Six Schmitt-trigger inverters for noise-immune signal conditioning
The Texas Instruments SN74LVC14ADRG3 packs six independent Schmitt-trigger inverters in a 14-SOIC package. Each channel inverts a single input with hysteresis on the switching thresholds — the low-level threshold sits between 0.15 V and 0.8 V, the high-level between 1.3 V and 2 V, giving you clean edges even with slow or noisy inputs. Outputs source and sink 24 mA each, enough to drive a few fan-out loads or a short PCB trace directly.
6.2 ns propagation delay — timing budget at 3.3 V
Max propagation delay is 6.2 ns at 3.3 V with a 50 pF load. At 1.8 V the delay stretches, but the datasheet doesn't quote a number there — plan extra margin if running near the low end of the supply range. For a 50 MHz clock-recovery or data-conditioning path, 6 ns is comfortable; above 100 MHz you'll want the 74LVC1G or a dedicated clock buffer. Quiescent current maxes out at 1 µA, so the part won't leak into your standby budget.
TI lists the SN74LVC14ADRG3 as Active (current product). ROHS3 compliant.