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Technical Description
OMG-PCI-DIO48 Page 5
Electrical Characteristics
The table below provides the electrical characteristics of each Input/Output. Each port is buffered
with a 74LS245 octal bi-directional transceiver. Each input is capable of sinking up to
24 mA, while each output can source up to 15 mA.
Recommended Operating Conditions
Min Max
Input 0 V 5.25 V
Source 15 mA
Sink 24 mA
Electrical Characteristics
High Level Input Voltage Min 2 V
Low Level Input Voltage Max 0.8 V
High Level Output Voltage
Min 2 V at 15 mA
Typically 3.4 V at 3 mA
Low Level Output Voltage Max 0.55 V at 24 mA
Figure 1-Electrical Characteristics