74ABT2240CMSAX

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ABT2240CMSAX is an inverting octal buffer and line driver featuring integrated 25Ω series resistors within the output stage. Designed for driving capacitive inputs of MOS memory drivers, address drivers, clock drivers, and bus-oriented transmitters or receivers, it provides high impedance glitch-free bus loading throughout the power-up and power-down cycle. The device supports nondestructive hot insertion and includes guaranteed latchup protection. It operates within a supply voltage range of +4.5V to +5.5V and functions across an ambient temperature range of -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Integrated 25Ω series resistors in outputs reduce signal ringing and eliminate the need for external components.
• High impedance glitch-free bus loading during the entire power-up and power-down cycle.
• Nondestructive hot insertion capability.
• Guaranteed latchup protection.

Buffers, Drivers, Receivers, Transceivers Applications

• Driving capacitive inputs of MOS memory drivers
• Address drivers
• Clock drivers
• Bus-oriented transmitters/receivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the ordering code suffix 'X' corresponds to tape and reel packaging as specified in the datasheet. Confirm the package type matches the MSA20 designation for the 20-lead shrink small outline package. Ensure compatibility with the recommended operating conditions regarding supply voltage and ambient temperature ranges before procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when driving capacitive loads requiring integrated series resistance to minimize signal integrity issues. The ABT logic family offers high speed suitable for clock and address lines. Verify that the inverting function aligns with system logic requirements. Ensure the 20-lead SSOP package fits the available PCB footprint constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ABT logic family, which combines the speed of advanced bipolar technology with CMOS low power consumption. The 74ABT2240 specifically addresses signal integrity challenges in high-speed digital systems by incorporating internal termination resistors, distinguishing it from standard buffers lacking such features.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for direct pin-compatible substitutes within the same logic family that offer similar propagation delays and drive capabilities. Verify if alternative packages are available from the manufacturer or other vendors while maintaining the required electrical characteristics and thermal performance.

Buffers, Drivers, Receivers, Transceivers FAQ

What is the purpose of the integrated resistors in the outputs?

The integrated 25Ω series resistors are designed to reduce ringing on the output signals and eliminate the need for adding external resistors in the circuit design.

Does the device support hot insertion?

Yes, the 74ABT2240 provides nondestructive hot insertion capability, allowing it to be inserted into a live system without damage.