74HC4543P-E

Overview

The 74HC4543P-E is a high-speed CMOS logic integrated circuit manufactured by Renesas Electronics Corporation. It functions as a 4-to-16 line decoder/demultiplexer with active-low outputs and an active-low enable input. The device operates within a supply voltage range of 2V to 6V, ensuring compatibility with standard 5V logic systems while supporting lower voltage applications. It utilizes the HC/UH series architecture for robust performance across wide temperature ranges.

Feature Summary

• Provides decoding functionality from four binary inputs to sixteen distinct output lines
• Features active-low outputs suitable for interfacing with various digital logic components
• Includes an active-low enable input to control data flow and power states

Applications

• Data routing in digital communication systems
• Address decoding in microprocessor-based memory systems
• Control signal distribution in industrial automation equipment

Procurement Notes

Verify the specific suffix 'P-E' against the manufacturer's current datasheet to confirm package type and environmental compliance status. Ensure that the ordering information matches the exact part number required for your design, as suffixes may indicate variations in packaging or lead finish. Cross-reference with official Renesas documentation to validate availability and lifecycle status before finalizing procurement plans.

Selection Notes

Select this component when a 4-to-16 decoding function is required within a standard 74HC logic family environment. Consider its operating voltage range and propagation delay characteristics relative to system timing requirements. Evaluate the PDIP package option if through-hole mounting is necessary for the target application board layout and assembly process constraints.

Part Context

This part belongs to the Renesas 74HC series, which represents high-speed CMOS logic devices compatible with standard TTL levels. The 74HC4543 specifically addresses the need for multi-line decoding in complex digital circuits. As part of the broader 74HC family, it shares common electrical characteristics and pinout conventions with other devices in the series, facilitating modular design approaches.

Replacement Considerations

Compatible substitutes include the SN74HC4543 from Texas Instruments or the MC74HC4543 from ON Semiconductor. Verify pin compatibility and electrical specifications such as output drive strength and switching speeds before substitution. Ensure that any alternative device meets the same voltage and temperature operating ranges required by the original design.