The Texas Instruments SN74AC14DR is a hex inverter with Schmitt-trigger inputs from the 74AC series. Each of the six channels inverts a single input, and the Schmitt-trigger hysteresis cleans up slow or noisy edges. Supply range runs from 2 V to 6 V. Outputs source or sink 24 mA per channel.
Supply voltage and input thresholds
Rated for 2 V to 6 V supply. The low-level input threshold is 0.5 V to 1.1 V; the high-level threshold is 2.2 V to 3.9 V.
Output drive and propagation delay
Each output can source or sink 24 mA. The 10 ns propagation delay at 5 V and 50 pF load is typical for the 74AC family. Quiescent current maxes at 2 µA.