Logic Gates
AND, OR, NOT, NAND, NOR, XOR and XNOR — the building blocks of digital circuits.
Beginner
| A | B | AND | OR | NAND | NOR | XOR | XNOR |
|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 |
| 0 | 1 | 0 | 1 | 1 | 0 | 1 | 0 |
| 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 |
| 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 |
NOT inverts a single input. Chips: 74HC08 (AND), 74HC32 (OR), 74HC00 (NAND), 74HC04 (NOT), 74HC86 (XOR).
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Universal Gates
NAND and NOR gates alone can build any logic function.
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