Datasheet

1051
SAM9263 [DATASHEET]
Atmel-6249N-ATARM-SAM9263-Datasheet_14-Mar-16
46.11.4 UDP and UHP Switching Characteristics
Figure 46-16. USB Data Signal Timing Diagram
Table 46-41. USB Data Signal Rise and Fall Time Characteristics (Low Speed)
Symbol Parameter Conditions Min Typ Max Unit
t
r
Transition Rise Time C
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= 400 pF 75 300 ns
t
f
Transition Fall Time C
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= 400 pF 75 300 ns
t
rfm
Rise/Fall time Matching C
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= 400 pF 80 125 %
Table 46-42. USB Data Signal Rise and Fall Time Characteristics (Full Speed)
Symbol Parameter Conditions Min Typ Max Unit
t
r
Transition Rise Time C
LOAD
= 50 pF 4 20 ns
t
f
Transition Fall Time C
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= 50 pF 4 20 ns
t
rfm
Rise/Fall time Matching 90 111.11 %
10%
10%
90%
V
CRS
t
r
t
f
Differential
Data Lines
Rise Time Fall Time
f
osc
= 6 MHz/750 kHz
R
EXT
= 27 ohms
C
LOAD
Buffer