SN74AUC16244DGVR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AUC16244DGVR is a 16-bit buffer/driver with 3-state outputs from the Texas Instruments Widebus family. It operates at supply voltages from 0.8 V to 2.7 V, optimized for 1.8-V operation. The device features symmetrical active-low output-enable inputs and supports partial-power-down mode via Ioff circuitry. It provides up to ±8-mA output drive at 1.8 V and achieves a maximum propagation delay of 2 ns at 1.8 V. Packaged in a 48-pin TVSOP (DGV) with tape-and-reel shipping.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation by being 3.6-V I/O tolerant while operating at sub-1-V logic levels.
• Includes Ioff circuitry to disable outputs during power-down, preventing damaging current backflow.
• Configurable as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer using dedicated OE pins.

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 specific DGV package designation and TVSOP form factor against schematic footprints. Confirm that the design accommodates the 3.6-V I/O tolerance rating if interfacing with higher voltage domains. Ensure the application utilizes the Ioff feature correctly to manage partial-power-down states without external pull-up resistors on the OE pins beyond standard recommendations.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when low-voltage operation below 1.8 V is required alongside high-density bus driving capabilities. The device is suitable for applications needing fast switching speeds under 2 ns at 1.8 V. Consider the TVSOP package constraints regarding thermal dissipation and board space compared to TSSOP alternatives.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AUC16244 series within the AUC logic family, designed for ultra-low voltage applications. It serves as a high-performance alternative to standard CMOS buffers in portable electronics and battery-powered systems requiring efficient power management and signal integrity across wide buses.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74AUC16244DGGR (TSSOP package)

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle partial-power-down scenarios?

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

What is the input voltage tolerance relative to the supply voltage?

The inputs are rated for 3.6 V regardless of the VCC level, allowing the device to interface with 3.3-V or 5-V logic signals even when operating at lower supply voltages like 1.8 V.