SN74LV165ADR

Shift Registers Overview

The SN74LV165ADR is a parallel-load, 8-bit shift register from Texas Instruments 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. The device includes a clock-inhibit function and provides both complemented serial output QH and non-inverted serial output QH. 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

• Supports mixed-mode voltage operation across all ports
• Includes Ioff circuitry for partial-power-down applications
• Features balanced CMOS push-pull outputs

Shift Registers Applications

• Increasing the number of inputs on a microcontroller

Shift Registers Procurement Notes

Verify that the ordering suffix 'ADR' corresponds specifically to the SOIC-16 package with reel packaging as indicated in distributor listings. Confirm RoHS compliance status and ensure the component matches the SN74LV165A family specifications regarding voltage ranges and thermal characteristics before procurement.

Shift Registers Selection Notes

Select this component when an 8-bit parallel-to-serial conversion is required within a 2 V to 5.5 V supply range. Ensure the design accommodates the specific timing requirements for setup and hold times at the chosen operating voltage. Consider the thermal resistance values if high ambient temperatures are expected.

Shift Registers Part Context

This part belongs to the SN74LV165A series of parallel-load 8-bit shift registers manufactured by Texas Instruments. The 'ADR' suffix typically denotes the SOIC-16 package variant with tape-and-reel packaging. It is part of the broader LV logic family designed for low-voltage CMOS applications.

Shift Registers Replacement Considerations

SN74LV165AD

Shift Registers FAQ

How does the SH/LD input control data loading?

Parallel loading is enabled when the SH/LD input is held low. When SH/LD is high, parallel inputs are inhibited, allowing serial shifting or no change depending on clock states.

What is the function of the CLK INH pin?

The CLK INH pin serves as a clock inhibit input. Clocking occurs when CLK is low and CLK INH transitions from low to high, or vice versa, allowing flexible clocking configurations.