SN74LS55D

Inverter Gates Overview

The SN74LS55D is a dual 4-input AND/NAND gate integrated circuit manufactured by Texas Instruments. It utilizes the standard 74LS logic family, operating within a supply voltage range of 4.75V to 5.25V. The device is housed in a 16-pin Small Outline Integrated Circuit (SOIC) package with a width of 3.90mm. Designed for commercial applications, it supports an operating temperature range from 0°C to 70°C. The component features push-pull outputs and provides a maximum low-level output current of 8mA.

Inverter Gates Feature Summary

• Dual configuration containing two independent four-input AND gates
• Standard TTL-compatible logic levels for reliable interfacing
• Push-pull output structure providing defined high and low states

Inverter Gates Applications

• Digital logic gating circuits requiring multi-input AND functionality
• Data selection and routing systems
• Control logic interfaces in industrial equipment

Inverter Gates Procurement Notes

Verify the manufacturer part number SN74LS55D against official Texas Instruments documentation to confirm the specific SOIC-16 package and lead-free status. Ensure the intended application environment remains within the specified 0°C to 70°C commercial temperature range. Confirm that the 4.75V to 5.25V power supply requirements align with the system design specifications before procurement.

Inverter Gates Selection Notes

Select this component when a dual four-input AND gate is required within a standard TTL logic framework. The SN74LS55D offers a compact surface-mount solution suitable for space-constrained designs. Consider the propagation delay characteristics typical of the LS family when evaluating timing constraints. Verify compatibility with existing 5V logic systems and ensure adequate thermal management for the operating environment.

Inverter Gates Part Context

This component belongs to the Texas Instruments 74LS series, representing a widely adopted line of low-power Schottky TTL logic devices. The SN74LS55D specifically addresses the need for complex gating functions in digital systems. Its standardized pinout and electrical characteristics facilitate easy integration into legacy and modern designs utilizing conventional transistor-transistor logic architectures.

Inverter Gates Replacement Considerations

Compatible substitutes include the SN74LS55DR variant, which shares identical electrical specifications but differs in tape-and-reel packaging. Other equivalents within the 74LS family may be considered if pin compatibility and logical function match the original design requirements.