SN74H54N

Overview

The SN74H54N is a high-speed CMOS logic gate manufactured by Texas Instruments, housed in a 14-pin PDIP package. It implements an AND-OR-Invert (AOI) function with two 2-input AND gates feeding a single OR-invert stage. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a wide operating temperature range from -40°C to +85°C. It features standard TTL-compatible inputs and CMOS outputs, ensuring compatibility with various digital systems while maintaining low power consumption typical of the HCT series.

Feature Summary

• Implements complex AND-OR-Invert logic functionality in a single integrated circuit
• Provides TTL-compatible input levels for seamless integration with legacy digital systems
• Utilizes high-speed CMOS technology to ensure efficient operation and reduced power dissipation

Applications

• Digital logic circuits requiring combined AND-OR inversion functions
• Microprocessor interface designs utilizing standard logic families
• General-purpose combinatorial logic applications in industrial control systems

Procurement Notes

Verify the specific manufacturer marking and date code on the component body to confirm authenticity. Ensure the ordering suffix matches the required package type and temperature grade. Cross-reference the datasheet revision number to guarantee electrical parameter compliance. Confirm RoHS status if environmental regulations apply to your assembly process. Request original manufacturer documentation for final technical validation before production use.

Selection Notes

Select this component when a dedicated AND-OR-Invert gate is required to reduce board space and part count. Consider the HCT series for direct compatibility with existing TTL logic interfaces without level shifting. Evaluate the PDIP-14 package constraints against available PCB real estate and thermal requirements. Compare propagation delays against system timing budgets to ensure signal integrity at intended switching frequencies.

Part Context

This component belongs to the Texas Instruments 74H series of high-speed CMOS logic devices. The 74H family bridges the performance gap between standard TTL and earlier CMOS technologies, offering faster switching speeds than standard HC/HCT variants while maintaining robust noise immunity. The SN74H54N specifically addresses design needs for complex gating structures that would otherwise require multiple discrete gates.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.