28 ns propagation delay — timing margin on a 5V bus
The maximum propagation delay is 28 ns at 4.5V supply with a 50 pF load.
Active lifecycle — no last-time-buy scramble
The CD74HCT20MT carries an Active product status and is ROHS3 compliant. For a BOM line that needs a dual 4-input NAND gate in a 14-SOIC footprint, this part is a safe choice for both new builds and repair stock — no LTB risk, no forced redesign to a different logic family.
Mounting and package — 14-SOIC, surface-mount only
The device comes in a 14-SOIC package with a body width of 3.90 mm (0.154"). It's a surface-mount part — no through-hole variant. The supplier device package is listed as 14-SOIC.
