Specifications
Sealevel Systems
PIO-32.PCI
Page
6
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 2-Electrical Characteristics
