): USS344S-DB
英文描述: CONNECTOR, MCX, FEMALE, STRAIGHT, TH
中文描述: 號(hào),344 QuadraBus四主機(jī)的PCI到USB主機(jī)控制器OpenHCL
文件頁數(shù): 49/54頁
文件大小: 850K
代理商: USS344S-DB
Agere Systems Inc.
49
Advance Data Sheet, Rev. 9
June 2001
Four-Host PCI-to-USB OpenHCI Host Controller
USS-344
QuadraBus
Electrical Characteristics
Table 139. Power Dissipation
PCI Electrical Characteristics
PCI Timing Specifications
The clock waveform must be delivered to each PCI component in the system. In the case of expansion boards,
compliance with the clock specification is measured at the expansion board component, not at the connector slot.
Figure 9 shows the clock waveform and required measurement points for both 5 V and 3.3 V signaling environ-
ments. Table 140 summarizes the clock specifications.
5-6474
Figure 9. Clock Waveforms
Parameter
Symbol
Min
Typ
Max
Unit
Power Dissipation
P
D
283
345
410
mW
5 V CLOCK
2.4 V
0.4 V
2 Vp-p
(MINIMUM)
2.0 V
1.5 V
0.5 V
3.3 V CLOCK
0.6V
CC
0.2V
CC
0.4V
CC
Vp-p
(MINIMUM)
0.5V
CC
0.4V
CC
0.3V
CC
t
HIGH
t
LOW
t
CYC
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