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參數(shù)資料
| 型號： | USS-344 |
| 英文描述： | USS-344 QuadraBus Four-Host PCI-to-USB OpenHCL Host Controller |
| 中文描述： | 號，344 QuadraBus四主機的PCI到USB主機控制器OpenHCL |
| 文件頁數(shù)： | 52/54頁 |
| 文件大?。?/td> | 850K |
| 代理商： | USS-344 |
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52
Agere Systems Inc.
Advance Data Sheet, Rev. 9
June 2001
Four-Host PCI-to-USB OpenHCI Host Controller
USS-344
QuadraBus
Electrical Characteristics
(continued)
USB Electrical Characteristics
Table 142. Full-Speed Source USB Electrical Characteristics
1. All voltages measured from the local ground potential, unless otherwise specified.
2. All timings use a capacitive load (CL) to ground of 50 pF, unless otherwise specified.
3. Full-speed timings have a 1.5 k
pull-up to 2.8 V on the D+ data line.
4. Measured from 10% to 90% of the data signal.
5. The rising and falling edges should be smoothly transitioning (monotonic).
Table 143. Low-Speed Source USB Electrical Characteristics
1. Measured from 10% to 90% of the data signal.
2. The rising and falling edges should be smoothly transitioning (monotonic).
Table 144. CLK48 Clock Specification
Parameter
Symbol
Conditions
1, 2, 3
Min
Max
Unit
Driver Characteristics
Transition Time
4, 5
:
Rise Time
Fall Time
Rise/Fall Time Matching
Output Signal Crossover Voltage
Driver Output Resistance
Data Source Timings
Full-speed Data Rate
t
R
t
F
CL = 50 pF
CL = 50 pF
(TR/TF)
—
Steady-State Drive
4
4
90
1.3
28
20
20
110
2.0
43
ns
ns
%
V
t
RFM
V
CRS
Z
DRV
t
DRATE
Average Bit Rate
(12 Mbits/s
±
0.25%)
1.0 ms
±
0.05%
11.97
12.03
Mbits/s
Frame Interval
t
FRAME
0.9995
1.0005
ms
Parameter
Symbol
Conditions
Min
Max
Unit
Driver Characteristics
Transition Time
1, 2
:
Rise Time
Fall Time
t
R
t
F
CL = 50 pF
CL = 350 pF
CL = 50 pF
CL = 350 pF
(TR/TF)
—
75
—
75
—
80
1.3
—
300
—
300
120
2.0
ns
ns
ns
ns
%
V
Rise/Fall Time Matching
Output Signal Crossover Voltage
Data Source Timings
Low-speed Data Rate
t
RFM
V
CRS
t
DRATE
Average Bit Rate
(1.5 Mbits/s
±
1.5%)
1.4775
1.5225
Mbits/s
Parameter
Symbol
t
CYC
t
HIGH
t
LOW
Min
Max
Unit
ns
ns
ns
CLK Cycle Time
CLK High Time
CLK Low Time
20.8
0.01%
8.32
8.32
20.8 + 0.01%
12.48
12.48
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| USS-344QUADRABUS | 制造商:AGERE 制造商全稱:AGERE 功能描述:Four-Host PCI-to-USB OpenHCI Host Controller |
| USS344S-DB | 制造商:AGERE 制造商全稱:AGERE 功能描述:USS-344 QuadraBus Four-Host PCI-to-USB OpenHCL Host Controller |
| USS-4(1m) | 制造商:Ubon 功能描述:1m 1 to 0.4mm D Bulk |
| USS4350 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:50V, 5A NPN LOW VCE(SAT) TRANSISTOR |
| USS4350G-AA3-R | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:50V, 5A NPN LOW VCE(SAT) TRANSISTOR |
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