Diodes Incorporated 74LVC1G86Z-7

Overview

74LVC1G86Z-7 from Diodes Incorporated is a single 2-input XOR gate in SOT553 package, operating from 1.65V to 5.5V supply, delivering ±24mA output drive at 3.3V, with 5.5V-tolerant inputs and IOFF partial-power-down protection. It performs the Boolean function Y = A ⊕ B and is used for voltage-level shifting and signal isolation in portable logic interfaces.

For engineers reviewing the 74LVC1G86Z-7 datasheet, 74LVC1G86Z-7 pinout, 74LVC1G86Z-7 application, or 74LVC1G86Z-7 equivalent, key selection criteria include supply voltage range (1.65–5.5V), output drive strength (±24mA @ 3.3V), IOFF-enabled power-down isolation, 5.5V input tolerance, and propagation delay (≤6.5ns @ 3.3V).

Technical Context

This device implements a positive-logic exclusive OR function (Y = A·B̅ + Ā·B) using CMOS technology, supporting mixed-voltage interfacing via 5.5V-tolerant inputs while powered from as low as 1.65V. Its IOFF circuit actively disables outputs during power-down to prevent back-current flow between powered and unpowered rails.

Designed for low-power portable applications, it features 14pF typical power-dissipation capacitance and operates across –40°C to +125°C ambient temperature. The SOT553 package (1.6mm × 1.6mm × 0.62mm, 0.5mm pitch) enables high-density PCB layout while maintaining thermal resistance θ_JA of 231°C/W.

Key Specifications

Pinout & Package

SOT553 (1.6mm × 1.6mm × 0.62mm, 0.5mm lead pitch) is a 5-pin ultra-thin leaded package with exposed pad option (not electrically connected). Pin 1 is marked by a beveled corner; pin numbering follows standard SOT553 top-view convention.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 2-input XOR gate applications.

Compared with SN74LVC1G86DBVR and 74AUP1G86GW,125, the 74LVC1G86Z-7 uniquely balances ultra-small SOT553 footprint (1.6mm²), robust ±24mA drive, and full 1.65–5.5V operation-making it optimal for space-constrained, mixed-voltage portable logic where both size and drive capability matter.

Availability

74LVC1G86Z-7 is available at Aetrix Electronics and suitable for USB OTG arbitration, IoT sensor validation, industrial PLC input conditioning, and wearable button matrix encoding requiring stable component supply and long-term manufacturability.

Supply support for 74LVC1G86Z-7 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 analog ICs, specializing in high-reliability, low-power solutions for consumer, industrial, and computing markets.

The 74LVC logic family targets portable and mixed-voltage digital systems, emphasizing wide supply range, 5V-tolerant inputs, and IOFF power-down safety for modern embedded designs.

FAQ

What is the maximum clock frequency supported by the 74LVC1G86Z-7?

The device has no internal clock; its maximum toggle rate depends on propagation delay and load. With ≤6.5ns t_PD at 3.3V and 50pF load, it supports reliable operation up to ~100MHz in well-designed PCB layouts with controlled impedance and minimal trace capacitance.

Can the 74LVC1G86Z-7 be used with a 1.8V supply and 3.3V input signals?

Yes. Its inputs tolerate up to 5.5V regardless of V_CC, so 3.3V signals are safely accepted while powered from 1.8V. The output will swing rail-to-rail (0V to 1.8V), preserving logic levels for downstream 1.8V receivers.

Does the SOT553 package include an exposed thermal pad?

No. The SOT553 package for 74LVC1G86Z-7 is a standard 5-pin leaded package without an exposed thermal pad. Thermal dissipation relies on copper pour under pins 3 (GND) and 5 (V_CC), with θ_JA specified at 231°C/W on FR-4 with minimum recommended pads.

How does IOFF functionality behave during power sequencing?

When V_CC drops below ~0.8V, the IOFF circuit activates and forces the output (pin 4) into high-impedance state, blocking current flow from external 5.5V-tolerant inputs into the powered-down device-preventing latch-up or damage in asymmetric power-down scenarios.