SN74ABT541BNSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ABT541B is an octal buffer and line driver featuring three-state outputs, manufactured using Texas Instruments' EPIC-IIB BiCMOS technology. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range from -40 °C to 85 °C. The device provides high-drive capabilities with output currents up to -32 mA for high-level and 64 mA for low-level states. It includes dual active-low output enable inputs (OE1 and OE2) that function as a two-input AND gate, ensuring all outputs enter a high-impedance state if either input is high.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• EPIC-IIB BiCMOS design significantly reduces power dissipation compared to standard technologies.
• Latch-up performance exceeds 500 mA per JEDEC Standard JESD-17.
• Inputs and outputs are positioned on opposite sides of the package to facilitate printed circuit board layout.
• Maintains a high-impedance state during power-up and power-down when VCC is between 0 and 2.1 V.

Buffers, Drivers, Receivers, Transceivers Applications

• Driving bus lines in digital systems
• Buffering memory address registers
• Line driving applications requiring high current capability

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant (e.g., DB, DW, NS, PW) against the required footprint and thermal constraints. Confirm RoHS compliance status and lead finish options such as NIPDAU. Ensure the ordering suffix matches the desired reel or tube quantity. Check for automotive (Q1) or enhanced product (EP) versions if higher reliability standards are required for the application environment.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring high-speed buffering with significant drive strength. The ABT series offers faster propagation delays than HC or HCT families while maintaining CMOS compatibility. Consider the dual enable inputs for complex bus arbitration logic. Evaluate thermal impedance values for the chosen package type if high power dissipation is expected during continuous operation.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74ABT family of octal buffers and drivers. It is part of Texas Instruments' broader portfolio of high-performance logic devices designed for demanding digital interfaces. The SN74ABT541B serves as a non-inverting buffer, distinct from transceivers like the SN74ABT245 which offer bidirectional data flow.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ABT541BDW

Buffers, Drivers, Receivers, Transceivers FAQ

How do the dual output enable inputs function?

The OE1 and OE2 inputs act as a two-input AND gate with active-low logic. If either OE1 or OE2 is high, all eight outputs enter the high-impedance state. Both must be low to enable the outputs.

What is the behavior during power transitions?

When VCC is between 0 and 2.1 V, the device remains in a high-impedance state during power-up or power-down. To ensure this state above 2.1 V, OE should be tied to VCC through a pullup resistor.