Telit Wireless Solutions HE910, Hardware User'S Manual, Page: 68 / 111

HE910 Hardware User Guide
1VV0300925 Rev. 32 Page 68 of 111 2019-11-25
8. LOGIC LEVEL SPECIFICATIONS
The following table shows the logic level specifications used in the HE910 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 2.1V
Input level on any digital pin (CMOS 1.2) with respect to
ground -0.3V 1.4V
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
Operating Range - Interface levels (1.2V CMOS)
Level Min Max
Input high level 0.9V 1.3V
Input low level 0V 0.3V
Output high level 1V 1.3V
Output low level 0V 0.1V