The 54ACTQ/74ACTQ02 devices contain four 2‑input NOR gates that use National Semiconductor’s Quiet Series technology for low‑noise switching and improved dynamic threshold performance. The family offers TTL‑compatible inputs, reduced Ific, and enhanced latch‑up immunity.
The document provides absolute maximum ratings, DC and AC electrical characteristics, noise measurement procedures, ordering information, and detailed mechanical dimensions for multiple package types.
| Output source/sink current | 24 mA |
|---|---|
| Minimum ESD protection | 4 kV |
| Supply voltage (Vcc) | 4.5 V to 5.5 V |
| Propagation delay (typical tPLH) | 2.0 ns |
Each gate can source or sink up to 24 mA.
The device provides a minimum of 4 kV ESD protection.