SN74LV165ADGVR

Shift Registers Overview

The SN74LV165A is a parallel-load, 8-bit shift register designed for VCC operation between 2 V and 5.5 V. It features eight individual direct data inputs enabled by a low level at the shift/load (SH/LD) input. When clocked with SH/LD high and CLK INH low, data shifts toward the serial output QH. The device includes a clock-inhibit function and a complemented serial output, Q̅H. It supports mixed-mode voltage operation on all ports and incorporates Ioff circuitry to disable outputs during partial-power-down mode, preventing damaging current backflow.

Shift Registers Feature Summary

• Parallel-load capability via dedicated direct data inputs activated by the shift/load pin
• Clock-inhibit function allowing flexible control over data shifting operations
• Ioff circuitry enables partial-power-down mode to prevent output backflow currents

Shift Registers Applications

• Increasing the number of inputs available to a microcontroller
• Bus interface applications requiring mixed-mode voltage operation
• Input expansion systems utilizing shift registers

Shift Registers Procurement Notes

Verify the specific package variant required, as the SN74LV165A family includes multiple options such as SOIC, SSOP, TSSOP, TVSOP, VQFN, and WQFN. Confirm that the selected part matches the thermal and physical constraints of the target design. Ensure compatibility with the intended supply voltage range and operating temperature specifications before finalizing procurement.

Shift Registers Selection Notes

Select this component when expanding digital input lines for a processor or controller system. It is suitable for designs requiring balanced CMOS push-pull outputs and mixed-voltage port operation. Consider the maximum propagation delay and capacitive load limits when designing for high-speed signal integrity. Verify that the chosen package provides adequate thermal dissipation for the application environment.

Shift Registers Part Context

This device belongs to the Texas Instruments SN74LV series of logic components. It functions as an 8-bit shift register with parallel loading capabilities. The LV series is characterized by its wide supply voltage range and compatibility with various logic families, making it a standard choice for general-purpose digital signal processing and interface tasks in embedded systems.

Shift Registers Replacement Considerations

Check for SN74LV165ADWR or other package variants within the same SN74LV165A family if different footprint requirements exist. Ensure any substitute maintains the 8-bit parallel-load architecture and compatible voltage specifications.