DM74ALS86MX Equivalent & Substitute Parts

Part Overview

The DM74ALS86MX is a 4-channel XOR (Exclusive OR) logic gate IC manufactured by onsemi in a 14-SOIC surface mount package. This component implements basic digital logic functions commonly used in arithmetic circuits, parity generation, and comparison applications. The part is currently listed as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts maintain identical electrical characteristics and pinout compatibility while offering improved availability and product status.

Substiute Parts

DM74ALS86MX

onsemiIn Stock: 740DM74ALS86MX Datasheet

Current PartRFQ

SN74ALS86D

Texas InstrumentsIn Stock: 2155SN74ALS86D Datasheet

DirectRFQ

SN74ALS86NSR

Texas InstrumentsIn Stock: 5110SN74ALS86NSR Datasheet

SimilarRFQ

SN74ALS86DR

Texas InstrumentsIn Stock: 1935SN74ALS86DR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DM74ALS86MX is determined by strict equivalence across the following parameters:

• Logic Type: XOR (Exclusive OR)
• Number of Circuits: 4
• Number of Inputs: 2
• Voltage - Supply: 4.5V ~ 5.5V
• Current - Output High, Low: 400µA, 8mA
• Input Logic Level - Low: 0.8V
• Input Logic Level - High: 2V
• Max Propagation Delay @ V, Max CL: 17ns @ 5V, 50pF
• Operating Temperature: 0°C ~ 70°C
• Series: 74ALS
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All identified substitute parts meet these electrical and functional requirements. Variations in packaging format (SOIC width tolerance) and product status do not affect functional compatibility in applications where the DM74ALS86MX was originally specified.

Parameter Comparison

Engineering Selection Recommendations

SN74ALS86DR (Texas Instruments) is the primary substitute for new designs and production. This part maintains full electrical equivalence to the DM74ALS86MX while offering active product status, ROHS3 compliance, and availability in Tape & Reel packaging suitable for automated assembly. Current inventory of 1,900 units supports production requirements.

SN74ALS86NSR (Texas Instruments) provides an alternative with identical electrical specifications and active product status. The 14-SO package variant (5.30mm width) differs from the standard 14-SOIC (3.90mm width) and requires verification of PCB footprint compatibility. This part is available in the highest quantity (5,011 units) and is suitable for applications where package width tolerance is acceptable.

SN74ALS86D (Texas Instruments) is available in Tube packaging with Last Time Buy status. This part maintains full electrical equivalence but represents a transitional product status. Selection is appropriate only when Tube packaging meets assembly requirements and when SN74ALS86DR or SN74ALS86NSR are unavailable.

All substitute parts carry ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements. Selection between substitutes should prioritize product status (Active preferred), packaging format compatibility with assembly processes, and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS86NSR be used as a direct replacement for DM74ALS86MX?

A: SN74ALS86NSR is electrically equivalent and functionally compatible. The primary consideration is package width: SN74ALS86NSR uses a 14-SO package (5.30mm width) compared to the standard 14-SOIC (3.90mm width). PCB footprint compatibility must be verified before substitution.

Q: What is the difference between SN74ALS86D and SN74ALS86DR?

A: Both parts are electrically identical XOR logic gates with identical electrical specifications. The difference is packaging format: SN74ALS86D is supplied in Tube packaging, while SN74ALS86DR is supplied in Tape & Reel (TR) format. SN74ALS86DR is preferred for automated assembly processes.

Q: Why is DM74ALS86MX listed as obsolete?

A: The DM74ALS86MX has reached end-of-life status from onsemi. Texas Instruments maintains active production of functionally equivalent 74ALS86 variants, making substitution straightforward for ongoing applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All Texas Instruments substitute parts (SN74ALS86D, SN74ALS86NSR, SN74ALS86DR) are ROHS3 compliant. The original DM74ALS86MX RoHS status was not specified in available documentation.

Q: What are the key electrical parameters that determine substitution eligibility?

A: Substitution is based on matching: Logic Type (XOR), Circuit Count (4), Input Count (2), Supply Voltage (4.5V ~ 5.5V), Output Current (400µA, 8mA), Input Logic Levels (0.8V low, 2V high), Propagation Delay (17ns @ 5V, 50pF), and Operating Temperature (0°C ~ 70°C). All identified substitutes meet these requirements.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, provided that PCB footprint compatibility is confirmed. The 14-SOIC and 14-SO packages have different physical dimensions. Designs using standard 14-SOIC footprints accept SN74ALS86D and SN74ALS86DR without modification. SN74ALS86NSR (14-SO variant) requires footprint verification.