SN74LS165ADR

Shift Registers Overview

The SN74LS165ADR is an 8-bit parallel-load shift register from the Texas Instruments SN74LS series. It converts parallel data inputs into a serial output stream, facilitating data transmission in digital systems. The device operates within a supply voltage range of 4.75 V to 5.25 V and features a propagation delay of 25 ns. It is housed in a 16-pin SOIC package suitable for surface-mount applications. The component supports bipolar logic technology and functions as a single circuit with eight bits of storage capacity.

Shift Registers Feature Summary

• Parallel-to-serial data conversion capability for efficient signal transmission
• Asynchronous reset functionality to clear stored data immediately
• Serial input/output configuration enabling daisy-chain expansion

Shift Registers Applications

• Digital data acquisition systems requiring parallel input sampling
• Microcontroller interface circuits for expanding I/O capabilities
• Communication modules utilizing serial data protocols

Shift Registers Procurement Notes

Verify the specific suffix 'ADR' confirms the SOIC-16 surface mount package and reel packaging format. Ensure compatibility with standard 5V logic levels and bipolar LS family characteristics. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Cross-reference pinouts with the latest datasheet to prevent layout errors during PCB design implementation.

Shift Registers Selection Notes

Select this component when parallel-to-serial conversion is required within the SN74LS logic family constraints. It is appropriate for designs operating strictly at 5V with moderate speed requirements around 25 ns delay. Consider alternative LV or HCT families if lower power consumption or wider voltage ranges are necessary. Verify that the SOIC-16 footprint aligns with existing board space and assembly capabilities.

Shift Registers Part Context

This part belongs to the widely used SN74LS165 family of shift registers, designed for general-purpose digital logic applications. The 'A' variant typically denotes improved specifications over earlier versions, while 'DR' specifies the tape-and-reel surface mount packaging. It serves as a fundamental building block for serial communication interfaces in industrial and consumer electronics.

Shift Registers Replacement Considerations

SN74LS165ADRE4 is a verified equivalent part number offering identical electrical and functional specifications with potential minor manufacturing process updates.