Diodes Incorporated 74AHC86S14-13

Overview

74AHC86S14-13 from Diodes Incorporated is a quad 2-input XOR gate IC in SO-14 package, operating from 2.0V to 5.5V supply, delivering 8mA output drive at 4.5V, with 5.5V-tolerant inputs and Schmitt-trigger inputs for noise immunity-used in voltage translation and digital logic interfacing within PC peripherals and set-top box control planes.

For engineers reviewing the 74AHC86S14-13 datasheet, 74AHC86S14-13 pinout, 74AHC86S14-13 application, or 74AHC86S14-13 equivalent, key selection factors include input voltage tolerance (5.5V), propagation delay (3.4ns typ @ 5V, CL=15pF), output drive capability (±8mA), Schmitt-trigger input hysteresis, and SO-14 thermal and mounting compatibility.

Technical Context

This device implements four independent Boolean XOR functions (Y = A ⊕ B) using advanced CMOS AHC technology, supporting mixed-voltage system interfacing via 5.5V-tolerant inputs while powered from as low as 2.0V. Each gate features push-pull outputs and Schmitt-trigger action on all inputs for robust signal conditioning.

It operates across industrial temperature range (–40°C to +125°C), meets JESD22 ESD standards (2kV HBM, 1kV CDM), and complies with latch-up immunity per JESD78 Class II (>250mA). Propagation delay is specified under defined load (CL = 15pF or 50pF) and transition rate conditions.

Key Specifications

Pinout & Package

74AHC86S14-13 is housed in a 14-pin Small Outline (SO-14) package with standard 1.27mm pitch, 8.53–8.74mm body length, and 3.80–3.99mm width. The package is lead-free, RoHS-compliant, and halogen-free per Diodes Inc. "Green" definition.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74AHC86DR and 74LVC86AD,118, the 74AHC86S14-13 uniquely balances 5.5V input tolerance, Schmitt-trigger noise rejection, and full industrial temperature support-making it optimal for mixed-voltage control logic in thermally demanding consumer and industrial electronics.

Availability

74AHC86S14-13 is available at Aetrix Electronics and suitable for PC peripheral interface design, set-top box control logic, and hard disk drive controller applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for 74AHC86S14-13 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, specializing in high-reliability, energy-efficient components for industrial, computing, and consumer markets.

The 74AHC logic family targets robust, low-power, mixed-voltage digital interfacing-designed specifically for glue logic, voltage translation, and noise-immune signal conditioning in space-constrained embedded systems.

FAQ

Can 74AHC86S14-13 operate reliably at 2.0V supply?

Yes. The device is fully specified down to 2.0V supply, with guaranteed VIH/VIL thresholds (e.g., VIH = 1.5V min at VCC = 2.0V) and functional propagation delay (11.0ns max at 2.0V, CL = 15pF). It maintains Schmitt-trigger hysteresis and 5.5V input tolerance across the entire 2.0–5.5V range.

Is the SO-14 package of 74AHC86S14-13 compatible with standard reflow profiles?

Yes. The SO-14 package is JEDEC-standard and qualified for lead-free reflow per IPC/JEDEC J-STD-020. Peak temperature up to 260°C for ≤60 seconds is supported, with moisture sensitivity level (MSL) rated at 1-unlimited floor life when sealed per packaging specification (-13 tape-and-reel).

Does 74AHC86S14-13 require external pull-up or pull-down resistors on unused inputs?

Yes. Per datasheet Note 5, unused inputs must be tied to either VCC or GND to prevent floating states that increase ICC and cause unpredictable output behavior. This is mandatory-even with Schmitt-trigger inputs-because internal biasing is not provided.

How does the Schmitt-trigger input improve performance in noisy environments?

The Schmitt-trigger action provides ~300mV hysteresis (e.g., VIH ≈ 1.65V, VIL ≈ 1.35V at 5.5V VCC), rejecting noise spikes and slow edge transitions that would otherwise cause multiple output toggles. This eliminates need for external RC filtering in applications like front-panel button debouncing or motor encoder signal conditioning.