SN74AUCH16244ZQLR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AUCH16244 is a 16-bit buffer/driver with 3-state outputs designed for mixed-mode signal operation. It operates at supply voltages from 0.8 V to 2.7 V, optimized for 1.8-V applications while being 3.6-V I/O tolerant. The device features sub-1-V operability and supports partial-power-down mode via Ioff circuitry. It includes bus-hold inputs to eliminate external pullup/pulldown resistors. Key electrical parameters include a maximum propagation delay of 1.8 ns at 1.8 V, ±8-mA output drive capability at 1.8 V, and a maximum ICC of 20 µA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Optimized for 1.8-V operation with 3.6-V I/O tolerance to support mixed-mode signal environments
• Integrated active bus-hold circuitry on data inputs to maintain valid logic states without external components
• Ioff circuitry enables partial-power-down mode by disabling outputs to prevent damaging backflow currents
• High ESD protection performance exceeding JESD standards for human-body, machine, and charged-device models

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 package suffix (e.g., ZQLR) against the manufacturer's current ordering information, as standard datasheets may list alternative packages like DGGR or DGVR. Confirm that the requested variant matches the required moisture sensitivity level and lead finish specifications for your assembly process. Ensure compatibility with the specified operating temperature range of -40°C to 85°C.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring high-density 16-bit buffering with mixed-voltage interfaces. It is suitable for applications needing low power consumption and robust input holding capabilities. Consider its 3.6-V I/O tolerance if interfacing with higher voltage domains while maintaining a lower core supply voltage.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to Texas Instruments' Widebus family, which focuses on high-density logic solutions. The SN74AUCH16244 specifically addresses the need for efficient 3-state drivers in complex digital systems. Its design prioritizes performance in low-voltage environments while maintaining compatibility with standard interface levels.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Consult the manufacturer's official replacement guide for direct substitutes. Verify pinout compatibility and electrical characteristics before swapping with other 16-bit buffers.