SN74LS166AD

Shift Registers Overview

The SN74LS166AD is an 8-bit parallel-in serial-out shift register from the Texas Instruments 74LS logic family. It operates within a supply voltage range of 4.75 V to 5.25 V and features a propagation delay of 25 ns. The device supports asynchronous reset functionality and utilizes positive-edge clock triggering for data shifting. Designed for surface-mount applications, it is housed in a 16-pin SOIC-Narrow package with a standard operating temperature range of 0°C to +70°C.

Shift Registers Feature Summary

• Supports parallel-to-serial and serial-to-serial data conversion modes
• Includes dedicated asynchronous clear input for immediate state reset
• Utilizes push-pull output drivers for robust signal transmission

Shift Registers Applications

• Data acquisition systems requiring parallel input buffering
• Serial communication interface expansion circuits
• Digital control logic for sequential state management

Shift Registers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific ordering suffixes that may indicate packaging variations. Ensure the supplier provides valid traceability documentation to guarantee product integrity and adherence to specified electrical standards.

Shift Registers Selection Notes

Select this component for designs requiring low-power bipolar logic performance with high-speed shifting capabilities. The LS series offers improved power dissipation compared to standard TTL while maintaining compatible logic levels. Consider the SOIC package dimensions for PCB layout constraints and verify thermal requirements against the specified operating temperature limits.

Shift Registers Part Context

This part belongs to the SN74LS166A family of shift registers, designed for general-purpose digital logic applications. It serves as a key component in converting parallel data streams into serial formats for efficient transmission or processing within larger integrated circuit systems.

Shift Registers Replacement Considerations

SN74LS166ADR is a tape-and-reel variant of the same functional device.