MC74ACT541MG

Overview

The MC74ACT541MG is an octal buffer and line driver from the 74ACT logic family, manufactured by onsemi. It features eight non-inverting channels with three-state outputs housed in a TSSOP-20 package. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a maximum propagation delay of 7.5 ns at 5 V, high-level output current of -24 mA, and low-level output current of 24 mA. Static current is specified at 8 uA, with a maximum operating temperature of +85 C.

Feature Summary

• Provides eight non-inverting buffered channels for signal driving applications.
• Features three-state outputs that isolate the bus when not enabled.
• Utilizes a through-bol architecture with inputs and outputs on opposite sides for improved PCB layout density.

Applications

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

Procurement Notes

Verify the specific suffix MG corresponds to the TSSOP-20 package configuration as distinct from other variants like DTG or DWG. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the supplier provides traceability documentation matching the onsemi manufacturing origin. Cross-reference the datasheet revision date to guarantee parameter accuracy against your design specifications.

Selection Notes

Select this component when TTL-compatible input levels are required alongside CMOS drive strength. The ACT series offers faster switching speeds compared to standard AC or HC families while maintaining low power consumption. The through-bol pinout is critical for designs requiring direct microprocessor interface without complex routing. Verify that the 4.5 V minimum supply voltage aligns with the system power rail availability.

Part Context

This part belongs to the MC74ACT540/541 series of octal buffers. The 541 variant specifically provides non-inverting logic, whereas the 540 offers inverting outputs. These devices are functionally similar to the 74AC240 and 74AC244 but utilize a different pin arrangement optimized for bus-oriented architectures. The MG suffix denotes the Thin Shrink Small Outline Package (TSSOP) form factor.

Replacement Considerations

• MC74ACT541DTG
• MC74ACT541DWG