SN74ALS86D Equivalent & Substitute Parts

Part Overview

The SN74ALS86D is a 4-channel XOR (Exclusive OR) logic gate IC manufactured by Texas Instruments in 14-SOIC surface mount packaging. This component is classified as Last Time Buy, indicating discontinued production with limited remaining inventory. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this logic gate.

Substiute Parts

SN74ALS86D

Texas InstrumentsIn Stock: 2155SN74ALS86D Datasheet

Current PartRFQ

SN74ALS86DR

Texas InstrumentsIn Stock: 1935SN74ALS86DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74ALS86D is determined by strict equivalence across the following critical parameters:

• Logic function: XOR (Exclusive OR) with 4 channels and 2 inputs per channel
• Electrical specifications: Supply voltage 4.5V ~ 5.5V, output current 400µA/8mA, input logic levels 0.8V/2V, propagation delay 17ns @ 5V/50pF
• Package format: 14-SOIC surface mount with identical physical dimensions
• Environmental compliance: ROHS3 compliance and MSL Level 1
• Operating temperature range: 0°C ~ 70°C

The substitute part SN74ALS86DR meets all these criteria and differs only in packaging configuration (Tape & Reel versus Tube) and product status (Active versus Last Time Buy).

Parameter Comparison

Engineering Selection Recommendations

The SN74ALS86DR is a direct functional and electrical equivalent to the SN74ALS86D. Both parts are manufactured by Texas Instruments, share identical electrical performance specifications, and are housed in the same 14-SOIC package format. The primary distinction is product status: the SN74ALS86D is Last Time Buy with limited inventory (2144 pcs), while the SN74ALS86DR maintains Active status with sustained availability (1900 pcs).

For new designs or applications requiring long-term supply assurance, the SN74ALS86DR is the appropriate selection. Both parts maintain ROHS3 compliance and identical environmental certifications, ensuring regulatory continuity. The packaging difference (Tube versus Tape & Reel) reflects distribution method only and does not affect functional or electrical performance.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS86DR be used as a direct replacement for SN74ALS86D?

A: Yes. Both parts are electrically and functionally identical with matching supply voltage, output current, input logic levels, propagation delay, operating temperature range, and 14-SOIC package dimensions. The only differences are packaging configuration and product lifecycle status.

Q: What is the significance of the Last Time Buy status on the SN74ALS86D?

A: Last Time Buy indicates the manufacturer has discontinued production. Existing inventory is limited to 2144 units. For applications requiring sustained component availability, transition to the Active SN74ALS86DR is recommended.

Q: Does the Tape & Reel packaging of SN74ALS86DR affect circuit performance?

A: No. Tape & Reel is a distribution and handling format used for automated assembly processes. It does not alter electrical characteristics, performance specifications, or functional behavior of the component.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both SN74ALS86D and SN74ALS86DR are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What are the critical parameters for XOR logic gate substitution?

A: Logic function (4-channel XOR with 2 inputs), supply voltage range (4.5V ~ 5.5V), output current specifications (400µA/8mA), input logic thresholds (0.8V/2V), propagation delay (17ns @ 5V/50pF), package format (14-SOIC), and operating temperature range (0°C ~ 70°C) must remain constant for functional equivalence.