Dual buffer with 3-state outputs for low-power buses
The SN74AUP2G126DCUR is a dual non-inverting buffer from TI's 74AUP series, with independent 3-state output enables per channel. Each element handles a single bit, and the 3-state outputs let you share a bus line without contention — the output goes high-impedance when the enable pin is deasserted. Supply voltage spans 0.8 V to 3.6 V, covering 1.2 V, 1.8 V, 2.5 V, and 3.3 V logic rails. This makes it a natural fit for mixed-voltage designs where a single buffer must cross between a low-voltage core and a higher-voltage peripheral bus — no external level translator needed as long as the input thresholds align. Output drive is rated 4 mA source and 4 mA sink at the rated supply. That is enough to drive a single CMOS load or a short trace on a PCB; for heavier fan-out or long backplane runs, plan on a buffer with higher drive (like the 74LVC family's 24 mA or 32 mA options).
Industrial temperature range and package fit
Operating temperature covers -40°C to 85°C (TA), which is the industrial grade. The part is specified across this full range — the 4 mA output current and propagation delays are guaranteed at the extremes, not just at 25°C. For an outdoor telecom or factory-floor controller that sees -20°C startup and 70°C internal ambient, this buffer holds its timing margins. Packaged in 8-VFSOP (2.30 mm width) with the supplier device package listed as 8-VSSOP. The two names refer to the same footprint — TI's very-thin shrink small-outline package. The 0.5 mm pin pitch and 2.3 mm body width fit into tight PCB layouts where board area is at a premium. Surface-mount only; no through-hole variant exists.
Lifecycle and sourcing status
Sourced to order against BOM quantities. No single-source risk — the 74AUP family is widely second-sourced by multiple logic vendors, though this exact order code is TI-specific.