SN74LV164AQWBQARQ1

Shift Registers Overview

The SN74LV164AQWBQARQ1 is an automotive-grade, 8-bit parallel-out serial shift register from Texas Instruments. It operates within a supply voltage range of 2 V to 5.5 V and supports mixed-mode voltage operation on all ports. The device features NAND-gated serial inputs (A and B) and an asynchronous clear input. It is housed in a 14-pin WQFN package with dimensions of 3.00 mm by 2.50 mm. The component meets AEC-Q100 Grade 1 standards for temperatures between -40°C and +125°C.

Shift Registers Feature Summary

• Supports live insertion, partial power-down mode, and back-drive protection via Ioff circuitry
• Enables mixed-mode voltage operation across all ports
• Provides latch-up performance exceeding 250 mA per JESD 17 specification

Shift Registers Applications

• Output expansion
• LED matrix control
• 7-segment display control

Shift Registers Procurement Notes

Verify the specific ordering suffix 'QWBQARQ1' against the manufacturer's current orderable addendum to confirm packaging details and material specifications. Ensure the procurement channel sources parts directly from authorized distributors to guarantee authenticity and compliance with automotive quality standards.

Shift Registers Selection Notes

Select this component for designs requiring robust automotive reliability and wide voltage compatibility. The LV logic family ensures low power consumption while maintaining sufficient drive capability for standard loads. Verify that the system clock frequencies remain within the specified propagation delay limits for the chosen supply voltage.

Shift Registers Part Context

This part belongs to the SN74LV164A-Q1 series, which are automotive-qualified versions of standard 8-bit shift registers. The 'Q1' designation indicates adherence to AEC-Q100 stress test guidelines for automotive electronics. The 'BQA' suffix identifies the specific WQFN 14-pin package variant used in this configuration.

Shift Registers Replacement Considerations

Catalog version SN74LV164A serves as the non-automotive equivalent. SN74AHC164 offers similar functionality but may differ in electrical characteristics and qualification standards.