CD74HC541EG4

Overview

The CD74HC541EG4 is an octal buffer and line driver manufactured by Texas Instruments. It belongs to the HC logic family and features non-inverting outputs with three-state control. The device operates within a supply voltage range of 2 V to 6 V. It provides high-level output current of -7.8 mA and low-level output current of 7.8 mA. The component supports through-hole mounting in a PDIP-20 package. It functions across a wide operating temperature range from -55 °C to +125 °C.

Feature Summary

• Octal configuration providing eight independent non-inverting buffers or line drivers
• Three-state outputs controlled by dual active-low enable inputs for bus driving applications
• High noise immunity and low power consumption characteristic of CMOS technology
• Wide operating temperature range suitable for demanding industrial environments

Applications

• Bus-oriented systems requiring data buffering
• Clock distribution circuits
• Memory module address and data lines
• Industrial control system interfaces

Procurement Notes

Verify the specific suffix EG4 corresponds to the PDIP-20 through-hole package variant when sourcing. Confirm RoHS compliance status and lead times directly with authorized distributors, as manufacturing sites may vary. Ensure the ordering part number matches the required pin count and electrical specifications for the target design.

Selection Notes

Select this component for designs requiring high drive capability and isolation between input and output buses. The dual enable inputs allow flexible control over data flow direction. Consider the PDIP-20 package constraints regarding board space and thermal dissipation compared to surface-mount alternatives like TSSOP or SOIC variants within the same logic family.

Part Context

This device is part of the standard 74HC series of high-speed CMOS logic products. It serves as a fundamental building block for digital signal routing and level shifting. The component is widely used in general-purpose computing and communication equipment where reliable data transmission and electrical isolation are required.

Replacement Considerations

Compatible substitutes include the SN74HC541N and CD74HC541E. Verify that alternative packages maintain identical pinout configurations and electrical characteristics before implementation.