Table of Contents |
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Part No | Chip | Manufacture | Speed nS | Package | Price | |||
---|---|---|---|---|---|---|---|---|
Min | Typ | Max | ||||||
1741279 | SN74LVC1G139DCTR | Ti | <2.5 | SM8 | $ 0.69 | |||
SN74LVC1G139DCUT | Ti / Farnell | <2.5 | VSSOP | £0.404 |
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Inputs | Outputs | ||
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B /CE | A A19 | /Y1 /CE1 FLASH | /Y0 /CE0 RAM |
0 | 0 | 1 | 0 |
0 | 1 | 0 | 1 |
1 | X | 1 | 1 |
Circuit Diagram using 2-to-4 Line Decoder
Updated 17/11/2016
Building the circuit on a breadboard externally
Components required
2 MSOP-8 AND 1 VSOP to IC adaptors were obtained in addition to the 5 2-to-4 Line Decoder chips.
This circuit could now be bread-boarded and tested outside the Z88 card case.
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