MC74HC541ADTR2G

Overview

The MC74HC541ADTR2G is an octal bus buffer manufactured by onsemi, belonging to the HC logic family. It features eight non-inverting inputs and three-state outputs housed in a 20-TSSOP package. The device operates within a supply voltage range of 2 V to 6 V. Key electrical characteristics include a maximum propagation delay of 32 ns at 5 V with a 50 pF load, output drive currents of 6 mA for both high and low states, and a maximum static current of 20 uA. It supports a wide operating temperature range from -55°C to +125°C.

Feature Summary

• Provides bidirectional data transmission via eight non-inverting channels with three-state control.
• Supports operation across a broad supply voltage range from 2 V to 6 V.
• Capable of driving CMOS and TTL loads with specified output current capabilities.
• Designed for surface-mount assembly using a compact 20-lead TSSOP footprint.

Applications

• Bidirectional bus-oriented communications systems
• Clock drivers and buffered oscillators
• Memory module address and data bus buffering

Procurement Notes

Verify the specific suffix 'DTR2G' to confirm the tape-and-reel packaging format and RoHS compliance status. Ensure the ordering part number matches the required 20-TSSOP package variant. Cross-reference the manufacturer's latest datasheet for any updates regarding material declarations or environmental certifications before finalizing procurement specifications.

Selection Notes

Select this component when an octal buffer with three-state capability is required for bidirectional data paths. The HC series offers standard speed performance suitable for general-purpose digital applications. Consider the 2 V to 6 V operating range for compatibility with various logic families. Verify that the 20-TSSOP package dimensions fit the available PCB real estate constraints.

Part Context

This component is part of the widely adopted 74HC541 octal bus buffer family. It serves as a standard interface solution for connecting microprocessors to peripheral devices. The device provides isolation and signal integrity improvement for digital buses. It is commonly used in embedded systems requiring reliable data transfer between different voltage domains.

Replacement Considerations

Direct functional substitutes include MC74HC541ADWR2G (SOIC package) and MC74HC541N (DIP package). Other compatible variants within the same logic family may be considered if pinout and electrical specifications align with the design requirements.

FAQ

What is the maximum propagation delay for this buffer?

The maximum propagation delay is 32 ns when measured at a supply voltage of 5 V with a 50 pF capacitive load.

Does this device support bidirectional data flow?

Yes, the MC74HC541ADTR2G is designed as a bidirectional bus buffer, allowing data transmission in both directions controlled by the direction input pin.