4112221
Rev 7.2
June 19, 2013
30
User Guide
Interfaces
With
Vref
connected to 2.8V, both GPIO21 and GPIO25 (GPIO35 for FX100) may be interfaced with a
component that complies with the following levels.
Table 9.
GPIO Pin Operating Conditions when Vref is at 2.8V
Parameter
Mininum
Typical
Maximum
Condition
V
IL
0.84V
Please refer to Figure 9.
V
IH
1.96V
Please refer to Figure 10.
V
OL
0.4*
Please refer to Figure 11.
V
OH
2.8*
FX Series Zout = 100K Pull-up to
Vref
, please
refer to Figure 12.
*
Value without external load.
Figure 9.
Equivalent Circuit of V
IL
,
Vref
= 2.8V
Figure 10. Equivalent Circuit of V
IH
,
Vref
= 2.8V
Figure 11. Equivalent Circuit of V
OL
,
Vref
= 2.8V
Содержание AirLink FX100
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