SN74LS166AN

Shift Registers Overview

The SN74LS166AN is an 8-bit parallel-in/serial-out shift register from the Texas Instruments SN74LS series. It features a serial data input, eight parallel data inputs, and a serial data output. The device operates with a supply voltage range of 4.75 V to 5.25 V and includes asynchronous clear functionality. It utilizes bipolar logic technology and is housed in a PDIP-16 package. The component supports a propagation delay of 25 ns and functions within a temperature range of 0°C to +70°C.

Shift Registers Feature Summary

• Supports parallel-to-serial data conversion for efficient interface applications
• Includes asynchronous clear input for immediate reset control
• Provides push-pull outputs for improved drive capability

Shift Registers Applications

• Data acquisition systems requiring parallel-to-serial conversion
• Digital display drivers needing serial data streams
• Communication interfaces utilizing shift register protocols

Shift Registers Procurement Notes

Verify the specific manufacturer part number against official datasheets to ensure compatibility with system requirements. Confirm that the PDIP-16 package and LS logic family align with design constraints. Check RoHS compliance status as indicated in current documentation. Ensure operating conditions match the specified voltage and temperature ranges before procurement.

Shift Registers Selection Notes

Select this component when an 8-bit shift register with parallel load capability is required in the LS logic family. Consider the PDIP-16 through-hole package for prototyping or legacy board designs. Evaluate the 25 ns propagation delay against system timing requirements. Verify power supply stability within the 4.75 V to 5.25 V range for reliable operation.

Shift Registers Part Context

This component belongs to the SN74LS166 family of shift registers manufactured by Texas Instruments. It is part of the broader 74xx logic series, specifically designed for TTL-compatible applications. The SN74LS166AN variant denotes the standard plastic DIP package version. It serves as a fundamental building block for digital logic circuits requiring data shifting operations.

Shift Registers FAQ

What is the function of the asynchronous clear input?

The asynchronous clear input immediately resets all flip-flops to a low state, independent of the clock signal.

Does the SN74LS166AN support serial-in/parallel-out operation?

No, the SN74LS166AN is designed for parallel-in/serial-out operation only.