7.Electrical Interface
© 2023 China Daheng Group, Inc. Beijing Image Vision Technology Branch 87
Delay time (td): the time required from 50% rising of OUTPUT1 to the decrease to 90% of the
maximum value of LINE1+
Falling time (tf): the time taken for the amplitude of LINE1+ to decrease from 90% to 10% of the
maximum value
Storage time (ts): the time required from 50% falling of OUTPUT1 to the rise to 10% of the maximum
value of LINE1+
Rising time (tr): the time for the response of LINE1+ to rise from 10% to 90% of its final value
7.3.2.3.
GPIO 2/3 (Bidirectional) Circuit
1
2
8
7
6
4
5
3
3.3V
Line2
Line3
INPUT2
INPUT3
OUTPUT2
OUTPUT3
PTC
PTC
Figure 7-11 Line2/3 (bidirectional) circuit (MER2/ME2P)
1.8V
INPUT2
OUTPUT2
33
Ω
PTC
8
5
1
4
3
7
2
6
Figure 7-12 Line2 (bidirectional) circuit (ME2L)