Rev 1.0
1/27/14
18
18
Reference Guide
Interfaces
Figure 7.
Equivalent Circuit of V
IH
,
Vref
= 2.8V
Figure 8.
Equivalent Circuit of V
OL
,
Vref
= 2.8V
Figure 9.
Equivalent Circuit of V
OH
,
Vref
= 2.8V
With
Vref
> 2.8V, both GPIO35 and GPIO25 may be interfaced with a component
that complies with the following levels.
Table 5.
GPIO Pin Operating Conditions when Vref > 2.8V
Parameter
Min
Typ
Max
Condition
V
IL
0.84V
Please refer to Figure 10.
V
IH
1.96V
Please refer to Figure 11.
V
OL
*
058
.
0
110
+
Vref
Please refer to Figure 12.
V
OH
Vref
*
modem Zout = 100K Pull-up to
Vref
, please
refer to Figure 13.