o Dual TIL 311 hex latching displays accessible as
output port 4
when in run mode.
Have you considered, say, a small GAL-type device driving standard
7-segment or 5x7 displays instead?
I just checked Jameco's web site and it appears that the TIL 311's
they sell (at $12 each) may indeed be "production-line" parts
still being made new by Ligitek. If so, this is a Good Thing!
Tim.