SN74AUC16244DGGR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AUC16244DGGR is a 16-bit buffer/driver with 3-state outputs from the Texas Instruments Widebus family. It operates at supply voltages (VCC) ranging 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 with a maximum propagation delay of 2 ns. Packaged in a 48-pin TSSOP (DGG), it withstands ESD protection exceeding 2000-V human-body model.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Operates within a wide voltage range of 0.8 V to 2.7 V, specifically optimized for 1.8-V applications.
• Supports mixed-mode signal operation with 3.6-V I/O tolerance while powered by lower voltages.
• Includes Ioff circuitry to disable outputs during power-down, preventing damaging backflow current.
• Provides high-speed performance with a maximum propagation delay of 2 ns at 1.8 V.

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 ordering suffix 'DGGR' corresponds to the TSSOP-48 package with tape and reel packaging containing 2000 units per reel. Confirm the operating temperature range is -40°C to +85°C. Ensure compatibility with RoHS standards and check for the latest Package Option Addendum updates regarding material type and lead finish specifications before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring low-voltage operation between 0.8 V and 2.7 V. It is suitable for applications needing 3.6-V I/O tolerance for mixed-signal environments. Consider its sub-1-V operability and low power consumption of 20 μA max ICC for battery-powered or energy-efficient designs requiring high-density bus buffering.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AUC16244 series, part of Texas Instruments' Widebus family. It is designed to improve performance and density in digital logic circuits. The DGGR suffix indicates a 48-pin Thin-Shrink Small Outline Package (TSSOP) supplied in a tape and reel format for automated surface-mount assembly processes.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include SN74AUC16244DGVR (TVSOP package) and SN74AUC16244GQLR (VFBGA package). Verify pinout compatibility and thermal characteristics when switching packages. Ensure the replacement maintains the same 0.8-V to 2.7-V operating range and 3.6-V I/O tolerance requirements.

Buffers, Drivers, Receivers, Transceivers FAQ

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

The device includes Ioff circuitry that automatically disables the outputs when the device is powered down. This prevents damaging current from flowing back through the device into the disabled power rail.

What is the maximum input voltage tolerance?

The inputs are tolerant up to 3.6 V, allowing the device to interface with 3.6-V signals even when the VCC supply is as low as 0.8 V.