Three-channel buffer with Schmitt-trigger inputs for noisy environments
The Texas Instruments SN74AUP3G17DQER is a triple non-inverting buffer from the 74AUP family, each channel with a Schmitt-trigger input for clean switching on slow or noisy edges. It operates from 0.8V up to 3.6V, making it suitable for battery-powered portable gear as well as core-logic level translation in mixed-voltage boards. The push-pull outputs sink and source 4mA each, enough to drive a few CMOS loads or a low-power LED through a series resistor, but not a relay coil or high-current bus. Packaged in an 8-X2SON measuring 1.4x1 mm, it fits tight layouts where every square millimetre counts.
Package reality — small footprint, careful assembly
The 8-X2SON (1.4x1 mm) is a leadless package with exposed pads underneath. It saves board area but demands a well-controlled reflow profile and post-solder inspection — not a hand-solder part. Plan for a solder-paste stencil with appropriate aperture ratio and X-ray inspection to confirm joint quality.
Lifecycle — active, no EOL concern
The 74AUP series remains a current portfolio family at Texas Instruments.