SN74AHCT86N

Overview

The SN74AHCT86N is a quadruple 2-input exclusive-OR gate manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL-compatible inputs, enabling effective voltage translation from 3.3 V to 5 V. The device provides balanced output drive with low-level and high-level output currents of 8 mA each. Propagation delay ranges from 1 ns to 9 ns depending on load capacitance and temperature. It is housed in a 14-pin PDIP package and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• TTL-voltage compatible inputs allow for direct interfacing with legacy logic families.
• Low-drive CMOS architecture minimizes output ringing and overshoot on bus interfaces.
• Enhanced electrostatic discharge protection exceeds JESD 22 standards.

Applications

• Server systems
• Network switches
• Telecom infrastructures

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current Package Option Addendum to confirm active production status and lead time requirements. Ensure the procurement channel sources components directly from authorized distributors to guarantee authenticity and traceability. Confirm RoHS compliance and material type specifications match project environmental constraints before finalizing orders.

Selection Notes

Select this component when TTL input compatibility is required alongside CMOS performance characteristics. The AHCT series is specifically designed for 5 V applications where signal translation from lower voltage domains is necessary. Consider the PDIP package for through-hole prototyping or environments requiring robust mechanical mounting compared to surface-mount alternatives.

Part Context

This part belongs to the SNx4AHCT86 family of quadruple 2-input exclusive-OR gates. The 'SN74' prefix indicates commercial grade operation, while the 'AHCT' designation specifies advanced high-speed CMOS technology with TTL-compatible inputs. This family serves as a bridge between older TTL logic standards and modern CMOS circuitry.

Replacement Considerations

SN74AHCT86DR

FAQ

How does the SN74AHCT86N handle voltage translation?

The lowered switching thresholds accommodate TTL input levels (VIL = 0.8 V, VIH = 2 V), making the device suitable for translating signals up from 3.3 V to 5 V.

What is the purpose of the slow edge rates in this device?

The slow edge rates are designed to reduce output ringing and minimize overshoot and undershoot, which is beneficial for bus interface applications.