M74HC541B1R

Overview

The M74HC541B1R is an octal bus buffer with three-state outputs manufactured by STMicroelectronics. It operates on a supply voltage range of 2V to 6V and features high-speed performance with a typical propagation delay of 9ns at 6V. The device provides symmetrical output impedance with minimum drive currents of 6mA for both high and low states. It includes dual input enable controls (G1, G2) that place all outputs in a high-impedance state when either input is high. The component is housed in a 20-pin DIP package.

Feature Summary

• Advanced high-speed CMOS technology utilizing silicon gate C2MOS fabrication
• Non-inverting logic configuration with inputs and outputs positioned on opposite sides of the package
• Dual-input AND control gate enabling high-impedance output states
• Integrated protection circuits against static discharge and transient excess voltage

Applications

• Bus-oriented memory and address drivers
• Clock drivers
• Buffering of I/O signals

Procurement Notes

Verify the specific ordering code suffix to confirm the package type, as the base model number corresponds to multiple physical formats. Confirm RoHS compliance status and environmental certifications prior to integration. Ensure the selected variant matches the required lead time and availability constraints for the production timeline.

Selection Notes

Select this component when non-inverting signal buffering with tri-state capability is required. The wide operating voltage range supports compatibility with various logic families. Consider the DIP package dimensions for through-hole mounting requirements and verify thermal dissipation limits under maximum load conditions.

Part Context

This part belongs to the 74HC series of advanced high-speed CMOS logic functions. It is functionally compatible with the standard 74LS541 series but offers lower power consumption and higher noise immunity. The M74 prefix indicates commercial temperature grade manufacturing standards.

Replacement Considerations

• CD74HCT541E
• SN74HCT541N