SN74LV165APWG4

Shift Registers Overview

The SN74LV165APWG4 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 G4 confirms compliance with RoHS standards and specifies lead-free manufacturing. Confirm the PW package designation corresponds to the TSSOP-16 form factor required for the target PCB layout. Ensure the component matches the production data status indicated in the official datasheet revision history.

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. The TSSOP-16 package offers a compact footprint suitable for space-constrained designs. Consider the Ioff feature if the system requires safe operation during power-down states without external isolation components.

Shift Registers Part Context

This part belongs to the SN74LV165A family of parallel-load 8-bit shift registers manufactured by Texas Instruments. The 'G4' suffix indicates specific manufacturing attributes related to environmental compliance and packaging details defined by the manufacturer's standard nomenclature conventions.

Shift Registers Replacement Considerations

SN74LV165ADBR

Shift Registers FAQ

How does the SH/LD pin control data loading?

Parallel loading is enabled when the SH/LD input is held at a low level. When held high, parallel access 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. The functions of CLK and CLK INH are interchangeable.