74ABT540DB,112

Buffers, Drivers, Receivers, Transceivers Overview

The 74ABT540DB,112 is an octal inverting buffer with 3-State outputs manufactured by NXP USA Inc. It utilizes BiCMOS technology to provide high-speed performance and robust drive capability of +64mA/-32mA. The device operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range from -40°C to +85°C. Key electrical parameters include a typical propagation delay of 3.1ns at 5V with 50pF load, input capacitance of 3pF, and output capacitance of 7pF. Quiescent supply current is typically 50μA when outputs are disabled.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bus interface architecture with inputs and outputs on opposite package sides for efficient PCB layout
• High output drive capability supporting heavy capacitive loads
• Power-up 3-State function prevents bus contention during initialization
• Live insertion/extraction permitted without damaging the device

Buffers, Drivers, Receivers, Transceivers Applications

• Driving bus lines in computer systems
• Clock buffering and distribution
• Memory address/data bus drivers
• High-speed digital signal transmission

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package type, as the DB suffix denotes SSOP-20. Confirm the manufacturer designation aligns with project requirements, noting historical transitions between Philips Semiconductors and NXP. Ensure the component status is active for new designs, as older specifications may reference legacy branding. Cross-reference the datasheet revision date to ensure compatibility with current design constraints.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring high-speed inversion with significant drive strength. The BiCMOS process offers lower power dissipation compared to standard TTL while maintaining fast switching speeds. Consider the 3-State feature for multiplexed bus architectures. Verify that the 4.5V to 5.5V supply range matches the system voltage rails. Evaluate thermal management needs given the potential for high output currents.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74ABT logic family, which combines the speed of Advanced Bipolar technology with CMOS low power consumption. The octal configuration provides eight independent channels in a single package. The 3-State output allows multiple devices to share a common data bus efficiently. The inverting nature makes it suitable for phase correction or signal routing where polarity reversal is required.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for direct pin-compatible alternatives within the 74ABT series such as non-inverting variants if polarity adjustment is possible. Verify equivalent drive strength and propagation delays against other octal buffers. Ensure any substitute maintains the same 3-State control logic and supply voltage specifications.