User's Manual

GE864
GE864GE864
GE864-
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-QUAD Automotive V2 Hardware User Guide
QUAD Automotive V2 Hardware User GuideQUAD Automotive V2 Hardware User Guide
QUAD Automotive V2 Hardware User Guide
1vv0300840 Rev.3 2010-04-08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 34 of 71
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 Telit
Telit Telit
Telit GE864
GE864GE864
GE864-
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-QUAD
QUAD QUAD
QUAD
Automotive V2
Automotive V2Automotive V2
Automotive V2 interface circuits:
Absolute Maximum Ratings
Absolute Maximum Ratings Absolute Maximum Ratings
Absolute Maximum Ratings
Parameter
ParameterParameter
Parameter Min
MinMin
Min Max
MaxMax
Max
Input level on any
digital pin when on
-0.3V +3.1V
Input voltage on
analog pins when on
-0.3V +3.0 V
Operating Range
Operating Range Operating Range
Operating Range -
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- Interface level
Interface level Interface level
Interface levels (2.8V CMOS)
s (2.8V CMOS)s (2.8V CMOS)
s (2.8V CMOS)
Level
LevelLevel
Level Min
MinMin
Min Max
MaxMax
Max
Input high level 2.1V 3.1V
Input low level 0V 0.5V
Output high level 2.2V 3.0V
Output low level 0V 0.35V
For 1,8V signals:
Operating Range
Operating Range Operating Range
Operating Range -
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- Interface levels (
Interface levels ( Interface levels (
Interface levels (1
11
1.
..
.8
88
8V CMOS)
V CMOS)V CMOS)
V CMOS)
Level
LevelLevel
Level Min
MinMin
Min Max
MaxMax
Max
Input high level 1.6V 2.2V
Input low level 0V 0.4V
Output high level 1,65V 2.2V
Output low level 0V 0.35V
Current characteristics
Current characteristics Current characteristics
Current characteristics
Level
LevelLevel
Level Typical
TypicalTypical
Typical
Output Current 1mA
Input Current 1uA