AU9254A21 View Datasheet(PDF) - Unspecified
Part Name
Description
Manufacturer
AU9254A21 Datasheet PDF : 32 Pages
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16 SUSPEND
17 DP2_OVRCUR
18 NC
19 AGND/GNDO
20 XTAL_1
21 XTAL_2
22 DP3_PWRUP
23 DP4_OVRCUR
24 DP3_OVRCUR
25 USB_DM
26 USB_DP
27 USB1_DM
28 USB1_DP
Output
Input
Device is in suspended state: Active high.
Downstream port 2 over-current indicator. Active
low.
Power
+5 V power supply.
Input
Crystal in.
Output
Crystal out.
Output
Downstream port 3 power switch control. Active
low.
Input
Downstream port 4 over-current indicator. Active
low.
Input
Downstream port 3 over-current indicator. Active
low.
Input/Output USB D- for upstream.
Input/Output USB D+ for upstream port. Need external 1.5KΩ
pull-up to 3.3V.
Input/Output USB D- for downstream port 1; add 15KΩ pull-down
to ground.
Input/Output USB D+ for downstream port 1; add 15KΩ pull-
down to ground.
SYSTEM ARCHITECTURE AND REFERENCE DESIGN
7
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