ALU Schematics

These are the schematics I used during construction of the arithmetic-logic unit (ALU) board. They are simple scans of hand-drawn diagrams. The originals are pencil on notebook paper, and may be a little hard to read in places, especially if I erased something and drew it again. I may replace these with proper graphics drawings, but for now this is all I have.

Overall Plan
Operation Logic Design
Adder and Carry Select Multiplexor
Output Multiplexor
AND and OR
Data Inverters and Multiplexor
XOR
Operation Logic
Connector Pin Assignments
Layout, top
Layout, bottom
Parts List

© Donn Stewart 2004