User's Manual

UL865-N3G Hardware User Guide
1VV0301177 Rev 2– 2015-04-20
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Reserved. Page 50 of 70
Mod. 0805 2011-07 Rev.2
13.1. GPIO Logic levels
Where not specifically stated, all the interface circuits work at 1.8V CMOS logic levels.
The following table shows the logic level specifications used in the UL865-N3G V2 interface
circuits:
Absolute Maximum Ratings -Not Functional
Parameter Min Max
Input level on any digital pin
(CMOS 1.8) when on
-0.3V +2.1V
Operating Range - Interface levels (1.8V CMOS)
Level Min Max
Input high level
1.5V 1.9V
Input low level
0V 0.35V
Output high level
1.6V 1.9V
Output low level
0V 0.2V
Current characteristics
Level Typical
Output Current 1mA
Input Current 1uA