GAL16V8 as a modern substitute for a 7447?

Implementing the combinatorial logic for a seven segment decoder is trivial even for the simplest GAL. But, as somebody else pointed out, the latches in a simple GAL are permanently tied to output pins, so a 4 bit counter plus a seven segment decoder would need 4+7=11 output pins. A 16V8 has only 8 outputs, and a 22V10 has only 10, which rules both of them out. Now if you only wanted it to latch the data rather than count, that'd be possible with a 16V8. Hmm... Having said all that, it might be possible to put a state machine into a 16V8 that had a 7 bit current state and a next state function that corresponded to "counting" is seven segments. In theory that'd work, but I don't know off hand if there are enough terms inside a 16V8 to implement that next state function. I'll leave that as an exercise for the reader :-) Another thing to keep in mind is that parts like these are really power hungry, even compared with traditional 74xx parts. 15:40 Z Are you back down there again?? Did you see the NBC news team that visited a few weeks ago? Bob