SN74AHCT86PWR

Updated: 2026-07-15

Overview

The SN74AHCT86PWR is a quad 2-input XOR gate integrated circuit (IC) manufactured by Texas Instruments. It is part of the AHCT family, which combines high-speed performance with low power consumption, making it suitable for a wide range of digital logic applications. The device operates at a supply voltage of 4.5V to 5.5V, making it compatible with TTL (Transistor-Transistor Logic) levels. Its compact TSSOP (Thin Shrink Small Outline Package) form factor is ideal for space-constrained designs. The SN74AHCT86PWR is widely used in industrial automation, consumer electronics, and communication systems. Its ability to perform XOR operations efficiently makes it a key component in arithmetic logic units (ALUs), parity checkers, and other digital circuits. The IC is designed to meet stringent industry standards, ensuring reliability and performance in demanding environments.

Structure and Working Principle

The SN74AHCT86PWR consists of four independent XOR gates, each with two inputs and one output. The XOR (exclusive OR) gate produces a high output only when the inputs are different. This functionality is achieved through a combination of CMOS transistors, which are arranged to minimize power dissipation while maintaining high-speed operation. Internally, the IC features advanced CMOS technology, which provides a balance between speed and power efficiency. The input stages are designed to be compatible with TTL logic levels, allowing seamless integration with older systems. The output stages are buffered to ensure strong drive capability, enabling the IC to interface with other logic families or drive capacitive loads effectively.

Key Features

The SN74AHCT86PWR offers several notable features, including a wide operating voltage range of 4.5V to 5.5V, which makes it versatile for various applications. It has a typical propagation delay of 6.5 ns, ensuring fast response times for high-speed logic operations. The device also features low power consumption, with a typical ICC (supply current) of 1 μA per gate at room temperature. Another key feature is its robust noise immunity, which is achieved through careful design of the input and output stages. The IC is also RoHS compliant, meeting environmental regulations for lead-free manufacturing. Its TSSOP-14 package provides a compact footprint, making it suitable for high-density PCB layouts.

Application Areas

The SN74AHCT86PWR is commonly used in digital systems where XOR logic is required. Typical applications include arithmetic circuits, such as adders and subtractors, where XOR gates are used to generate sum bits. It is also employed in parity generators and checkers for error detection in data transmission systems. In consumer electronics, the IC can be found in devices like remote controls, gaming consoles, and audio equipment. Industrial applications include automation systems, where it is used for signal conditioning and control logic. The device's compatibility with TTL levels makes it a popular choice for legacy system upgrades and hybrid designs.

Maintenance and Precautions

To ensure optimal performance and longevity of the SN74AHCT86PWR, it is important to follow proper handling and storage procedures. The IC is sensitive to electrostatic discharge (ESD), so it should be stored in anti-static packaging and handled with grounded wrist straps. Avoid exposing the device to moisture or extreme temperatures, as this can damage the internal circuitry. During operation, ensure that the supply voltage does not exceed the specified range (4.5V to 5.5V). Overvoltage can cause permanent damage to the IC. Additionally, avoid connecting the outputs directly to ground or the supply voltage, as this can lead to excessive current draw and potential failure.

B2B Procurement Guide

When procuring the SN74AHCT86PWR in bulk, consider factors such as lead time, supplier reliability, and pricing. Texas Instruments is the primary manufacturer, but authorized distributors like Digi-Key, Mouser, and Arrow Electronics also stock the device. Pricing typically ranges from $0.50 to $1.50 per unit, depending on order quantity and market conditions. It is advisable to request samples for testing before placing large orders, especially if the IC will be used in critical applications. Verify the packaging type (TSSOP-14) and ensure that the supplier provides RoHS compliance documentation. For long-term projects, consider negotiating volume discounts or establishing a supply chain agreement to secure consistent availability.