CD74ACT164BQAR

Shift Registers Overview

The CD74ACT164BQAR is an automotive-grade, 8-bit serial-in/parallel-out shift register manufactured by Texas Instruments. It utilizes a buffered input architecture and features push-pull outputs. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a typical propagation delay of 6 ns at 5 V with a 50 pF load. It is housed in a 14-WQFN (3x2.5 mm) package and functions reliably across an extended temperature range from -40°C to +125°C.

Shift Registers Feature Summary

• Automotive qualification compliant for reliable operation in vehicle environments
• Buffered inputs provide improved noise immunity and signal integrity
• SCR-latchup-resistant CMOS process ensures robust circuit protection

Shift Registers Applications

• Automotive data acquisition systems
• Vehicle instrumentation interfaces
• Embedded control modules requiring serial-to-parallel conversion

Shift Registers Procurement Notes

Verify the specific suffix 'BQAR' confirms the WQFN package and reel tape packaging configuration. Ensure the component meets AEC-Q100 standards if required for your specific automotive application tier. Confirm that the 4.5V to 5.5V operating voltage aligns with your system power rails before integration.

Shift Registers Selection Notes

Select this component when automotive reliability and latchup resistance are critical requirements. The buffered input design distinguishes it from standard unbuffered variants, offering better performance in noisy electrical environments. Consider the WQFN footprint constraints during PCB layout planning to ensure adequate thermal dissipation and mechanical stability.

Shift Registers Part Context

This part belongs to the SN74ACT164 family of 8-bit shift registers. It shares functional similarities with the SN74AHC164 but offers ACT-level speed and automotive-grade durability. The BQAR designation specifically identifies the automotive variant packaged in a compact WQFN form factor suitable for space-constrained electronic assemblies.

Shift Registers Replacement Considerations

The SN74ACT164BQARQ1 serves as a direct equivalent replacement within the same automotive grade and package type. Verify pin compatibility and electrical specifications against the original datasheet before substitution.