SN74AVC16244DGVR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AVC16244DGVR is a 16-bit buffer and driver with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 1.4 V to 3.6 V, specifically designed for 1.65 V to 3.6 V applications. The device features overvoltage-tolerant inputs and outputs, supporting mixed-voltage-mode data communications. It includes Ioff circuitry for partial-power-down mode operation to prevent damaging current backflow. The package is TVSOP-48.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Overvoltage-tolerant inputs and outputs enable mixed-voltage-mode data communications without external level shifters.
• DOC (Dynamic Output Control) circuit dynamically changes output impedance to reduce noise during signal transitions without speed degradation.
• Ioff circuitry supports partial-power-down mode, disabling outputs to prevent damaging current backflow when the device is powered down.

Buffers, Drivers, Receivers, Transceivers Applications

• 3-state memory address drivers
• Clock drivers
• Bus-oriented receivers and transmitters

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the ordering suffix 'DGVR' corresponds to the TVSOP-48 package and tape-and-reel packaging configuration. Confirm RoHS compliance and lead finish specifications match project requirements. Ensure the operating temperature range of -40°C to 85°C aligns with the target environment. Cross-reference the datasheet revision date to ensure all electrical characteristics are current.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for high-density bus applications requiring low propagation delay and noise reduction. The DOC feature provides dynamic drive capability equivalent to standard outputs with ±24 mA at 2.5 V VCC. Consider the 1.4 V minimum operating voltage if interfacing with lower voltage logic domains compared to standard 3.3 V devices.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments Widebus family of AVC logic. It is functionally similar to other 16-bit buffers in the series but distinguished by its specific DOC implementation and overvoltage tolerance. The DGVR suffix indicates the TVSOP-48 plastic small-outline package variant.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74AVC16244DGGR (TSSOP-48 package)

Buffers, Drivers, Receivers, Transceivers FAQ

How does the DOC circuit improve performance?

The DOC circuit dynamically lowers output impedance during signal transitions to effectively drive the load, then raises impedance to reduce noise, maintaining speed while minimizing electromagnetic interference.

What is the purpose of the Ioff circuitry?

The Ioff circuitry disables the outputs when the device is powered down, preventing damaging current backflow through the device into the power supply rails.