STMicroelectronics 74VHC86MTR

Overview

74VHC86MTR from STMicroelectronics is a quad 2-input exclusive-OR (XOR) gate in SO-14 package, operating from 2V to 5.5V supply, with 4.8 ns typical propagation delay at 5V, ±8 mA symmetrical output drive, and 2 µA max quiescent current at 25°C - used in digital logic level translation, parity generation, and arithmetic circuits.

For engineers reviewing the 74VHC86MTR datasheet, 74VHC86MTR pinout, 74VHC86MTR application, or 74VHC86MTR equivalent, key selection criteria include input voltage tolerance up to 7V independent of VCC, ESD immunity of 2 kV, balanced tPLH/tPHL delays, power-down input protection, and compatibility with both 3.3V and 5V logic systems.

Technical Context

This device implements four independent XOR logic functions using sub-micron C2MOS technology, enabling rail-to-rail input acceptance (–0.5V to 7.0V) regardless of VCC level. Its inputs tolerate overvoltage conditions and remain protected during power-down states.

The symmetric output impedance (|IOH| = IOL ≥ 8 mA) ensures matched rise/fall times and low ground bounce, while the 18 pF power dissipation capacitance supports predictable dynamic current calculation via ICC(opr) = CPD × VCC × fIN + ICC/4 per gate.

Key Specifications

Pinout & Package

74VHC86MTR is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package with standard 1.27 mm pitch, 8.55–8.75 mm body width, and tape-and-reel packaging (MTR suffix). Pin 7 is GND; Pin 14 is VCC; each XOR gate occupies three pins (two inputs, one output).

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HC86DR and SN74LVC86APWR, the 74VHC86MTR uniquely combines 7V input tolerance, 4.8 ns speed at 5V, and 2 µA quiescent current - making it optimal for robust, mixed-voltage industrial control and legacy system upgrades.

Availability

74VHC86MTR is available at Aetrix Electronics and suitable for industrial control panels, automotive body electronics, and medical diagnostic equipment requiring stable component supply across extended temperature ranges (–55°C to +125°C).

Supply support for 74VHC86MTR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.

The 74VHC logic family targets high-speed, low-power, and robust interface applications - specifically engineered for interoperability across voltage domains and resilience in harsh electrical environments.

FAQ

Can 74VHC86MTR operate with VCC = 3.3V while accepting 5V inputs?

Yes. The device supports VCC from 2V to 5.5V and accepts input voltages from –0.5V to 7.0V regardless of VCC level. At VCC = 3.3V, 5V inputs are safely tolerated due to built-in power-down protection and input clamp diodes - no external resistors or level shifters are required.

What is the maximum output load capacitance supported at 4.8 ns propagation delay?

The 4.8 ns typical tPD is specified at VCC = 5.0V ± 0.5V and CL = 15 pF. At CL = 50 pF, tPD increases to 6.3 ns. For designs requiring ≤5 ns delay, total capacitive load (including trace, probe, and fan-out) must be held to ≤15 pF with proper PCB layout and termination.

Does 74VHC86MTR require external pull-up or pull-down resistors on unused inputs?

No. Unused inputs may be tied directly to VCC or GND. The device features high-impedance inputs with ≤1 µA leakage current and built-in protection - floating inputs are not permitted due to potential noise susceptibility and increased ICC, but no external resistors are needed for termination.

How does the 2 kV ESD rating impact board-level design?

The 2 kV HBM ESD rating applies to each pin and reflects internal protection circuitry. It eliminates the need for discrete TVS diodes on signal lines in most industrial environments, though IEC 61000-4-2 compliance requires external protection for >4 kV contact discharge - board layout should still minimize trace length and avoid stubs near connectors.