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As the question says, I have been trying to connect inputs to a 7447 (7-segment decoder) but I get unknown segments in the pspice simulation, I am using capture CIS and I cannot figure out how to properly connect the power pins,
Here is the circuit that I created,
And here is the corresponding output,
When I connect VCC to the power pins, I get unknown states on the pspice simulation, any way I can fix that?
The 74LS47 has open collector outputs, so you will need to add pull-up resistors to get a valid High output when a segment should not be lit.
