SN74LV165ADRE4

Shift Registers Overview

The SN74LV165ADRE4 is a parallel-load, 8-bit shift register from the Texas Instruments SN74LV165A family. It operates within a supply voltage range of 2 V to 5.5 V and supports mixed-mode voltage operation on all ports. The device features balanced CMOS push-pull outputs and includes circuitry for partial-power-down applications via Ioff. It provides eight individual direct data inputs enabled by a low level at the shift/load input, along with a clock-inhibit function and a complemented serial output.

Shift Registers Feature Summary

• Supports mixed-mode voltage operation across all ports
• Includes circuitry for partial-power-down mode using Ioff
• Features balanced CMOS push-pull outputs
• Provides clock-inhibit functionality

Shift Registers Applications

• Increasing the number of inputs on a microcontroller

Shift Registers Procurement Notes

Verify that the ordering suffix 'E4' corresponds to the specific package and environmental compliance requirements defined in the manufacturer's current orderable addendum. Confirm the physical package dimensions match the design constraints, as the base part number covers multiple package options including SOIC, SSOP, TSSOP, and others. Ensure the procurement source provides documentation confirming the production data status and revision level.

Shift Registers Selection Notes

Select this component when an 8-bit parallel-to-serial conversion is required with mixed-voltage interface capabilities. The LV series is suitable for designs needing operation between 2 V and 5.5 V. Consider the Ioff feature if the system requires partial power-down modes to prevent backflow currents. Verify that the output drive strength and capacitive load limits align with the downstream circuit requirements.

Shift Registers Part Context

This part belongs to the SN74LV165A family of parallel-load 8-bit shift registers. The 'DRE4' suffix indicates a specific package variant, typically associated with the SOIC or similar surface-mount packages within the broader product line. The family is designed for low-drive CMOS applications where output ringing is a concern, offering slow-edge rates to minimize overshoot and undershoot.

Shift Registers Replacement Considerations

Direct substitutes include other SN74LV165A variants with different package suffixes (e.g., SN74LV165ADR, SN74LV165ADBR) provided the pinout and electrical characteristics remain identical. Verify that any replacement maintains the same logic family voltage range and Ioff specifications.