Nexperia USA Inc. 74AHCT86PW,112

Overview

74AHCT86PW,112 from Nexperia is a quad 2-input EXCLUSIVE-OR gate in TSSOP14 package, designed for digital logic translation and signal-level arbitration in mixed-voltage systems. It operates from 4.5 V to 5.5 V, features TTL-compatible inputs, 8.0 ns typical propagation delay at 5 V/50 pF, and overvoltage-tolerant inputs up to 5.5 V - enabling direct interfacing between 3.3 V and 5 V domains in industrial control I/O modules.

For engineers reviewing the 74AHCT86PW,112 datasheet, 74AHCT86PW,112 pinout, 74AHCT86PW,112 application, or 74AHCT86PW,112 equivalent, this device serves as a low-power, high-noise-immunity XOR gate for parity generation, comparator enable logic, and bidirectional bus arbitration where precise timing and input level translation are required.

Technical Context

The 74AHCT86PW,112 implements four independent CMOS-based XOR gates with Schmitt-trigger inputs, ensuring robust noise rejection on slow-rising or noisy control signals. Each gate delivers rail-to-rail output swing and supports fan-out of ≥10 LS-TTL loads at 5 V.

Its TTL-level input thresholds (VIH = 2.0 V min, VIL = 0.8 V max) allow seamless integration with legacy 5 V microcontrollers and peripheral drivers, while overvoltage tolerance eliminates external level-shifting components when interfacing with higher-voltage sensors or actuators.

Key Specifications

Pinout & Package

TSSOP14 plastic thin shrink small outline package (SOT402-1), 14-lead, body width 4.4 mm, 0.65 mm pitch, exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar XOR gate applications.

Compared with SN74LVC86APW and 74HC86PW,118, the 74AHCT86PW,112 uniquely supports direct 5 V TTL interfacing without external components while maintaining full industrial temperature range and overvoltage tolerance - making it the only drop-in solution for legacy 5 V system upgrades requiring XOR functionality.

Availability

74AHCT86PW,112 is available at Aetrix Electronics and suitable for industrial automation I/O modules, motor drive control logic, and embedded communication gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74AHCT86PW,112 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert delivering high-performance logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and manufacturability in high-volume applications.

The 74AHCT series targets industrial and automotive digital logic needs where TTL compatibility, wide temperature operation, and robust ESD performance are mandatory - bridging legacy and modern 5 V system designs.

FAQ

Can 74AHCT86PW,112 operate with a 3.3 V supply?

No. The 74AHCT86PW,112 is specified only for 4.5 V to 5.5 V operation. Its TTL-compatible input thresholds require minimum 4.5 V VCC to guarantee VIH ≥ 2.0 V and proper recognition of standard TTL HIGH levels. Using 3.3 V violates recommended operating conditions and risks incorrect logic interpretation.

Does the TSSOP14 package require soldering the exposed pad?

No. The SOT402-1 package has no exposed thermal pad - unlike DHVQFN variants. The bottom surface is fully molded plastic. Thermal dissipation relies solely on lead-frame conduction through pins 7 (GND) and 14 (VCC), with Ptot derating starting at +81 °C per datasheet Section 7.

What is the maximum capacitive load for guaranteed timing performance?

The 74AHCT86PW,112 guarantees propagation delay specifications up to 50 pF load capacitance, as validated in Table 7. Driving >50 pF increases tpd nonlinearly and may cause setup/hold violations in synchronous systems; for >50 pF loads, add a buffer stage or reduce trace length and parallel capacitance.

How does Schmitt-trigger input behavior affect signal integrity?

Schmitt-trigger inputs provide ~0.3 V hysteresis at 5 V, rejecting noise spikes <10 ns wide and preventing multiple transitions on slow-rising edges (e.g., from RC-filtered reset lines). This eliminates need for external debounce circuitry in industrial switch interface designs.