SN74AUCH32244GKER

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AUCH32244GKER is a 32-bit buffer/driver with 3-state outputs from the Widebus+ family. It operates at VCC voltages from 0.8 V to 2.7 V, optimized for 1.65-V to 1.95-V operation. The device provides symmetrical active-low output-enable inputs and supports mixed-mode signal operation with 3.6-V I/O tolerance. 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 40 µA. It features bus hold on data inputs and Ioff circuitry for partial-power-down mode.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Optimized for 1.8-V operation with 3.6-V I/O tolerance for mixed-mode environments
• Active bus-hold circuitry maintains valid logic states on unused or undriven inputs
• Ioff circuitry disables outputs to prevent damaging current backflow during power-down
• High ESD protection performance exceeding JESD 22 standards

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 GKE suffix corresponds to the LFBGA package and tape-and-reel shipping configuration. Confirm the operating temperature range matches the application requirements of -40°C to +85°C. Ensure design compatibility with the specified 0.8-V to 2.7-V supply voltage limits and 3.6-V input/output tolerance levels.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high-density 32-bit buffering is required in low-voltage systems. It is suitable for designs needing sub-1-V operability and mixed-mode signal interfacing. Consider its bus-hold feature if external pull-up or pull-down resistors are undesirable. Verify that the 3.6-V I/O tolerance meets the interface requirements of connected components.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to Texas Instruments' Widebus+ family, designed for improved performance and density in digital logic applications. It serves as a specialized solution for 32-bit data paths where low power consumption and fast switching speeds are critical. The device integrates multiple 4-bit buffers into a single package to simplify board layout.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for other members of the AUC series or Widebus+ family with compatible pinouts and electrical characteristics. Ensure any substitute supports the same 0.8-V to 2.7-V VCC range and 3.6-V I/O tolerance. Verify package dimensions and thermal properties match the existing footprint.