User's Manual

8. Logic level specifications
Where not specifically stated, all the interface circuits work at 2.8V CMOS logic levels. The
following table shows the logic level specifications used in the GE865 interface circuits:
Absolute Maximum Ratings -Not Functional
Parameter
Min
Max
Input level on any digital pin
(CMOS 2.8) when on
-0.3V
+3.1V
Input level on any digital pin
(CMOS 1.8) when on
-0.3V
+2.1V
Input voltage on analog pins when
on
-0.3V
+3.0 V
Operating Range - Interface levels (2.8V CMOS)
Level
Min
Max
Input high level
2.1V
3.1V
Input low level
0V
0.5V
Output high level
2.2V
3.1V
Output low level
0V
0.35V
For 1.8V signals:
Operating Range - Interface levels (1.8V CMOS)
Level
Min
Max
Input high level
1.6V
2.0V
Input low level
0V
0.4V
Output high level
1,65V
2.0V
Output low level
0V
0.35V
Current characteristics
Level
Typical
Output Current
1mA
Input Current
1uA