Texas Instruments SN74HC86PWR

Overview

SN74HC86PWR from Texas Instruments is a quadruple 2-input XOR gate IC in TSSOP-14 package, performing Y = A ⊕ B logic per channel with buffered CMOS inputs, 2 V to 6 V supply range, and –40°C to +85°C operating temperature. It delivers 17 ns typical propagation delay at 6 V and supports fanout of up to 10 LSTTL loads in digital logic systems requiring phase comparison or controlled inversion.

For engineers reviewing the SN74HC86PWR datasheet, SN74HC86PWR pinout, SN74HC86PWR application, or SN74HC86PWR equivalent, this page provides verified functional identity, validated pin mapping, confirmed thermal and switching specifications, and two rigorously cross-checked alternative parts for XOR gate replacement in industrial control, clock management, and signal conditioning designs.

Technical Context

The SN74HC86PWR implements four independent, fully buffered 2-input XOR gates using high-speed silicon-gate CMOS technology. Each gate operates on positive logic with balanced push-pull outputs capable of sourcing/sinking ±25 mA, and features standard CMOS inputs with ≤10 pF input capacitance and ±100 nA leakage at 6 V.

Its switching behavior is characterized by 10–21 ns propagation delay (tpd) across 2–6 V supply and –40°C to +85°C, with transition times (tt) as low as 6 ns at 6 V. The device requires no external biasing, supports unused input termination to VCC/GND, and exhibits 35 pF typical power dissipation capacitance per gate.

Key Specifications

Pinout & Package

TSSOP-14 (PW) package: 5.00 mm × 4.40 mm body, 0.65 mm lead pitch, thin-profile surface-mount construction with exposed pad option not present; RoHS-compliant, NIPDAU/SN lead finish, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74HCS86PWR and 74VHC86MTCX, SN74HC86PWR delivers the broadest supply range (2–6 V), highest thermal margin at 85°C ambient, and lowest unit cost for non-Schmitt, non-ultra-high-speed XOR applications - making it the default choice for industrial control, power management, and legacy system upgrades.

Availability

SN74HC86PWR is available at Aetrix Electronics and suitable for industrial control systems, power supply feedback loops, and embedded signal conditioning circuits requiring stable component supply, long-term lifecycle support, and guaranteed RoHS compliance.

Supply support for SN74HC86PWR 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with over 90 years of innovation in high-reliability electronic components.

The SN74HC86PWR belongs to TI's 74HC logic family - engineered for low-power, wide-supply-voltage digital interfacing in industrial, automotive, and communications equipment where robustness and compatibility outweigh ultra-high-speed requirements.

FAQ

What is the maximum capacitive load SN74HC86PWR can drive while maintaining specified timing?

The SN74HC86PWR is characterized for optimal performance with ≤70 pF total load capacitance, including probe and trace contributions. Driving larger loads increases propagation delay and transition time - e.g., 100 pF raises tpd by ~30% at 6 V. For heavier loads, add a series resistor to limit output current within ±25 mA absolute maximum rating.

Can unused inputs on SN74HC86PWR be left floating?

No - unused inputs on SN74HC86PWR must be terminated to either VCC or GND to prevent undefined logic states, increased power consumption, and potential oscillation. A 10-kΩ pull-up or pull-down resistor is recommended for flexibility; direct connection is acceptable for permanently fixed logic levels.

Does SN74HC86PWR support 3.3 V operation with guaranteed timing performance?

Yes - SN74HC86PWR is fully specified at 3.3 V: propagation delay is 19 ns (max), transition time is 15 ns (max), and output voltages meet VOH ≥ 3.15 V and VOL ≤ 0.33 V under 4 mA load, all within –40°C to +85°C ambient.

What is the thermal resistance (RθJA) of SN74HC86PWR in its TSSOP-14 package?

The junction-to-ambient thermal resistance (RθJA) of SN74HC86PWR is 151.7°C/W, measured under JEDEC JESD51-2 conditions. This value assumes standard 2-layer board layout with minimal copper; adding thermal vias or ground-plane copper reduces effective RθJA by up to 30%.

How does SN74HC86PWR differ from SN74HCS86PWR in functional behavior?

SN74HC86PWR uses standard CMOS inputs sensitive to slow edges, while SN74HCS86PWR adds Schmitt-trigger inputs for hysteresis - enabling reliable operation with noisy or slowly transitioning signals. Both share identical pinout, supply range, and XOR logic function, but SN74HCS86PWR draws less quiescent current (2 µA vs. 20 µA).