74HCT4015D,118

Shift Registers Overview

The 74HCT4015D,118 is a dual 4-bit serial-in parallel-out shift register manufactured by NXP USA Inc. It belongs to the HCT logic series, utilizing CMOS technology for operation. The device integrates two independent shift registers within a single package, allowing for efficient data serialization and parallel output conversion. Designed for surface-mount applications, it features a standard SO package configuration suitable for automated assembly processes in electronic circuits requiring reliable digital signal processing.

Shift Registers Feature Summary

• Dual independent 4-bit shift register architecture
• Serial-to-parallel data conversion capability
• HCT logic family compatibility with TTL input levels

Shift Registers Applications

• Digital data serialization and deserialization
• Parallel output expansion in microcontroller systems
• General-purpose shift register functions in logic circuits

Shift Registers Procurement Notes

Verify the exact manufacturer designation as NXP USA Inc. or Nexperia, as corporate structures may affect part numbering. Confirm the specific suffix '118' corresponds to the intended reel packaging format. Ensure the component matches the HCT series specifications rather than HC variants. Cross-reference the datasheet revision date to confirm technical parameters align with current design requirements before procurement.

Shift Registers Selection Notes

Select this component when dual independent shift registers are required in a compact surface-mount form factor. The HCT series ensures compatibility with standard TTL logic levels, simplifying interface design with legacy digital systems. Consider the SO package constraints regarding thermal dissipation and board space. Verify that the operating voltage range meets the system's power supply specifications.

Shift Registers Part Context

This component is part of the widely used 74xx logic family, specifically the high-speed CMOS (HC) variant adapted for TTL-compatible inputs (HCT). It serves as a fundamental building block for sequential logic circuits. Similar parts include the 74HC4015 for pure CMOS input levels and other shift registers like the 74HC595 for different output configurations. The dual structure offers a space-saving alternative to using two separate single shift register ICs.

Shift Registers Replacement Considerations

Direct replacements must match the HCT series characteristics and dual 4-bit SIPO functionality. Verify pinout compatibility with the SO package. Alternative parts from other manufacturers should be checked for identical electrical specifications and logical behavior to ensure seamless integration without circuit redesign.