CD74HC4515E

Overview

The CD74HC4515E is a high-speed CMOS logic device functioning as a 4-to-16-line decoder or demultiplexer. It operates within a supply voltage range of 2 V to 6 V and supports a propagation delay of 83 ns at 5 V. The component features an active-low enable input and inverted outputs, housed in a 24-pin DIP package. It is designed for industrial temperature ranges from -55 °C to +125 °C.

Feature Summary

• Provides decoding or demultiplexing functionality for four binary inputs into sixteen distinct lines.
• Features an active-low enable input that controls the activation state of the output lines.
• Delivers inverted logic levels on all sixteen output channels.

Applications

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

Procurement Notes

Verify the specific manufacturer source, as this part number appears across multiple vendors including Texas Instruments, Renesas, Harris, and Thomson. Confirm the exact datasheet version matches the required electrical characteristics and pinout configuration before integration.

Selection Notes

Select this component when a single-channel 4-to-16 decoder with inverted outputs is required. Ensure the system voltage aligns with the 2 V to 6 V operating range and verify that the DIP-24 through-hole package fits the board layout constraints.

Part Context

This device belongs to the HC (High-speed CMOS) logic family, offering faster switching speeds compared to standard 4000B series devices while maintaining low power consumption. It serves as a fundamental building block for address decoding and data selection tasks in digital electronics.

Replacement Considerations

CD74HC4515EX: Identical function in SOIC-24 surface-mount package. CD74HCT4515EN: HCT logic level compatible alternative in PDIP-24 package.