SN74HC166AIDREP

Shift Registers Overview

The SN74HC166AIDREP is an 8-bit parallel-load shift register from the Texas Instruments HC logic family. It operates on a single supply voltage ranging from 2 V to 6 V and features a 16-pin TSSOP package. The device supports serial-to-serial or serial-to-parallel data transfer modes with asynchronous reset functionality. It utilizes rising-edge triggered clocking for data shifting and is designed for surface-mount installation. The component functions as a single circuit element within electronic systems, providing push-pull outputs for reliable signal transmission across various industrial temperature ranges.

Shift Registers Feature Summary

• Supports parallel-load operations for simultaneous data entry into eight bits
• Provides serial output capability for cascading or sequential data processing
• Includes asynchronous reset input to clear all storage elements immediately
• Features high-speed CMOS technology for low power consumption and noise immunity

Shift Registers Applications

• Data acquisition systems requiring parallel-to-serial conversion
• Microcontroller interface circuits for expanding I/O capabilities
• Digital communication links utilizing serial data transmission protocols
• Memory expansion modules in embedded control architectures

Shift Registers Procurement Notes

Verify the complete part number including the suffix 'IDREP' to ensure correct package type and tape-and-reel configuration. Confirm that the procurement source provides official datasheets matching the SNx4HC166 specifications. Check for RoHS compliance documentation if required by your manufacturing standards. Ensure the supplier is an authorized distributor to guarantee component authenticity and traceability. Validate that the received units match the specified 16-pin TSSOP form factor before integration.

Shift Registers Selection Notes

Select this component when an 8-bit shift register with parallel load capability is required within the HC logic family. It is suitable for applications needing operation between 2 V and 6 V supply voltages. Consider this part for designs prioritizing surface-mount assembly via TSSOP packaging. Evaluate its performance against other HC series variants if specific speed or drive current requirements differ. Ensure compatibility with existing system logic levels and clock frequencies during the design phase.

Shift Registers Part Context

This component belongs to the SNx4HC166 family of 8-bit parallel-load shift registers manufactured by Texas Instruments. The HC designation indicates High-speed CMOS technology, offering improved performance over standard TTL equivalents. The 'A' variant often denotes specific electrical characteristics or revisions within the product line. The 'IDREP' suffix specifies the industry-standard TSSOP package and reel packaging format. This family is widely used in digital electronics for data manipulation and transmission tasks.

Shift Registers Replacement Considerations

Direct replacements include other SN74HC166 variants with compatible pinouts and electrical specifications. Verify that substitute parts maintain the same 16-pin TSSOP package dimensions for board compatibility. Ensure alternative components support the 2 V to 6 V operating voltage range. Check that replacement devices offer similar propagation delays and output drive currents. Confirm that any cross-reference maintains the parallel-load and asynchronous reset functionalities.