SN74LV165ADG4

Shift Registers Overview

The SN74LV165ADG4 is a parallel-load, 8-bit shift register from the Texas Instruments SN74LV165A family. It operates on a supply voltage (VCC) ranging from 2 V to 5.5 V and supports mixed-mode voltage operation across all ports. The device features balanced CMOS push-pull outputs and includes clock-inhibit functionality alongside a complemented serial output (QH). Designed for partial-power-down applications, it utilizes Ioff circuitry to disable outputs and prevent damaging current backflow when powered down. The component is specified for an operating free-air temperature range of -40°C to 125°C.

Shift Registers Feature Summary

• Supports mixed-mode voltage operation on all ports
• Includes Ioff circuitry for partial-power-down mode operation
• 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 'DG4' corresponds to the specific package variant required for your design, as TI uses suffixes to denote package type and environmental compliance. Confirm the package dimensions against your PCB footprint requirements. Ensure the selected variant meets the thermal resistance specifications necessary for your application's ambient temperature conditions.

Shift Registers Selection Notes

Select this component when an 8-bit parallel-to-serial conversion with direct parallel load capability is required within a 2 V to 5.5 V system. Consider the SN74LV165ADG4 for designs needing mixed-voltage port compatibility and partial-power-down support via Ioff. Evaluate the thermal performance characteristics relative to the specific package body size available in the DG4 suffix configuration.

Shift Registers Part Context

This part belongs to the SN74LV165A series of parallel-load 8-bit shift registers manufactured by Texas Instruments. The LV designation indicates Low-Voltage CMOS technology compatible with standard logic families. The 'DG4' suffix identifies the specific package style and manufacturing revision within the broader SN74LV165A product line, which offers various package options including SOIC, SSOP, and VQFN.

Shift Registers Replacement Considerations

Direct substitutes include other SN74LV165A variants with different package suffixes such as SN74LV165AD or SN74LV165ADR, provided the pinout and electrical specifications remain identical. Verify that any replacement maintains the same 16-pin configuration and LV logic family characteristics.