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参数资料
| 型号： | MC141555P1 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 总线控制器 |
| 英文描述： | UNIVERSAL SERIAL BUS CONTROLLER, PDIP28 |
| 封装： | PLASTIC, DIP-28 |
| 文件页数： | 12/16页 |
| 文件大小： | 280K |
| 代理商： | MC141555P1 |
MC141555
5
MOTOROLA
LOW SPEED OPERATING HUB ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Conditions
Min
Max
Unit
tLHDD
Hub Differential Data Delay
Figure 5, Figure 6
—
300
ns
tLDHJ1
tLDHJ2
Hub Differential Driver Jitter (including cable)
Downstream:
To Next Transition
For Paired Transitions
Upstream:
To Next Transition
For Paired Transitions
—
-45
-15
-45
45
15
45
ns
tSOP
Data Bit Width Distortion After SOP
—
-60
45
ns
tLHESK
Hub EOP Output Width Skew
—
-300
300
ns
FULL SPEED OPERATING HUB ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Conditions
Min
Max
Unit
tHDD1
tHDD2
Hub Differential Data Delay
(with cable)
(without cable)
Figure 5, Figure 6
—
70
40
ns
tHDJ1
tHDJ2
Hub Differential Driver Jitter (including cable)
To Next Transition
For Paired Transitions
—
-3
-1
3
1
ns
tSOP
Data Bit Width Distortion After SOP
—
-5
3
ns
tHESK
Hub EOP Output Width Skew
—
-15
15
ns
50% Point of
Initial Swing
Upstream
End of
Cable
Vss
Downstream
Port
Hub Delay
Downstream
tHDD1
Crossover
Point
Vss
Hub Delay
Downstream
tHDD1, tHDD2
Crossover
Point
Upstream
End of
Cable
Vss
Downstream
Port
Crossover
Point
Figure 5. Downstream Hub Delay
Figure 6. Upstream Hub Delay
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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