Diodes Incorporated 74HC86S14-13

Overview

74HC86S14-13 from Diodes Incorporated is a quad 2-input XOR gate IC in SO-14 package, operating from 2.0V to 6.0V supply, delivering 4mA output drive at 4.5V, with Schmitt-trigger inputs and CMOS low-power logic. It implements Boolean Y = A ⊕ B across four independent channels for digital signal comparison and parity generation in interface and control circuits.

For engineers reviewing the 74HC86S14-13 datasheet, 74HC86S14-13 pinout, 74HC86S14-13 application, or 74HC86S14-13 equivalent, key selection criteria include input threshold compatibility (VIH/VIL), propagation delay (7–27 ns), output drive capability (±4mA), and SO-14 thermal and layout constraints for high-density PCBs.

Technical Context

This device integrates four independent CMOS-based XOR gates sharing a common VCC (Pin 14) and GND (Pin 7). Each gate accepts two logic-level inputs and produces a true-complement output without internal feedback or enable control.

All inputs feature Schmitt-trigger action-providing hysteresis of ~0.3V at 4.5V-to reject noise on slow-rising signals. The outputs are standard push-pull, supporting TTL- and CMOS-compatible interfacing across the full 2.0–6.0V supply range.

Key Specifications

Pinout & Package

74HC86S14-13 uses the standard SO-14 (Small Outline-14) package: 8.53–8.74 mm body length, 3.80–3.99 mm width, 1.47–1.73 mm height, 1.27 mm lead pitch, with gull-wing leads and moisture sensitivity level (MSL) 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74HC86DR and MC74HC86ADTR2G, the 74HC86S14-13 offers identical logic behavior and SO-14 compatibility but delivers higher ESD robustness (2 kV HBM vs. 1.5 kV for TI, 2 kV for onsemi) and broader industrial temperature margin (–40°C to +125°C with full AC spec).

Availability

74HC86S14-13 is available at Aetrix Electronics and suitable for industrial control panels, PC peripheral interfaces, and consumer audio/video signal routing requiring stable component supply and long-term manufacturability.

Supply support for 74HC86S14-13 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 analog ICs, headquartered in Plano, Texas, with design centers across Asia and Europe, serving automotive, industrial, and computing markets.

The 74HC logic family targets cost-sensitive, high-reliability general-purpose digital applications-emphasizing wide voltage operation, noise immunity, and drop-in compatibility with legacy TTL and CMOS systems.

FAQ

What is the maximum operating frequency for reliable XOR operation?

The 74HC86S14-13 supports reliable toggling up to ~10 MHz under typical conditions (VCC = 4.5V, CL = 50 pF), based on worst-case propagation delay (27 ns) and transition time (22 ns). For sustained 25 MHz operation, derating to VCC ≥ 5.5V and CL ≤ 30 pF is required per switching characteristics data.

Can unused inputs be left floating?

No-unused inputs must be tied to VCC or GND. Floating inputs cause increased ICC, erratic output states, and potential latch-up due to undefined CMOS gate bias. The datasheet explicitly mandates this in Recommended Operating Conditions (Note 6) to ensure stable static and dynamic performance.

Does the SO-14 package support reflow soldering per JEDEC J-STD-020?

Yes-the SO-14 package for 74HC86S14-13 is qualified for standard Pb-free reflow profiles (peak 260°C, 60 sec max above 217°C), with MSL rating of Level 1 (unlimited floor life), as confirmed in Diodes' AP02002 package documentation and material declarations.

How does Schmitt-trigger action improve noise immunity?

Schmitt-trigger inputs provide ~0.3V hysteresis at 4.5V supply-meaning VIH ≈ 3.15V and VIL ≈ 2.85V-so noise spikes <300 mV cannot trigger false transitions. This eliminates need for external RC filters in switch or sensor interfaces, reducing component count and board space.