SN74HC165DG4

Shift Registers Overview

The SN74HC165DG4 is an 8-bit parallel-load shift register from the Texas Instruments SN74HC165 series. It features a CMOS logic type and operates within a supply voltage range of 2 V to 6 V. The device utilizes a positive-edge triggered clock mechanism for serial data shifting. It is housed in a SOIC-16 surface-mount package and supports an operating temperature range from -40°C to +125°C. Key electrical characteristics include propagation delays of 150 ns, 30 ns, and 26 ns under varying conditions.

Shift Registers Feature Summary

• Supports parallel-to-serial data conversion with dedicated parallel load capability
• Features a single serial output line for cascading or system integration
• Includes a parallel enable input for controlled data loading operations

Shift Registers Applications

• Digital systems requiring expansion of parallel input lines via serial interfaces
• Key matrix scanning applications for keyboard or control panel inputs
• Data acquisition systems converting multiple sensor states to serial streams

Shift Registers Procurement Notes

Verify the specific suffix 'DG4' against the manufacturer's current datasheet to confirm pinout compatibility and RoHS status. Ensure the SOIC-16 package dimensions match your PCB footprint requirements. Cross-reference the part number with official distributor catalogs to validate availability and lead times before finalizing procurement plans.

Shift Registers Selection Notes

Select this component when an 8-bit parallel input interface is required with minimal serial output lines. The HC logic family offers standard CMOS performance suitable for general-purpose digital logic. Consider the wide operating temperature range if the application involves industrial or automotive environments. Verify power supply constraints align with the 2 V to 6 V operational window.

Shift Registers Part Context

This part belongs to the SN74HC165 family of 8-bit parallel-load shift registers manufactured by Texas Instruments. The HC designation indicates High-speed CMOS technology, providing faster switching speeds compared to legacy LS series devices. The DG4 suffix typically denotes a specific tape-and-reel packaging configuration compliant with RoHS standards.

Shift Registers Replacement Considerations

Compatible substitutes include the SN74HC165DR and SN74HC165PWR. Verify that alternative packages such as SOIC or TSSOP maintain identical pin configurations for direct replacement without circuit modification.