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.
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.
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.