User's Manual

GE863-PRO
3
Hardware User Guide
1vv0300773a Rev. 0 - 24/01/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 37 of 64
Operating Range - Interface levels (CMOS 1.8V-ARM)
Level Min Max
Input high level 1.3V 2.1V
Input low level -0.3V 0.5V
Output high level 1.35V 1.9V
Output low level 0V 0.45V
Operating Range - Interface levels (CMOS VRTC)
Level Min Max
Input high level 1.3V 2.1V
Input low level -0.3V 0.5V
Output high level 1.3V 2.0V
Output low level 0V 0.5V
GSM GPIO Current characteristics
Level Typical
Output Current 1mA
Input Current 1uA
CMOS 3.1V Current characteristics
Level Typical
Max Output Current 16 mA
Input Current 1uA
CMOS 1.8V-A Current characteristics
Level Typical
Max Output Current 4 mA
Input Current 1uA