74ABT240DB,112

Buffers, Drivers, Receivers, Transceivers Overview

The NXP USA Inc. 74ABT240DB,112 is an octal inverting buffer featuring 3-State outputs, designed for high-performance bus interface applications. It utilizes BiCMOS technology to achieve low static and dynamic power dissipation alongside high speed and drive capability. The device includes two output enables (1OE, 2OE), each controlling four of the 3-State outputs. Recommended operating conditions specify a DC supply voltage range of 4.5V to 5.5V. Propagation delay from input to output is typically 3.1 ns at VCC = 5V with a 50pF load. Output drive capability provides +64mA sink current and -32mA source current.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bus interface architecture with dual independent output enable controls
• High output drive capability supporting heavy capacitive loads
• Power-up 3-State functionality enabling live insertion and extraction

Buffers, Drivers, Receivers, Transceivers Applications

• Driving bus lines in high-speed digital systems
• Clock distribution networks requiring inversion and buffering
• Memory bus interfaces utilizing 3-State control

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'DB' corresponds to the 20-Pin Plastic SSOP Type II package when sourcing replacements. Confirm that the component meets the required temperature range of -40°C to +85°C for your application environment. Ensure compatibility with the 4.5V to 5.5V supply voltage specifications during integration.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring octal buffering with inverted logic and 3-State isolation. The SSOP Type II package offers a compact surface-mount solution suitable for space-constrained PCB layouts. Consider the propagation delay characteristics and output drive strength when matching signal integrity requirements for the target bus topology.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ABT series of high-speed BiCMOS logic devices manufactured by Philips Semiconductors, now NXP. The 74ABT240 specifically functions as an octal inverting buffer. The 'DB' designation identifies the physical package type as a 20-pin plastic SSOP Type II, distinguishing it from DIP or TSSOP variants within the same logical family.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check datasheets for equivalent octal inverting buffers with 3-State outputs from other manufacturers. Verify pinout compatibility and ensure the replacement supports the 4.5V to 5.5V operating voltage range and similar propagation delays.