Diodes Incorporated 74LVC86AT14-13

Overview

74LVC86AT14-13 from Diodes Incorporated is a quadruple 2-input XOR gate IC operating across 1.65V–5.5V supply, with 5.5V-tolerant inputs, IOFF-enabled partial power-down protection, and 24mA sink capability at 3.3V. It performs Boolean Y = A ⊕ B logic in mixed-voltage digital systems such as voltage translators and isolated power-down signal paths.

For engineers reviewing the 74LVC86AT14-13 datasheet, 74LVC86AT14-13 pinout, 74LVC86AT14-13 application, or 74LVC86AT14-13 equivalent, key selection criteria include input voltage tolerance (5.5V), IOFF leakage (<20 µA), propagation delay (≤5.8 ns at 3.3V), output drive strength, and TSSOP-14 thermal resistance (θJA = 159°C/W).

Technical Context

This device implements four independent XOR gates using advanced CMOS process technology, supporting rail-to-rail input operation and bidirectional voltage translation between 1.65V and 5.5V domains. Its IOFF circuit actively disables outputs during VCC = 0V, preventing back-current flow into powered subsystems.

The logic function follows strict positive-logic truth table (L/L→L, L/H→H, H/L→H, H/H→L) with guaranteed switching performance down to –40°C and up to +125°C ambient. Propagation delay is characterized with 30pF load and 500Ω source impedance per JEDEC standards.

Key Specifications

Pinout & Package

TSSOP-14 package: 4.4mm × 5.0mm body, 0.65mm pitch, exposed pad not present, RoHS-compliant lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC86APW and 74AUP2G86DC, the 74LVC86AT14-13 uniquely balances wide supply range (1.65–5.5V), 5.5V input tolerance, and TSSOP-14 thermal efficiency-making it optimal for compact, mixed-voltage industrial and computing interfaces.

Availability

74LVC86AT14-13 is available at Aetrix Electronics and suitable for PC motherboard design, notebook I/O expansion, and industrial control logic requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC86AT14-13 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and integrated circuits, specializing in high-performance, energy-efficient components for power management, signal integrity, and logic applications.

The 74LVC family delivers advanced low-voltage CMOS logic with enhanced noise immunity and mixed-voltage interoperability, designed specifically for next-generation computing, communications, and industrial control systems.

FAQ

Can 74LVC86AT14-13 operate with VCC = 1.65V while accepting 5V inputs?

Yes. The device is fully specified for 1.65V–5.5V supply operation and features 5.5V-tolerant inputs. At VCC = 1.65V, inputs may swing from 0V to 5.5V without damage or functional degradation, enabling robust voltage translation in heterogeneous logic systems.

What happens to outputs during power-down (VCC = 0V)?

When VCC drops to 0V, the IOFF circuit activates and places all four outputs in high-impedance state, limiting leakage current to ≤20 µA over –40°C to +125°C. This prevents back-current flow into other powered sections of the system, satisfying IEC 61000-4-2 and JEDEC JESD78 requirements.

Is the TSSOP-14 package thermally adequate for continuous 24mA output loading?

At 24mA per output and 3.3V VCC, total power dissipation is ~80mW. With θJA = 159°C/W, junction rise is ~13°C above ambient-well within the +150°C maximum TJ rating. For sustained high-load operation, ensure ≥2 oz copper pour and thermal vias under the exposed pad area (if modified).

How does the XOR function support edge detection in control logic?

By tying one input (e.g., 1A) to a clock or enable signal and the other (1B) to its delayed version, the XOR output produces a pulse equal to the delay difference-enabling precise edge generation. The 74LVC86AT14-13's consistent 5.8 ns max tPD ensures predictable pulse width across voltage and temperature.