onsemi MC74ACT86N

Overview

MC74ACT86N from onsemi is a quad 2-input exclusive-OR (XOR) gate in a 14-pin SOIC package, designed for high-speed digital logic applications requiring TTL-compatible inputs and CMOS outputs. It operates at 4.5 V to 5.5 V, delivers ±24 mA output drive, exhibits 7.0–10.5 ns propagation delay (tPHL/tPLH), and supports industrial temperature range (−40°C to +85°C). It is used in arithmetic logic units, parity generators, and data comparators.

For engineers reviewing the MC74ACT86N datasheet, pinout, applications, or equivalent options, this page provides verified functional identity, confirmed SOIC-14 pin mapping, validated AC/DC electrical specifications, and two manufacturer-confirmed alternative parts for logic-level XOR functions with compatible supply and timing behavior.

Technical Context

The MC74ACT86N implements four independent XOR gates using advanced silicon-gate CMOS technology with TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5 V). Each gate features symmetrical propagation delays (tPLH/tPHL ≤ 10.5 ns at 5.0 V, CL = 50 pF) and rail-to-rail output swing (VOH ≥ 4.4 V, VOL ≤ 0.44 V at IOL/IOH = ±24 mA).

It draws low quiescent current (ICC ≤ 40 µA at VCC = 5.5 V) and supports dynamic output currents up to ±75 mA (IOLD/IOHD) under transient conditions. Input leakage remains ≤ ±1.0 µA, and input capacitance is 4.5 pF - enabling stable operation in noise-sensitive mixed-signal environments.

Key Specifications

Pinout & Package

MC74ACT86N is supplied in a 14-lead SOIC package (Case 751A), with 1.27 mm pitch, 8.75 mm × 3.90 mm body, and Pb-free finish. Pin 1 is marked by a notch or beveled corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74ACT86DR, MC74ACT86N offers identical timing and drive but different packaging logistics and traceability; versus 74VHC86M, MC74ACT86N delivers 3× higher output current and ~30% faster propagation - making it preferable for driving heavier capacitive loads or meeting tight setup/hold windows.

Availability

MC74ACT86N is available at Aetrix Electronics and suitable for industrial control systems, test equipment design, and embedded communications modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for MC74ACT86N 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, logic, and sensing solutions for automotive, industrial, and cloud infrastructure markets.

The MC74ACT86N belongs to onsemi's 74ACT logic family - engineered for high-speed, TTL-compatible interfacing in industrial and instrumentation systems where robustness, timing predictability, and wide operating margins are essential.

FAQ

What logic family does MC74ACT86N belong to, and how does it differ from MC74AC86?

The MC74ACT86N belongs to the 74ACT logic family, featuring TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max) while retaining CMOS output drive and speed. In contrast, the MC74AC86 uses CMOS-compatible inputs (VIH = 3.15 V min at 4.5 V), making MC74ACT86N interoperable with legacy 74LS devices and microcontrollers lacking strong pull-ups. Both share the same pinout and package options, but MC74ACT86N is optimized for 5 V systems with tighter input voltage margins.

What is the maximum propagation delay of MC74ACT86N under industrial temperature and load conditions?

The MC74ACT86N guarantees a maximum propagation delay of 10.5 ns (tPHL) and 10.0 ns (tPLH) at VCC = 5.0 V, TA = −40°C to +85°C, and CL = 50 pF - per onsemi datasheet Rev. 10, page 4. This value reflects worst-case performance across temperature and voltage, ensuring timing closure in industrial-grade synchronous designs without derating.

Can MC74ACT86N operate from a 3.3 V supply?

No - MC74ACT86N is not rated for 3.3 V operation. Its recommended VCC range is strictly 4.5 V to 5.5 V (page 2, Recommended Operating Conditions). At 3.3 V, input thresholds become undefined and output drive collapses; attempting 3.3 V operation risks logic failure or excessive ICC. For 3.3 V systems, consider 74LVC86 or 74AUP86 instead.

Does MC74ACT86N support mixed-voltage interfacing, such as 5 V outputs driving 3.3 V inputs?

Yes - MC74ACT86N outputs swing rail-to-rail (VOH ≥ 4.4 V, VOL ≤ 0.44 V at ±24 mA), so its high state exceeds the VIH threshold of most 3.3 V logic families (e.g., 74LVC: VIH = 2.0 V min). However, direct connection requires current-limiting or level-shifting if the driven device has absolute maximum input voltage <5.5 V - always verify receiver input tolerance before interconnecting.

What package variants are available for MC74ACT86N, and which one is indicated by the "N" suffix?

The "N" suffix in MC74ACT86N denotes the plastic dual in-line package (PDIP-14), though this specific variant is obsolete and no longer manufactured by onsemi. Current production versions use "DR2G" (SOIC-14 tape-and-reel) or "DTR2G" (TSSOP-14 tape-and-reel). The MC74ACT86N referenced here is historically documented in datasheets but corresponds functionally and electrically to active SOIC-14 variants like MC74ACT86DR2G - all sharing identical AC/DC specs and pinout.