CD54ACT20, CD74ACT20 Dual 4-input positive NAND gates, this datasheet covers the characteristics and specifications of the two 4-input positive NAND gates, including pinout diagram, logic gate truth table, package type and package size.
The CD54ACT20 and CD74ACT20 are dual 4‑input positive‑NAND gates offered by Texas Instruments. Each device contains two independent NAND gates that implement the Boolean function Y = A·B·C·D in positive logic. The datasheet provides electrical characteristics, absolute maximum ratings, and recommended operating conditions for reliable design.
The document also lists ordering information, package options (PDIP, SOIC, CDIP), mechanical drawings, and regulatory notices. Packaging details such as tape‑and‑reel dimensions and RoHS compliance are included for manufacturing and logistics planning.
| Output drive current | ±24 mA |
|---|---|
| Fanout capability | 15 F devices |
| ESD protection | 2 kV |
Each output can source or sink up to ±24 mA.
The gates are rated for at least 2 kV of ESD protection.