This kind of pins are digital inputs (DI)
This kind of pins have a pull-down resistor to ground
Electrical characteristics
|
Symbol |
Parameter |
Conditions |
Min |
Max |
Units |
|
RI |
Input Resistance |
Input high; Referenced to GND (Note 3) |
11,5 7,5 |
12,5 |
kΩ |
|
Input Low; Referenced to 1,5 V |
7,5 |
8 |
kΩ |
||
|
VI-level |
Input voltage level |
Unconnected pin |
typ. 1,5 |
V |
|
|
VIH |
Input High Voltage |
Overload conditions (Note 1) |
4,6 |
33 |
V |
|
VIL |
Input Low Voltage |
|
-0,5 |
4 |
V |
|
fI |
Input Frequency |
(Note 2, 4) |
|
1/ 2tC |
kHz |
|
CI |
Input Capacitance |
|
typ. 47 |
nF |
|
Note 1: Exceeding the max value might cause damage to input.
Note 2: tC denotes the software cycle time in milliseconds.
Note 3: The input resistance is typically 12 kΩ, while input voltage is < 15 V. When input voltage increases over 15 V, the input resistance decreases in a non-linear function.
Note 4: The pulse width must be greater that the software cycle time. For example with 50/50 pulse ratio, the pulse frequency is 1 / (2*pulse width)
Functional block diagram