74AC540SJ

Buffers, Drivers, Receivers, Transceivers Overview

The Fairchild Semiconductor 74AC540SJ is an octal inverter buffer with 3-state outputs belonging to the AC logic series. It utilizes CMOS technology and features inverted output polarity. The device is housed in a 20-Lead Small Outline Package (SOP), specifically EIAJ TYPE II, which is 5.3mm wide. It operates within a temperature range of -40 °C to 85 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bus driver architecture with inverted output polarity
• 3-state outputs designed for efficient bus line driving
• Inputs and outputs positioned on opposite sides of the package to facilitate microprocessor interface and printed circuit board layout density

Buffers, Drivers, Receivers, Transceivers Applications

• Microprocessor output ports
• Bus-oriented transmitter/receiver systems
• Memory address register buffering

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package designation against the ordering code suffix 'SJ' to confirm the 20-lead SOP form factor. Ensure the application environment supports the specified operating temperature range and voltage requirements defined in the official datasheet before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal inverting buffer with 3-state capability is required for high-density PCB layouts. The opposite-side pinout arrangement distinguishes it from standard buffers, making it suitable for direct microprocessor interfacing where trace routing efficiency is critical.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74AC family of high-speed CMOS logic devices. It serves as an octal buffer/driver variant, distinct from non-inverting counterparts like the 74AC541. The device is manufactured by Fairchild Semiconductor, now part of ON Semiconductor, utilizing standard industrial logic specifications.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74AC540SC (SOIC) and 74AC540PC (PDIP) are alternative package options within the same functional family. Verify pin compatibility and thermal characteristics when substituting between different package types.