74ACT541PC

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ACT541PC is an octal buffer and line driver featuring three-state outputs, designed for memory, address, and clock driving applications. It utilizes a flow-through architecture with inputs and outputs positioned on opposite sides of the package to facilitate microprocessor interface and PCB layout density. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature from -40°C to +85°C. Outputs are capable of sourcing and sinking 24 mA. Propagation delay at 5.0 V is typically 4.5 ns (tPLH) and 5.5 ns (tPHL), with maximum limits of 7.0 ns. Quiescent supply current is limited to 40 µA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Flow-through architecture with inputs and outputs located on opposite sides of the package for simplified microprocessor interfacing.
• Three-state outputs allowing isolation from the bus when disabled.
• TTL-compatible inputs enabling direct interface with TTL logic circuits.
• Reduced ICC and IOZ compared to previous generations.

Buffers, Drivers, Receivers, Transceivers Applications

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

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'PC' against official ordering information, as standard datasheet listings typically specify SC, SCX, MTC, or MTCX variants. Confirm package type (SOIC-20 or TSSOP-20) matches design requirements. Ensure RoHS compliance status aligns with project specifications. Validate that the component meets the required operating temperature range and voltage specifications for the target application environment.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a non-inverting octal buffer with high drive capability is required. The ACT series provides TTL-compatible input thresholds suitable for mixed-voltage systems. Consider the flow-through pinout if board space optimization and routing ease between processor and peripheral are priorities. Compare propagation delays and power consumption against AC series alternatives if lower voltage operation is needed.

Buffers, Drivers, Receivers, Transceivers Part Context

The 74ACT541 belongs to the 74AC(T)540/541 family of octal buffers. It functions similarly to the 74AC244 and 74ACTC244 but differs in pinout arrangement. While the 74AC541 is the non-inverting option of the 74AC540, the 74ACT541 specifically adds TTL-compatible inputs. This family is part of onsemi's standard logic product line aimed at improving system density and performance.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct functional substitutes include the 74ACT541SC, 74ACT541SCX, 74ACT541MTC, and 74ACT541MTCX. Verify package compatibility (SOIC-20 vs. TSSOP-20) when substituting. Cross-reference electrical characteristics such as propagation delay and output current to ensure performance parity in the specific circuit design.