User's Manual

CE910-DUAL Hardware User Guide
1vv0301010 Rev .0 – 2012-07-10
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 46 of 63
10.1. Logic Level Specification
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 CE910-DUAL interface
circuits:
Absolute Maximum Ratings -Not Functional
Parameter Min Max
Input level on any digital pin (CMOS 1.8) with respect to ground
-0.3V 2.3V
Operating Range - Interface levels (1.8V CMOS)
Parameter Min Max
Input high level
1.5V 2.1V
Input low level
0.0V 0.35V
Output high level
1.35V 1.8V
Output low level
0.0V 0.45V
Current characteristics
Parameter Typical
Output Current
2mA
Input Current
30uA