SN74HC166NSR

Shift Registers Overview

The SN74HC166NSR is an 8-bit parallel-load shift register from the Texas Instruments SNx4HC166 family. It operates within a supply voltage range of 2V to 6V and supports an operating temperature range of -55°C to 125°C. The device features synchronous loading, direct overriding clear, and serial-to-serial/parallel output modes. It utilizes a 16-pin NS (SOP) package with dimensions of 6.20mm by 5.30mm.

Shift Registers Feature Summary

• Provides parallel-to-serial conversion capabilities for data expansion
• Features synchronous load functionality controlled by the SH/LD input
• Includes a direct overriding clear input to reset all flip-flops

Shift Registers Applications

• Increasing the number of inputs or outputs connected to a microcontroller
• Parallel-to-serial data conversion in digital systems
• General-purpose I/O expansion using simple GPIO pins

Shift Registers Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm RoHS compliance status and lead finish specifications against current manufacturer documentation. Ensure the component meets the intended environmental operating conditions before integration into the final design.

Shift Registers Selection Notes

Select this component when an 8-bit shift register with parallel load capability is required. It is suitable for applications needing TTL-compatible CMOS inputs and low power consumption. Verify that the supply voltage and operating temperature range align with system requirements.

Shift Registers Part Context

This part belongs to the SNx4HC166 series of 8-bit parallel-load shift registers manufactured by Texas Instruments. The series includes various package options such as SOIC, SSOP, PDIP, and TSSOP. The HC logic family ensures compatibility with standard CMOS and TTL logic levels.

Shift Registers Replacement Considerations

SN74HC166DRG4