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Compare TTL and CMOS logic families
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| written 7.1 years ago by |
| Parameter | TTL | CMOS |
|---|---|---|
| Basic gate | NAND | INVERTER |
| Circuit | Transistor-Transistor | Complementary MOS |
| Speed of operation | More | Less |
| Propagation delay per gate | 4 - 12 ns | 50 ns |
| Nominal supply voltage | 5 V | 3 to 15 V |
| Wired collector capability | With passive pull up | With tristate output |
| Fan-out | 10 | 50 |
| Noise immunity … |