SN74HC166AIDRQ1

Shift Registers Overview

The SN74HC166AIDRQ1 is an automotive-grade, 8-bit parallel-load shift register from Texas Instruments' HC logic family. It operates on a single supply voltage ranging from 2 V to 6 V and features serial-to-serial/parallel output modes. The device utilizes a 16-pin TSSOP surface-mount package with dimensions of 5 mm x 4.4 mm x 1.15 mm. It supports asynchronous reset and rising-edge triggered clocking within an operating temperature range of -40 °C to +85 °C.

Shift Registers Feature Summary

• Provides eight-bit data shifting capability with parallel load functionality for efficient data handling in serial communication interfaces.
• Features asynchronous reset input to clear all flip-flops independently of the clock signal, ensuring reliable system initialization.
• Designed for automotive applications with robust performance characteristics suitable for harsh environmental conditions.

Shift Registers Applications

• Automotive serial data acquisition systems
• Parallel-to-serial conversion in vehicle control modules
• Input expansion for microcontroller-based automotive interfaces

Shift Registers Procurement Notes

Verify that the specific part number suffix matches the required automotive qualification standards and package variant. Confirm the manufacturer source is authorized to ensure component authenticity and traceability. Check for any specific ordering suffixes that may indicate tape-and-reel packaging or extended temperature ranges distinct from standard commercial grades.

Shift Registers Selection Notes

Select this component when designing automotive circuits requiring 8-bit shift register functionality with parallel load capabilities. Ensure the design accommodates the 2 V to 6 V supply voltage range and the TSSOP-16 footprint constraints. Consider the -40 °C to +85 °C operating temperature range against the specific environmental requirements of the target application.

Shift Registers Part Context

This device belongs to the SNx4HC166 family of 8-bit parallel-load shift registers. It shares functional similarities with other HC series logic devices but is specifically qualified for automotive use. The family typically includes variants with different package options and temperature ratings, catering to diverse industrial and automotive integration needs.

Shift Registers Replacement Considerations

SN74HC166PW

Shift Registers FAQ

What is the trigger type for the SN74HC166AIDRQ1?

The device uses a rising-edge triggered clock mechanism for data shifting operations.

Does the SN74HC166AIDRQ1 support bidirectional shifting?

No, the device supports unidirectional shifting only.