74F240SCX

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74F240SCX is an octal buffer and line driver featuring 3-STATE outputs, designed for memory and address drivers, clock drivers, and bus-oriented transmitters/receivers. It operates within a supply voltage range of +4.5V to +5.5V. The device provides high drive capability with outputs capable of sinking 64 mA and sourcing 12 mA. Propagation delays are specified at a maximum of 8.0 ns under standard operating conditions (TA = 0°C to +70°C, VCC = 5.0V, CL = 50 pF). It utilizes input clamp diodes to limit high-speed termination effects and is housed in a 20-Lead Small Outline Integrated Circuit (SOIC) package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal buffers and line drivers designed for improved PC and board density
• 3-STATE outputs suitable for driving bus lines or buffering memory address registers
• High current drive capability with outputs sinking up to 64 mA and sourcing 12 mA
• Input clamp diodes included to limit high-speed termination effects

Buffers, Drivers, Receivers, Transceivers Applications

• Memory and address drivers
• Clock drivers
• Bus-oriented transmitters and receivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering code suffix 'X' indicates Tape and Reel packaging as per datasheet notes. Confirm the manufacturer origin, as the datasheet references Fairchild Semiconductor Corporation, which may impact supply chain verification. Ensure the component meets the required environmental specifications for the intended application temperature range.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high fan-out and strong drive currents are required for bus applications. The 74F240 variant specifically provides non-inverting logic functionality compared to the 74F241. Consider the propagation delay characteristics relative to system timing requirements. Verify that the 20-SOIC package dimensions fit the available PCB space constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74F series of logic devices, known for fast switching speeds. It is functionally related to the 74F241 (inverting) and 74F244 (non-inverting with different output enable configurations). The 'SC' designation refers to the SOIC package, while the 'X' suffix denotes tape and reel packaging availability.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include other manufacturers' 74F240 variants in SOIC-20 packages. Verify pin compatibility and electrical characteristics such as output current and propagation delay before substitution.