SN74LV165ANSR

Shift Registers Overview

The SN74LV165ANSR 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 a complemented 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 NS suffix corresponds to the SOIC-16 package variant as specified in the datasheet. Confirm RoHS compliance status and ensure the operating temperature range requirements align with the -40°C to 125°C specification provided in the recommended operating conditions.

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 accounts for the specific thermal resistance values associated with the SOIC-16 package if high ambient temperatures are expected.

Shift Registers Part Context

This part belongs to the SN74LV165A family of parallel-load 8-bit shift registers. The 'NS' suffix indicates the standard plastic small-outline package (SOIC), which provides a 16-pin configuration suitable for surface-mount assembly in general-purpose logic applications.

Shift Registers Replacement Considerations

SN74LV165ADBR

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 held high, parallel loading is inhibited, allowing the device to shift data serially.

What is the function of the CLK INH pin?

The CLK INH pin serves as a clock inhibit input. Clocking occurs when CLK INH is held low and the CLK input transitions from low to high.