SN74LV8T595QPWRQ1

Shift Registers Overview

The SN74LV8T595-Q1 is an automotive-grade, 8-bit serial-in, parallel-out shift register with tri-state outputs and integrated logic-level shifting. It features a separate clock for the shift register and a storage register, allowing independent control of data shifting and output latching. The device supports a wide supply voltage range from 1.65V to 5.5V and includes 5.5V tolerant input pins. It provides up-translation capabilities from lower voltages (1.2V–3.3V) and down-translation from higher voltages (5.0V) to lower levels (1.8V–3.3V). The component is AEC-Q100 qualified for Grade 1 operation across a temperature range of -40°C to +125°C.

Shift Registers Feature Summary

• Integrated logic-level shifter supporting bidirectional voltage translation between 1.2V and 5.5V domains
• Latching logic with Power-On Reset circuitry ensuring known start-up behavior
• Wettable flank QFN package option facilitating automated optical inspection
• High ESD protection meeting AEC-Q100 HBM Level 2 and CDM Level C4B standards

Shift Registers Applications

• Digital signage systems
• Microcontroller I/O expansion
• Indicator LED control circuits

Shift Registers Procurement Notes

Verify the specific package variant (PW TSSOP or BQB WQFN) required for your design, as thermal characteristics and pinout details differ. Confirm that the wettable flank feature is necessary if utilizing AOI inspection processes. Ensure the selected part number suffix matches the desired packaging configuration. Cross-reference the AEC-Q100 qualification status to confirm automotive grade compliance for your target application environment.

Shift Registers Selection Notes

Select this component when designing systems requiring serial-to-parallel conversion with simultaneous voltage level translation. It is suitable for interfacing low-voltage microcontrollers with 5V peripherals or expanding I/O lines in automotive environments. Consider the thermal resistance values provided for the chosen package when calculating junction temperatures under load. Ensure input signal transition rates comply with specifications to prevent excessive power consumption.

Shift Registers Part Context

This device belongs to Texas Instruments' LVxT family of logic components, which are characterized by their ability to perform enhanced input voltage translation. The SN74LV8T595-Q1 specifically adapts standard shift register functionality for automotive use, incorporating robust ESD protection and reliable power-up states. It serves as a bridge between varying voltage domains while maintaining high-speed data transmission capabilities within automotive electrical constraints.

Shift Registers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing PCB footprints and signal timing requirements before considering alternative manufacturers. Ensure any replacement maintains the same AEC-Q100 qualification level and voltage translation capabilities.