614 Extremely cool stuff (secret)
614 : Extremely cool stuff (secret)
- Author: Alexander Aakersø
- Description: 4bit ripple carry adder without carry-in
- GitHub repository
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- Clock: 0 Hz
How it works :)
Simple 4 bit carry adder with no initial carry-in. Inputs A/B0 reference bit 0, A/B1 reference bit 1 and so forth. Output O0 reference output bit 0, O1 reference output bit 1 and so forth.
How to test
Simply connect VCC to some of the input pins and scope the output pins.
External hardware
Attach one LED to each output - dependent on the choice of LED a resistor in series can also be included. To make testing easier, switches can be connected to the input pins.
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | A0 | O0 | |
| 1 | B0 | O1 | |
| 2 | A1 | O2 | |
| 3 | B1 | O3 | |
| 4 | A2 | O4 | |
| 5 | B2 | ||
| 6 | A3 | ||
| 7 | B3 |