Single-gate inverter for ultra-low-voltage rails
The Texas Instruments SN74AUC1GU04DBVR is a single unbuffered inverter from the 74AUC series, designed for supply rails from 0.8V to 2.7V. It delivers 9mA source and sink at the output, with a propagation delay of 2.1ns at 2.5V into a 30pF load. The unbuffered topology means the output follows the input inversion without hysteresis, so it behaves as a pure logic gate — useful in oscillator circuits or as a linear amplifier stage where a Schmitt trigger would distort the signal.
Where the 0.8V to 2.7V supply matters
The 0.8V minimum supply lets this part interface directly with the lowest-voltage cores in modern SoCs and FPGAs — think 1.0V or 1.2V logic domains where a standard 3.3V inverter would need a level translator. The 2.7V ceiling covers the 1.8V and 2.5V rails common in DDR memory and low-power RF chips.
Housed in a SOT-23-5 (SC-74A) package, the single-gate format saves board area when you need just one inverter in a signal path — no wasted gates from a quad package. MSL level is not listed here, but the ROHS3 compliance means no lead-processing concerns.
The 74AUC series is a mature low-voltage logic family, and the single-gate variants tend to have long production runs.