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...
They both agree.
Circuit Diagram
Can a Full 74139 chip be built?
The Z88 only uses one half of the dual functionality of the full chip.
This exercise explores the additional NAND Gates required and links.
Using just NAND gates requires too many of them. See http://www.neuroproductions.be/logic-lab/index.php?id=63191 for the unfinished work in getting a full chip to work.
Extra components required
Component | Manufacturer Part No | Order Code | Price | Min Qty |
|---|---|---|---|---|
N95BT | Maplin | 4.09 | 1 | |
YA29G | Maplin | 1.79 | 1 | |
MFR3 2K2 FC | 1565301 | £0.085 | 10 |