3. External Connection
DIO-48D-LPE
31
Connecting I/O Signals
The I/O circuits of interface blocks of this board are illustrated in Figure 3.5. Signals are LVTTL levels
and positive logic. None of the signals is pulled up.
I/O Circuit
GND
GND
INPUT/OUTPUT
SN74LV245
33
Ω
External circuit
Board
Figure 3.5. I/O Circuit
CAUTION
-
Take care not to short the outputs to digital ground as this may cause a fault.
-
If connecting pull-up resistors to the outputs, use a resistor of approximately 10k
Ω
and pull-up to the
5V power supply, or use a resistor of approximately 4.7k
Ω
and pull-up to the 3.3V power supply.
Summary of Contents for DIO-48D-LPE
Page 7: ...vi DIO 48D LPE ...
Page 15: ...1 Before Using the Product 8 DIO 48D LPE ...
Page 33: ...2 Setup 26 DIO 48D LPE ...
Page 45: ...4 Function 38 DIO 48D LPE ...