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4 Application
4.1 Examples
TUSB3210
P3.2
P3.3
P3.4
P3.5
V
CC
C3
R1
R2
R3
R5
V
CC
EPROM
V
CC
V
CC
1.8VDD
VREN
SUSP
C4
C5
X1 X2
SCL
SDA
TUSB3210
C2
VR
TPS76333
C1
5 V
3.3 V
TUSB3210
Universal Serial Bus
General-Purpose Device Controller
SLLS466F – FEBRUARY 2001 – REVISED AUGUST 2007
Figure 4-1 illustrates the port-3 pins that are assigned to drive the four example LEDs. For the connection
example shown, P3[5:2] can sink up to 8 mA each (open-drain outputs). Figure 4-2 illustrates the partial
connection bus power mode. Figure 4-3 shows the USB upstream connection, and Figure 4-4 illustrates
the downstream connection (only one port shown).
Figure 4-1. Example LED Connection
Figure 4-2. Partial Connection Bus Power Mode
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