DM74LS86N XOR Logic IC Equivalent & Substitute Parts

Part Overview

The DM74LS86N is a 4-channel, 2-input XOR (Exclusive OR) logic integrated circuit manufactured by onsemi in a 14-MDIP package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The DM74LS86N operates within a 4.75V to 5.25V supply voltage range and is designed for through-hole mounting applications in digital logic circuits.

Substiute Parts

DM74LS86N

onsemiIn Stock: 2557DM74LS86N Datasheet

Current PartRFQ

SN74LS86AN

Texas InstrumentsIn Stock: 7662SN74LS86AN Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DM74LS86N is determined by strict equivalence across the following parameters:

• Logic Type: XOR (Exclusive OR) with 4 channels and 2 inputs per channel
• Voltage Supply Range: 4.75V ~ 5.25V
• Input Logic Levels: Low 0.8V, High 2V
• Output Current Specifications: 400µA (high), 8mA (low)
• Operating Temperature Range: 0°C ~ 70°C
• Package Type: 14-DIP through-hole configuration with 0.300" (7.62mm) pitch
• Series Classification: 74LS logic family

The SN74LS86AN from Texas Instruments meets all functional and electrical equivalence criteria for direct substitution. Both parts share identical logic functionality, electrical characteristics, and physical package specifications within the 74LS series standard.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS86AN is the direct functional equivalent for the obsolete DM74LS86N. Both parts are electrically and mechanically interchangeable within the specified parameters. The SN74LS86AN offers the advantage of active product status, ensuring continued availability and supply chain reliability. Additionally, the SN74LS86AN meets ROHS3 compliance requirements, whereas the DM74LS86N is non-compliant. For new designs and production applications requiring RoHS compliance, the SN74LS86AN is the appropriate selection. Both parts maintain identical logic functionality and electrical performance within the 74LS series standard.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS86AN directly replace the DM74LS86N in existing designs?

A: Yes. Both parts are functionally and electrically equivalent within the specified parameters. The 14-DIP package configuration, pin assignments, and electrical characteristics are identical, enabling direct pin-for-pin substitution.

Q: What is the difference in propagation delay between these parts?

A: The DM74LS86N specifies 23ns maximum propagation delay at 5V with 50pF load, while the SN74LS86AN specifies 30ns at 5V with 15pF load. Both values fall within acceptable 74LS series performance ranges for XOR logic functions.

Q: Why is the DM74LS86N listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The SN74LS86AN remains in active production, providing a viable alternative for sourcing and future availability.

Q: Are there RoHS compliance differences between these parts?

A: Yes. The DM74LS86N is RoHS non-compliant, while the SN74LS86AN is ROHS3 compliant. For applications requiring RoHS compliance, the SN74LS86AN is the required selection.

Q: Do both parts use the same package type?

A: Yes. Both the DM74LS86N and SN74LS86AN use the 14-DIP (0.300", 7.62mm) through-hole package, ensuring mechanical compatibility in PCB layouts and socket configurations.