CD74HC4515EN Equivalent & Substitute Parts

Part Overview

The CD74HC4515EN is a Decoder/Demultiplexer integrated circuit with a 1 x 4:16 configuration, manufactured by Texas Instruments in the 74HC logic series. This component is classified as obsolete, though 775 pieces remain available in new original stock. The CD74HC4515EN is packaged in a 24-DIP (Dual In-line Package) format suitable for through-hole mounting applications.

Due to its obsolete status, identifying functionally equivalent substitute parts is essential for ongoing design support, production continuity, and long-term component availability. Substitute parts must maintain identical electrical performance and functional specifications while potentially offering alternative packaging options.

Substiute Parts

CD74HC4515EN

Texas InstrumentsIn Stock: 878CD74HC4515EN Datasheet

Current PartRFQ

CD74HC4515M96

Texas InstrumentsIn Stock: 2112CD74HC4515M96 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD74HC4515EN are determined by strict adherence to the following electrical and functional parameters:

• Decoder/Demultiplexer Configuration: Must be 1 x 4:16
• Independent Circuits: Must be 1
• Output Current Specifications: Must be 5.2mA for both high and low states
• Supply Voltage Range: Must be 2V to 6V
• Operating Temperature Range: Must be -55°C to 125°C
• Voltage Supply Source: Must be Single Supply
• Base Product Number: Must be 74HC4515 series
• Regulatory Compliance: Must maintain ROHS3 compliance and REACH unaffected status

The primary distinction between the main part and its substitute is the mounting technology and package format. The CD74HC4515EN uses through-hole mounting (24-DIP), while the CD74HC4515M96 uses surface-mount technology (24-SOIC). Both maintain identical electrical performance and functional specifications.

Parameter Comparison

Engineering Selection Recommendations

The CD74HC4515M96 is the manufacturer-recommended substitute for the CD74HC4515EN. Both parts maintain identical electrical specifications, functional performance, and regulatory compliance status. The CD74HC4515M96 carries an active product status, ensuring long-term availability and supply chain continuity compared to the obsolete CD74HC4515EN.

Selection between these parts depends on circuit board design requirements:

• CD74HC4515EN (24-DIP through-hole): Suitable for breadboard prototyping, legacy through-hole PCB designs, and applications requiring manual component insertion.
• CD74HC4515M96 (24-SOIC surface-mount): Suitable for modern surface-mount PCB designs, automated assembly processes, and space-constrained applications.

Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. The selection of either part does not compromise functional performance or electrical characteristics.

Frequently Asked Questions (FAQ)

Q: Can the CD74HC4515M96 directly replace the CD74HC4515EN in existing designs?

A: Electrical and functional replacement is direct. However, physical board layout modifications are required due to different package formats. The CD74HC4515EN uses 24-DIP through-hole mounting, while the CD74HC4515M96 uses 24-SOIC surface-mount technology. PCB footprint redesign is necessary.

Q: Are there any electrical performance differences between the CD74HC4515EN and CD74HC4515M96?

A: No. Both parts maintain identical output current specifications (5.2mA high/low), supply voltage range (2V to 6V), operating temperature range (-55°C to 125°C), and decoder/demultiplexer configuration (1 x 4:16).

Q: Why is the CD74HC4515EN classified as obsolete?

A: The CD74HC4515EN is listed as obsolete by the manufacturer. The CD74HC4515M96 surface-mount variant is the active product in the 74HC4515 family, reflecting industry trends toward surface-mount technology in modern PCB manufacturing.

Q: What is the significance of the 24-DIP and 24-SOIC package designations?

A: 24-DIP (Dual In-line Package) is a through-hole format with 0.300" (7.62mm) width, used in traditional PCB designs. 24-SOIC (Small Outline Integrated Circuit) is a surface-mount format with 0.295" (7.50mm) width, used in modern automated assembly processes. Both contain 24 pins but differ in mounting method and physical dimensions.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the CD74HC4515EN and CD74HC4515M96 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What is Moisture Sensitivity Level (MSL) 1, and why does it matter?

A: MSL 1 indicates unlimited shelf life without moisture control requirements. Both parts can be stored and handled without special moisture-protection measures, simplifying inventory management and component handling procedures.