Texas Instruments

SN74HC165D

SN74HC165D Description

The SN74HC165D from Texas Instruments is an 8-bit parallel-load shift register designed for high-speed data transfer applications. Housed in a compact 16-SOIC package, this surface-mount IC operates within a 2V to 6V supply range, making it compatible with a variety of logic levels. It features complementary outputs and supports parallel or serial-to-serial data conversion, enabling flexible integration into digital systems. With ROHS3 compliance and REACH unaffected status, it meets stringent environmental standards while maintaining high reliability.

SN74HC165D Features

• 8-Bit Parallel-Load Shift Register: Efficiently handles parallel data input and serial output conversion.
• Wide Voltage Range (2V–6V): Ensures compatibility with TTL and CMOS logic families.
• Complementary Outputs: Provides both true and inverted outputs for enhanced design flexibility.
• High-Speed Operation: Optimized for applications requiring rapid data shifting and storage.
• Moisture Sensitivity Level (MSL 1): Suitable for extended storage and handling without moisture protection.
• Single-Element Design: Simplifies PCB layout and reduces component count compared to multi-element alternatives.

SN74HC165D Applications

• Data Acquisition Systems: Ideal for expanding input ports in microcontrollers or FPGAs.
• Serial-to-Parallel Conversion: Used in industrial control systems for sensor data aggregation.
• Keyboard/Button Matrix Scanning: Efficiently scans multiple inputs in embedded user interfaces.
• LED Display Drivers: Enables multiplexing for large LED arrays with minimal GPIO usage.
• Digital Signal Processing (DSP): Facilitates buffering and serialization of parallel data streams.

Conclusion of SN74HC165D

The SN74HC165D stands out for its versatility, reliability, and ease of integration, making it a preferred choice for engineers designing high-performance digital systems. Its wide voltage range, compact footprint, and robust environmental compliance ensure suitability for industrial, automotive, and consumer electronics applications. For projects requiring efficient parallel-to-serial conversion or input expansion, this shift register delivers exceptional performance with minimal design overhead.