Diodes Incorporated 74LVC1G86FZ4-7

Overview

74LVC1G86FZ4-7 from Diodes Incorporated is a single 2-input XOR gate in X2-DFN1410-6 package, operating from 1.65V to 5.5V supply, with 5.5V-tolerant inputs and IOFF partial-power-down protection. It delivers ±24mA output drive at 3.3V and supports voltage-level shifting in mixed-voltage logic interfaces such as USB peripheral control and low-power sensor interface circuits.

For engineers reviewing the 74LVC1G86FZ4-7 datasheet, 74LVC1G86FZ4-7 pinout, 74LVC1G86FZ4-7 application, or 74LVC1G86FZ4-7 equivalent, this device is selected for compact board space, rail-to-rail input compatibility, low dynamic power consumption, and robust ESD immunity (2kV HBM) in portable and battery-powered digital systems.

Technical Context

The 74LVC1G86FZ4-7 implements a positive-logic exclusive OR function (Y = A ⊕ B) using CMOS technology with push-pull outputs. Its IOFF circuit disables outputs during power-down to prevent back-current flow, enabling safe use in hot-swap and partial-power-down architectures.

Input thresholds are voltage-scalable across VCC (1.65–5.5V), supporting TTL-level interfacing and bidirectional level translation. Propagation delay is 2.3ns typical at 3.3V, with 50pF load and 10MHz operation, and input capacitance is 5pF - critical for high-speed signal integrity in dense PCB layouts.

Key Specifications

Pinout & Package

X2-DFN1410-6 is a 1.4mm × 1.0mm × 0.4mm leadless surface-mount package with 6 terminals, optimized for high-density PCB layouts and automated assembly. Thermal resistance θJA is 460°C/W (JEDEC standard board), requiring minimal copper pour for thermal management in ambient ≤85°C environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G86DBVR, the 74LVC1G86FZ4-7 saves >70% board area and improves thermal dissipation in stacked PCBs; versus 74AUP1G86GW, it retains 5.5V input tolerance essential for mixed-rail industrial interfaces but consumes slightly more quiescent current.

Availability

74LVC1G86FZ4-7 is available at Aetrix Electronics and suitable for USB peripheral control, microcontroller GPIO expansion, and industrial sensor interface applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for 74LVC1G86FZ4-7 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 semiconductor company specializing in discrete, analog, and logic solutions for industrial, computing, and consumer markets, with design centers across Asia, Europe, and the US.

The 74LVC logic family targets low-voltage, high-speed digital interfacing in space- and power-constrained applications, emphasizing rail-to-rail compatibility, IOFF safety, and compact packaging for next-generation portable electronics.

FAQ

Can 74LVC1G86FZ4-7 operate reliably at 1.65V supply?

Yes. The device is fully characterized down to 1.65V VCC, with guaranteed VOL ≤0.45V and VOH ≥1.2V at -40°C to +85°C under 4mA load. Propagation delay increases to 9.9ns at 1.8V, but remains within specification for low-speed control logic.

Is the NC pin on X2-DFN1410-6 required to connect to ground?

No. The NC pin is internally unconnected and must remain floating per Diodes Incorporated's layout guidance. Connecting it to GND may cause parasitic coupling or violate thermal pad isolation rules defined in the DFN0808-4 and DFN1410-6 land patterns.

Does IOFF functionality activate automatically during power-down?

Yes. IOFF engages when VCC drops below ~0.8V, disabling both output drivers regardless of input states. This occurs without external control signals and prevents reverse current flow from other powered rails connected to Y, A, or B pins.

What is the maximum capacitive load the output can drive while maintaining timing specs?

The 74LVC1G86FZ4-7 maintains tPD ≤5.0ns (typical) up to 50pF load at 3.3V. Driving >60pF increases delay nonlinearly and may cause undershoot; for >100pF, add a series resistor (22–47Ω) near the output to dampen ringing and preserve signal integrity.