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USB3250 Fiches technique(PDF) 38 Page - Microchip Technology

No de pièce USB3250
Description  Hi-Speed USB Device Transceiver with UTMI Interface
PDF  46 Pages
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Fabricant  MICROCHIP [Microchip Technology]
Site Internet  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB3250 Fiches technique(HTML) 38 Page - Microchip Technology

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USB3250
DS00002142A-page 38
2013 - 2016 Microchip Technology Inc.
8.14
Application Diagram
The bypass capacitors shown Figure 8-9 for the voltage regulator are typical values. The actual values will be dictated
by the regulator used in the end application. Please refer to the layout application note for recommendations regarding
critical component placement.
FIGURE 8-8:
DEVICE ATTACH BEHAVIOR
TABLE 8-10:
ATTACH AND RESET TIMING VALUES
Timing Parameter
Description
Value
T0
Vbus Valid.
0 (reference)
T1
Maximum time from Vbus valid to when the device
must signal attach.
T0 + 100ms < T1
T2 (HS Reset T0)
Debounce interval. The device now enters the HS
Detection Handshake protocol.
T1 + 100ms < T2
Device Reset
Idle (FS 'J')
XCVRSELECT
DP/DM
TERMSELECT
T2
SE0
T0
time
HS Detection
Handshake
V
BUS
T1



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