MC74ACT541DT

Overview

The MC74ACT541DT is an octal buffer and line driver from the 74ACT logic family, manufactured by onsemi. It features eight non-inverting outputs with three-state capability, housed in a 20-pin TSSOP package. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a propagation delay of 7.5 ns at 5 V, output drive currents of ±24 mA, and a static current of 8 µA. It supports industrial operating temperatures from -40°C to +85°C.

Feature Summary

• Provides eight non-inverting buffered outputs with three-state control for bus isolation.
• Features TTL-compatible inputs for direct interfacing with TTL logic circuits.
• Utilizes a through architecture with inputs and outputs on opposite sides to facilitate PCB layout density.

Applications

• Memory address and data bus drivers
• Clock signal distribution buffers
• Microprocessor I/O port expansion

Procurement Notes

Verify the specific suffix against official datasheets, as packaging variations such as tube or tape-and-reel may exist. Confirm RoHS compliance status and moisture sensitivity level prior to integration. Ensure the supplier provides traceable documentation matching the manufacturer's part identification to avoid counterfeit components.

Selection Notes

Select this component when high-speed buffering with strong drive capability is required for 5V systems. The ACT series offers faster switching speeds compared to standard AC logic while maintaining CMOS power efficiency. Consider the TSSOP package constraints for thermal management and board space availability during design.

Part Context

This part belongs to the MC74ACT541 series of octal buffers. It serves as the non-inverting counterpart to the MC74ACT540. The device is designed for high-density digital applications requiring reliable signal integrity and bus isolation in microprocessor-based systems.

Replacement Considerations

Compatible substitutes include MC74ACT541DTR2G and MC74AC541DWG. Verify pinout compatibility and electrical specifications before substitution.