MC74AC541NG

Overview

The MC74AC541NG is an octal buffer and line driver manufactured by onsemi, belonging to the AC logic family. It features eight non-inverting channels with three-state outputs, housed in a 20-pin DIP 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 8 ns at 3.3 V and 6 ns at 5 V. The component supports a wide operating temperature range from -40 °C to +85 °C.

Feature Summary

• Flow-through architecture with inputs and outputs located on opposite sides of the package to facilitate microprocessor interface and PCB layout density.
• Three-state outputs allow isolation from the bus when the output enable signals are inactive, preventing signal interference.
• High drive capability with output source and sink currents of 24 mA for driving multiple loads.

Applications

• Memory and address drivers
• Clock drivers
• Bus-oriented transmitter/receivers

Procurement Notes

Verify the specific suffix 'NG' against official onsemi documentation to confirm the package type and tape-and-reel or tube configuration. Ensure the order matches the required lead-free status and RoHS compliance specifications listed in the manufacturer's datasheet for this exact part number variant.

Selection Notes

Select this component when a non-inverting octal buffer with flow-through pinout is required for memory or address buses. It serves as a functional alternative to similar devices like the 74AC244 but offers distinct physical layout advantages for microprocessor connections due to its input-output arrangement.

Part Context

This device is part of the MC74AC540/541 series of octal buffers and line drivers. The MC74AC541 is the non-inverting counterpart to the MC74AC540. Both share similar functionality with the 74AC240 and 74AC244 families but utilize a unique pinout that places inputs on one side and outputs on the other, optimizing board space.

Replacement Considerations

MC74AC540DWG

FAQ

What is the polarity of the MC74AC541NG outputs?

The MC74AC541NG provides non-inverting outputs, meaning the output signal follows the input signal state directly.

How does the flow-through architecture benefit circuit design?

The flow-through architecture places inputs on one side of the package and outputs on the opposite side, allowing for easier interfacing with microprocessors and greater printed circuit board density.