RC2014 enhanced prototype board

If you’re into making I/O cards for the RC2014 than this enhanced prototype board might be of interest to you.

It features circuitry (see schematic) to for selectable decoding the I/O address and also gates to generate !IORD and !IOWR signals, as well as two spare OR gates.

The IC’s used are:

74LS32 Quad OR gate
74LS688 Octal (8-bit) magnitude comparator

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