User's Manual

Silicon Laboratories Finland Oy
Page 13 of 45
3.3.2 Input/Output Terminal Characteristics (USB)
USB Terminals
Min
Typ
Max
Unit
VDD_USB for correct USB operation
3.1
3.6
V
Input Threshold
V
IL
input logic level log
-
-
0.3VDD_USB
V
V
IH
input logic level high
0.7VDD_USB
-
-
V
3.4 PIO Current Sink and Source Capability
Figure 2: WT41u PIO Current Drive Capability