onsemi MC74LVX86D

Overview

MC74LVX86D from ON Semiconductor is a quad 2-input XOR gate in 14-lead SOIC (D suffix) packaging, designed for low-voltage logic interfacing with 5V-tolerant inputs up to 7V. It delivers tPD = 5.8 ns (typ) at VCC = 3.3 V, ICC ≤ 2 µA (max) at TA = 25°C, and supports mixed-voltage system interoperation between 3V and 5V domains in digital control and data path circuits.

For engineers reviewing the MC74LVX86D datasheet, pinout, applications, or equivalent options, this page provides verified functional identity, validated 14-pin SOIC package mapping, confirmed XOR logic behavior per gate, real-world noise immunity specs (VOLP ≤ 0.5 V), and two manufacturer-validated alternative parts for voltage-level translation and logic synthesis use cases.

Technical Context

The MC74LVX86D implements four independent CMOS-based XOR gates with rail-to-rail input tolerance (–0.5 V to +7.0 V), enabling direct connection to 5V signals while operating from a 2.0–3.6 V supply. Each gate exhibits balanced tPLH/tPHL propagation delays and guaranteed output drive of ±25 mA per pin under recommended conditions.

It features power-down input protection, latchup immunity >300 mA, and ESD robustness (HBM >2000 V). Its low-noise design achieves VOLP ≤ 0.5 V and VIHD ≥ 2.0 V, supporting clean signal integrity in high-density PCB layouts without external clamping.

Key Specifications

Pinout & Package

MC74LVX86D is housed in a 14-lead SOIC package (Case 751A), with 1.27 mm pitch, 8.65 mm × 3.90 mm body dimensions, and gull-wing leads suitable for reflow soldering.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC86APWR and 74AUP1G86GW,125, the MC74LVX86D uniquely enables direct 5V-to-3.3V logic interfacing without external components, offers integrated quad functionality in one SOIC package, and provides superior noise immunity (VOLP ≤ 0.5 V) for mixed-signal PCB layouts.

Availability

MC74LVX86D is available at Aetrix Electronics and suitable for parity generation, mixed-voltage interfacing, and hardware encryption requiring stable component supply, long-term manufacturability, and consistent parametric performance across temperature.

Supply support for MC74LVX86D 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

ON Semiconductor is a global semiconductor supplier delivering energy-efficient, high-performance silicon solutions for automotive, industrial, cloud, and IoT applications.

The MC74LVX86D belongs to the LVX low-voltage logic family, engineered for interoperability between 3V and 5V systems while maintaining speed, noise immunity, and power efficiency in space-constrained embedded designs.

FAQ

What logic function does the MC74LVX86D implement?

The MC74LVX86D implements four independent 2-input Exclusive-OR (XOR) logic gates. Each gate outputs HIGH when its two inputs differ (A ≠ B), and LOW when they match (A = B). This behavior is defined in the device's FUNCTION TABLE and verified across its full operating range (VCC = 2.0–3.6 V, TA = –40°C to +85°C). The MC74LVX86D performs this function with 5V-tolerant inputs, making it suitable for mixed-voltage logic synthesis.

Can the MC74LVX86D safely interface with 5V signals while powered from 3.3V?

Yes, the MC74LVX86D supports DC input voltages from –0.5 V to +7.0 V regardless of VCC, allowing direct connection to 5V logic outputs while operating from a 3.3V supply. This eliminates the need for external level-shifting circuitry. The MC74LVX86D maintains valid logic thresholds (VIH ≥ 1.5 V, VIL ≤ 0.5 V at VCC = 2.0 V) and output drive capability (±25 mA) under these conditions.

What is the maximum propagation delay of the MC74LVX86D under typical conditions?

The typical propagation delay (tPD) of the MC74LVX86D is 5.8 ns at VCC = 3.3 V and CL = 15 pF. The maximum specified delay is 14.5 ns under the same conditions at TA = –40°C to +85°C. These values apply to both tPLH and tPHL transitions and are measured per gate, with skew between outputs limited to ≤1.5 ns - critical for timing-critical parity or synchronization tasks using the MC74LVX86D.

Does the MC74LVX86D require external pull-up or pull-down resistors on unused inputs?

No, the MC74LVX86D does not require external biasing on unused inputs due to its internal power-down protection and input structure. However, for predictable logic states and noise immunity, ON Semiconductor recommends tying unused inputs to VCC or GND. Floating inputs may cause increased ICC or erratic output behavior. This guidance applies uniformly across all four gates in the MC74LVX86D.

Is the MC74LVX86D pin-compatible with standard 74-series XOR ICs?

Yes, the MC74LVX86D is pin- and function-compatible with industry-standard 74HC86, 74HCT86, and 74LVX86 variants in 14-lead SOIC packages. Its pinout matches the conventional arrangement: inputs A0–A3 and B0–B3 occupy pins 1,2,4,5,10,9,13,12; outputs O0–O3 are on pins 3,6,11,8; VCC is pin 14; GND is pin 7. This allows drop-in replacement in existing designs using the MC74LVX86D without layout changes.