onsemi MC74VHC86MELG

Overview

MC74VHC86MELG from onsemi is a quad 2-input XOR gate in SOIC-14 package, designed for high-speed CMOS logic applications with 4.8 ns typical propagation delay at 5 V, 2.0–5.5 V supply range, and full 5.0 V CMOS-level output swing-used in digital comparators, parity generators, and arithmetic logic units.

For engineers reviewing the MC74VHC86MELG datasheet, pinout, applications, or equivalent options, key selection criteria include TTL/CMOS input compatibility, 5.5 V tolerant inputs, low-noise dynamic output behavior (VOLP ≤ 0.8 V), and AEC-Q100-qualified variants for automotive use.

Technical Context

The MC74VHC86MELG implements four independent XOR gates using silicon-gate CMOS technology, achieving bipolar-Schottky TTL speed while retaining CMOS power efficiency. Its three-stage internal architecture includes a buffer output stage that enhances noise immunity and stabilizes switching behavior.

Input structures tolerate up to 5.5 V regardless of VCC, enabling safe interfacing between 3.3 V and 5.0 V systems. Output stages deliver rail-to-rail CMOS swings and support hot insertion and battery-backup scenarios via inherent power-down protection.

Key Specifications

Pinout & Package

MC74VHC86MELG is housed in a 14-lead SOIC package (Case 751A), with 1.27 mm pitch, 8.75 mm × 3.90 mm body, and Pb-free "G" suffix marking. Pin 1 is index-marked; pin 7 is GND, pin 14 is VCC.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC86APWR and 74HC86N, the MC74VHC86MELG uniquely combines 5.5 V input tolerance, 4.8 ns speed at 5 V, and SOIC-14 packaging - making it optimal for mixed-voltage industrial controllers requiring interoperability with legacy 5 V peripherals.

Availability

MC74VHC86MELG is available at Aetrix Electronics and suitable for industrial automation, automotive body control modules, and test equipment requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for MC74VHC86MELG 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, analog, sensor, and logic solutions for automotive, industrial, and cloud infrastructure markets.

The MC74VHC86MELG belongs to the VHC (Very High Speed CMOS) logic family, engineered to replace bipolar TTL in performance-critical digital systems while delivering CMOS power efficiency and robust voltage-range flexibility.

FAQ

What logic family does the MC74VHC86MELG belong to, and how does it differ from standard 74HC?

The MC74VHC86MELG belongs to the VHC (Very High Speed CMOS) family. Unlike standard 74HC, it achieves 4.8 ns propagation delay at 5 V-nearly 4× faster-while maintaining identical pinout and supply range (2.0–5.5 V). It also features 5.5 V-tolerant inputs, which standard 74HC lacks, enabling safer interfacing with 5 V signals when powered from 3.3 V.

Can the MC74VHC86MELG operate with a 3.3 V supply while interfacing to 5 V inputs?

Yes. The MC74VHC86MELG supports input voltages up to 5.5 V regardless of VCC, so it can safely accept 5 V logic signals while powered from 3.3 V. This eliminates the need for external level shifters in mixed-voltage systems such as FPGA I/O banks driving legacy 5 V peripherals.

What is the maximum output current capability of each XOR gate in the MC74VHC86MELG?

Each output of the MC74VHC86MELG can source or sink up to ±8 mA at VCC = 4.5 V, and ±4 mA at VCC = 3.0 V, as specified in the DC Electrical Characteristics table. This supports direct driving of standard CMOS loads (e.g., 50 pF) and multiple 74-series inputs without buffering.

Does the MC74VHC86MELG have built-in protection against latch-up or ESD?

Yes. The MC74VHC86MELG exceeds 100 mA latch-up immunity per JEDEC JESD78 Class II, and provides Human Body Model (HBM) ESD protection >2000 V. These features ensure robustness in manufacturing handling and field operation, especially in industrial environments with variable grounding.

Is the MC74VHC86MELG suitable for automotive applications?

The MC74VHC86MELG itself is not AEC-Q100 qualified; however, its pin-compatible variant MC74VHC86DTR2G−Q is AEC-Q100 qualified and PPAP capable. For automotive body control or infotainment subsystems requiring qualification, the −Q suffix version must be selected - the MC74VHC86MELG is intended for industrial and commercial use.