Quad 2-input XOR in a 14-TSSOP — the 5V glue-logic workhorse
The Texas Instruments SN74AHCT86PW is a quad 2-input XOR (exclusive OR) gate from the 74AHCT logic family, packaged in a 14-TSSOP (4.40 mm wide) for surface-mount assembly. It operates from a 4.5 V to 5.5 V supply, making it a direct fit for 5 V TTL and CMOS systems where you need to compare two digital signals, generate parity, or implement controlled inverters in the data path. Four independent gates per package save board area compared to single-gate alternatives, and the industrial temperature range (-40°C to 85°C) covers most factory-floor, outdoor telecom, and automotive cabin environments without needing a wider-range variant.
8.8 ns propagation delay — timing closure for 5 V buses
The maximum propagation delay of 8.8 ns at 5 V with a 50 pF load sets the timing budget for this gate in a signal chain. At 5 V operation, that delay is consistent with the 74AHCT family's speed grade — fast enough for most 5 V logic interfaces running below about 50 MHz, but not a high-speed contender against the 74LVC86APWR, which delivers 4.4 ns at 3.3 V. If your bus runs at 5 V and you need every nanosecond of margin, the 74AHCT86's 8.8 ns is the number to budget; if you are migrating to 3.3 V, the LVC variant is the better fit.
Active production — no LTB risk for new designs
The SN74AHCT86PW carries an Active lifecycle status with ROHS3 compliance. For a BOM line that needs a 5 V XOR gate in a 14-TSSOP footprint, this part can be specified into production without worrying about near-term obsolescence.
Supply rails and input thresholds — 5 V TTL-compatible
The supply range of 4.5 V to 5.5 V means this gate runs from a regulated 5 V rail. Input logic low is 0.8 V max, and input logic high is 2 V min — these thresholds are TTL-compatible, so the gate will reliably interpret a 3.3 V signal as a logic high as long as the supply is 5 V. Quiescent current maxes at 2 µA, negligible for power budgeting. Output drive is 8 mA source and sink, enough to drive a few CMOS inputs or a short PCB trace, but not a heavy load like a relay coil or long cable.