SN74LVC244APWG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC244APWG4 is an octal buffer and line driver from Texas Instruments, belonging to the LVC logic family. It features eight non-inverting channels with three-state outputs, designed for operation within a supply voltage range of 1.65 V to 3.6 V. The device supports asynchronous communication between data buses and accepts input voltages up to 5.5 V, enabling compatibility with mixed-mode signal operations. It is housed in a 20-pin SOIC package and operates across a temperature range of -40°C to +125°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight independent non-inverting buffer channels with three-state output control for efficient bus management.
• Supports mixed-mode signal operations, allowing 5V tolerant inputs while operating on lower voltage supplies.
• Includes Ioff functionality to prevent current backflow during partial power-down or live insertion scenarios.

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous data bus buffering and driving
• Clock distribution and timing signal conditioning
• Memory module address and data line drivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'PWG4' corresponds to the SOIC-20 package and lead-free RoHS compliance status. Confirm the manufacturer date code and lot traceability against the latest datasheet revision history. Ensure the component matches the active lifecycle status for long-term availability planning.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when low-voltage operation between 1.65V and 3.6V is required alongside high-speed performance. It is suitable for designs needing 5V input tolerance without external level shifting. Consider the SOIC-20 package for surface-mount assembly constraints and thermal requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVC244A series of octal buffers. It shares functional similarities with other LVC family members but is distinct in its specific package configuration and manufacturing revision indicated by the G4 suffix. It serves as a standard interface solution for low-power digital systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC244ADWG4: Alternative variant in the same SOIC-20 package with identical electrical characteristics and functionality.

Buffers, Drivers, Receivers, Transceivers FAQ

Does the SN74LVC244APWG4 support 5V input signals?

Yes, the device inputs are rated to accept voltages up to 5.5V, allowing it to interface with 5V logic devices even when powered by lower voltages.

What is the purpose of the Ioff feature?

Ioff allows the outputs to remain in a high-impedance state when the device is partially powered down, preventing back-driving of the power supply through the inputs.