DM74AS286MX Equivalent & Substitute Parts

Part Overview

The DM74AS286MX is a 9-bit parity generator/checker logic integrated circuit manufactured by onsemi in 14-SOIC surface mount packaging. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations. The part operates within the 74AS logic family standard, providing parity generation and checking functionality for digital systems requiring error detection capabilities.

Substiute Parts

DM74AS286MX

onsemiIn Stock: 1188DM74AS286MX Datasheet

Current PartRFQ

SN74AS286D

Texas InstrumentsIn Stock: 2258SN74AS286D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DM74AS286MX is determined by strict equivalence across the following critical parameters:

• Logic Type: Parity Generator/Checker function
• Number of Circuits: 9-Bit configuration
• Package / Case: 14-SOIC (0.154", 3.90mm Width) surface mount
• Voltage - Supply: 4.5 V ~ 5.5 V operating range
• Operating Temperature: 0°C ~ 70°C range
• Current - Output High, Low: 15mA, 48mA / 2mA, 20mA specifications
• Base Product Number: 74AS286 logic family designation

The SN74AS286D from Texas Instruments meets all specified electrical and mechanical parameters, providing direct functional equivalence within the 74AS logic family standard.

Parameter Comparison

Engineering Selection Recommendations

The SN74AS286D from Texas Instruments is the direct equivalent substitute for the obsolete DM74AS286MX. Selection of the SN74AS286D is based on:

• Identical electrical specifications across all operating parameters
• Identical mechanical packaging and pinout configuration
• Active product status ensuring continued availability and supply chain stability
• RoHS3 compliance providing regulatory advantage over the obsolete onsemi part
• Equivalent moisture sensitivity classification and environmental ratings
• Matching REACH and ECCN classifications for export and regulatory compliance

The transition from DM74AS286MX to SN74AS286D requires no circuit modifications, PCB layout changes, or firmware adjustments.

Frequently Asked Questions (FAQ)

Q: Can the SN74AS286D be used as a direct replacement for the DM74AS286MX without PCB modifications?

A: Yes. The SN74AS286D is pin-compatible and electrically equivalent. No PCB layout changes are required for substitution.

Q: Are there differences in packaging between these parts?

A: Both parts use identical 14-SOIC (0.154", 3.90mm Width) surface mount packaging. Mechanical compatibility is complete.

Q: What is the primary advantage of selecting the SN74AS286D over the DM74AS286MX?

A: The SN74AS286D has active product status, ensuring long-term availability and supply chain continuity. The DM74AS286MX is obsolete and subject to inventory depletion.

Q: Do the supply voltage and operating temperature ranges differ between these parts?

A: No. Both parts operate within 4.5 V to 5.5 V supply voltage and 0°C to 70°C temperature range specifications.

Q: Are there compliance or regulatory differences between these substitutes?

A: The SN74AS286D carries RoHS3 compliance certification. Both parts maintain equivalent REACH and ECCN classifications.