https://hsto.org/webt/4a/mb/ad/4ambad_bocdk6_0khdqve6grzjs.p...
two ternary multiplexers out of two dg403 chips.
https://hsto.org/webt/4a/mb/ad/4ambad_bocdk6_0khdqve6grzjs.p...
two ternary multiplexers out of two dg403 chips.