74AC540SC

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74AC540SCX is an octal buffer and line driver belonging to the 74AC logic series. It features eight inverting outputs with three-state capability, housed in a 20-SOIC package. The device operates within a supply voltage range of 2 V to 6 V. Key electrical parameters include a maximum high-level output current of -24 mA and a low-level output current of 24 mA. Propagation delay is specified at 7.5 ns at 3.3 V and 6 ns at 5 V. The component supports surface-mount installation and functions across an operating temperature range of -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight inverting buffer channels with independent three-state control for bus isolation.
• Features a straight-through pinout architecture where inputs and outputs are located on opposite sides of the package to facilitate PCB layout density.

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address and data bus driving
• Clock signal distribution
• Microprocessor output port interfacing

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against official documentation, as variations such as SCX or DWG indicate differences in packaging formats like reel or tube. Confirm RoHS compliance status and moisture sensitivity level requirements prior to integration into manufacturing processes.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an inverting octal buffer with three-state outputs is required for high-density board designs. Ensure the application voltage falls within the 2 V to 6 V range and that the 24 mA drive current meets load requirements. Consider the non-inverting 74AC541 if signal phase preservation is necessary instead of inversion.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74AC family of CMOS logic devices manufactured by onsemi. It shares functional similarities with the MC74AC540DWG variant but differs in physical packaging configuration. The device is designed to interface directly with TTL-compatible systems while offering improved switching speeds compared to older logic families.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The MC74AC540DWG serves as a verified alternative from the same manufacturer, offering identical logical functionality but utilizing a wide SOIC-20 tube package instead of the standard SOIC-20 reel format.