Quad XOR in the 74AHCT family — parametric fit for 5V bus logic
The SN74AHCT86DR: With an 8.8ns max propagation delay at 5V driving a 50pF load, this gate keeps up with 50-60 MHz data rates on a typical backplane, making it a direct drop-in for parity checking, data-path compare, or controlled-inverter functions where the 74AHCT family's bipolar-like input thresholds simplify level interfacing.
Supply and drive — what the 8mA symmetric output buys you
Input thresholds are set at 0.8V (Low) and 2V (High), matching the 74AHCT's TTL-compatible switching levels — a 5V CMOS output driving this gate sees a clean logic transition, but a 3.3V output may not reach the 2V VIH threshold without a pull-up or level translator.
Package and board-fit — 14-SOIC footprint reality
Available in Tape & Reel (TR) or Cut Tape (CT) options, the reel packaging suits automated pick-and-place for medium-to-high volume runs; the CT variant works for prototype builds or short-run repairs without committing to a full reel quantity.