Diodes Incorporated 74LVC1G86FW4-7

Overview

74LVC1G86FW4-7 from Diodes Incorporated is a single 2-input XOR gate in X2-DFN1010-6 package, operating from 1.65V to 5.5V supply, with 5.5V-tolerant inputs and ±24mA output drive at 3.3V. It implements the Boolean function Y = A ⊕ B and supports partial power-down via IOFF circuitry for backflow prevention in mixed-voltage systems. Used in voltage level shifting and logic isolation in portable computing peripherals.

For engineers reviewing the 74LVC1G86FW4-7 datasheet, 74LVC1G86FW4-7 pinout, 74LVC1G86FW4-7 application, or 74LVC1G86FW4-7 equivalent, key selection criteria include supply voltage range (1.65–5.5V), IOFF-enabled power-down behavior, 3.3V output drive capability (±24mA), propagation delay (2.3ns typ @ 3.3V), and DFN1010 footprint compatibility with high-density PCB layouts.

Technical Context

This device performs exclusive-OR logic using CMOS technology with rail-to-rail output swing and input thresholds scaled to VCC (e.g., VIH = 0.7×VCC at 4.5–5.5V). Its IOFF circuit actively disables outputs during power-down, preventing current backflow when VCC = 0V while inputs remain biased.

The X2-DFN1010-6 package features six terminals on a 1.0mm × 1.0mm body with 0.35mm pad pitch, where pins 1 (A), 2 (GND), 3 (VCC), 4 (Y), 5 (NC), and 6 (B) are arranged per top-view layout. No internal pull-ups or pull-downs are present; unused inputs must be tied to VCC or GND.

Key Specifications

Pinout & Package

X2-DFN1010-6 is a 1.0mm × 1.0mm, 0.4mm height, 6-terminal leadless package with exposed thermal pad (not electrically connected), optimized for space-constrained PCBs and automated assembly. Pin 1 (A) is marked by a chamfered corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G86DBVR and 74LVC1G86FS3-7, the 74LVC1G86FW4-7 balances compactness (1.0×1.0mm), routing accessibility (6-pin linear arrangement), and thermal performance (θJA = 445°C/W), making it optimal for high-volume portable electronics requiring reliable DFN integration.

Availability

74LVC1G86FW4-7 is available at Aetrix Electronics and suitable for voltage translation, logic isolation, and power-down signal gating requiring stable component supply in consumer, industrial, and computing applications.

Supply support for 74LVC1G86FW4-7 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 low-voltage, mixed-supply digital interfacing with emphasis on power efficiency, wide voltage operation, and robust ESD/latch-up performance for portable and space-constrained designs.

FAQ

What is the maximum clock frequency supported by the 74LVC1G86FW4-7?

The device does not specify a maximum clock frequency, but its typical propagation delay is 2.3ns at 3.3V, supporting toggle rates up to ~217MHz in ideal conditions. Real-world maximum frequency depends on load capacitance, supply stability, and PCB routing; for reliable 100MHz operation, ensure total load ≤30pF and use local 100nF decoupling.

Can Pin 5 (NC) be connected to ground or left floating?

Pin 5 is internally unconnected and must remain floating per Diodes Incorporated design guidelines. Grounding it may cause unintended solder bridging or parasitic coupling; the recommended practice is to omit copper connection entirely in the PCB layout and confirm no solder mask opening exists over the pad.

Does the IOFF feature require external control signals?

No - IOFF is fully automatic and activates whenever VCC drops below ~0.8V, disabling outputs regardless of input states. No external enable/disable pin or configuration is needed; the circuit relies on internal voltage detection and gate biasing to isolate outputs during power loss or sequencing.

Is the X2-DFN1010-6 package compatible with standard reflow profiles?

Yes - the package is qualified for IPC/JEDEC J-STD-020D moisture sensitivity level 1 and supports standard lead-free reflow profiles (peak 260°C, 60s above 217°C). Ensure stencil aperture matches Diodes' recommended pad layout (0.20mm × 0.90mm for signal pads) and include thermal relief for the exposed pad if used for mechanical anchoring.