CD74HC86MT XOR Logic IC Equivalent & Substitute Parts

Part Overview

The CD74HC86MT is a 4-channel, 2-input XOR (Exclusive OR) logic gate IC manufactured by Texas Instruments in 14-SOIC surface mount packaging. This part is discontinued at DiGi Electronics but remains available through inventory stock of 1979 pieces. The XOR logic function is fundamental in digital circuit design for parity generation, binary comparison, and arithmetic operations. Due to its discontinued status, identifying functionally equivalent alternatives from active manufacturers ensures design continuity and supply chain reliability.

Key Parameters

Parameter	CD74HC86MT
Logic Type	XOR (Exclusive OR)
Number of Circuits	4
Number of Inputs	2
Voltage Supply Range	2V ~ 6V
Current - Quiescent (Max)	2 µA
Current - Output High/Low	5.2mA / 5.2mA
Input Logic Level - Low	0.5V ~ 1.8V
Input Logic Level - High	1.5V ~ 4.2V
Max Propagation Delay @ 6V, 50pF	20ns
Operating Temperature	-55°C ~ 125°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the CD74HC86MT is determined by the following criteria:

Primary Substitution Parameters:

Logic Type: XOR (Exclusive OR) with 4 channels and 2 inputs per channel
Package / Case: 14-SOIC surface mount form factor
Voltage Supply Range: 2V ~ 6V minimum requirement
Input/Output Logic Levels: Compatible with 0.5V ~ 1.8V (low) and 1.5V ~ 4.2V (high)
Propagation Delay: Maximum 20ns @ 6V, 50pF load
Operating Temperature: Minimum -55°C ~ 125°C range
RoHS Compliance: ROHS3 Compliant

Substitute Categories:

Category 1: Parametric Equivalents (Identical Specifications) Parts meeting all primary parameters with identical electrical performance and packaging.

Category 2: Direct Manufacturer Alternatives (Functional Equivalents) Parts from different manufacturers with matching logic function, package, and core electrical specifications.

Category 3: MFR Recommended Alternatives (Active Production) Parts recommended by manufacturers as direct replacements, currently in active production status.

Category 4: Non-Equivalent Parts (Excluded) Parts that do not meet substitution criteria due to different logic function, package type, or electrical specifications.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Circuits/Inputs	Voltage Supply	Quiescent Current (Max)	Propagation Delay @ 6V, 50pF	Operating Temp	Package	Product Status
CD74HC86MT	Texas Instruments	XOR	4 / 2	2V ~ 6V	2 µA	20ns	-55°C ~ 125°C	14-SOIC	Discontinued
CD74HC86M96	Texas Instruments	XOR	4 / 2	2V ~ 6V	2 µA	20ns	-55°C ~ 125°C	14-SOIC	Active
MC74HC86ADR2G	Fairchild Semiconductor	XOR	4 / 2	2V ~ 6V	1 µA	17ns	-55°C ~ 125°C	14-SOIC	Active
74HC86D,653	Nexperia USA Inc.	XOR	4 / 2	2V ~ 6V	2 µA	20ns	-40°C ~ 125°C	14-SOIC	Active
74HC86D-Q100,118	Nexperia USA Inc.	XOR	4 / 2	2V ~ 6V	2 µA	20ns	-40°C ~ 125°C	14-SOIC	Active
74HC86S14-13	Diodes Incorporated	XOR	4 / 2	2V ~ 6V	20 µA	15ns	-40°C ~ 125°C	14-SOIC	Active
MC74HC86ADG	onsemi	XOR	4 / 2	2V ~ 6V	1 µA	17ns	-55°C ~ 125°C	14-SOIC	Active
MM74HC86M	Fairchild Semiconductor	XOR	4 / 2	2V ~ 6V	2 µA	20ns	-40°C ~ 85°C	14-SOIC	Active
MM74HC86MX	Fairchild Semiconductor	XOR	4 / 2	2V ~ 6V	2 µA	20ns	-40°C ~ 85°C	14-SOIC	Active
NLV74HC86ADG	onsemi	XOR	4 / 2	2V ~ 6V	1 µA	26ns	-55°C ~ 125°C	14-SOIC	Obsolete
74HCT244D,653	Nexperia USA Inc.	Buffer, Non-Inverting	2 Elements / 4 Bits	4.5V ~ 5.5V	N/A	N/A	-40°C ~ 125°C	20-SOIC	Active

Engineering Selection Recommendations

Recommended Primary Substitutes (Active Production, Full Compatibility):

CD74HC86M96 (Texas Instruments) - Identical electrical specifications to the original CD74HC86MT with active product status. Same manufacturer ensures design continuity. Available in Cut Tape and Digi-Reel packaging options.
MC74HC86ADG (onsemi) - Meets all substitution criteria with superior propagation delay (17ns vs. 20ns) and lower quiescent current (1 µA vs. 2 µA). Maintains full operating temperature range (-55°C ~ 125°C). Highest inventory availability (12,000 pieces).
MC74HC86ADR2G (Fairchild Semiconductor) - Functionally equivalent with improved performance characteristics. Lower quiescent current and faster propagation delay. Suitable for designs requiring enhanced performance margins.

Secondary Substitutes (Active Production, Minor Parameter Variations):

74HC86D,653 (Nexperia USA Inc.) - Meets core XOR logic requirements with identical electrical performance. Operating temperature range reduced to -40°C ~ 125°C. Suitable for commercial and industrial applications not requiring full military temperature range.
74HC86D-Q100,118 (Nexperia USA Inc.) - Automotive-grade variant with AEC-Q100 qualification. Identical electrical specifications to 74HC86D,653. Required for automotive applications.
74HC86S14-13 (Diodes Incorporated) - Fastest propagation delay (15ns) among available substitutes. Quiescent current elevated to 20 µA. Largest inventory (47,800 pieces). Suitable for timing-critical applications where power consumption is not primary concern.

Temperature-Limited Substitutes (Active Production, Restricted Range):

MM74HC86M and MM74HC86MX (Fairchild Semiconductor) - Operating temperature limited to -40°C ~ 85°C. Not suitable for applications requiring full military temperature range (-55°C ~ 125°C). Acceptable for commercial and industrial designs within specified temperature limits.

Non-Recommended Substitutes:

NLV74HC86ADG (onsemi) - Obsolete product status. Slower propagation delay (26ns). Not recommended despite automotive qualification.
74HCT244D,653 (Nexperia USA Inc.) - Different logic function (Buffer, Non-Inverting vs. XOR). Different package (20-SOIC vs. 14-SOIC). Not functionally equivalent. Excluded from substitution consideration.

Frequently Asked Questions (FAQ)

Q: Can I use 74HCT244D,653 as a substitute for CD74HC86MT?

A: No. The 74HCT244D,653 is a buffer/non-inverting logic IC with fundamentally different logic function, different pin count (20-pin vs. 14-pin), and different package dimensions. It is not functionally equivalent and cannot replace the XOR logic function of the CD74HC86MT.

Q: What is the difference between CD74HC86MT and CD74HC86M96?

A: Both parts are manufactured by Texas Instruments with identical electrical specifications and operating parameters. The primary difference is packaging format: CD74HC86MT is supplied in Tape & Reel (TR) format, while CD74HC86M96 is available in Cut Tape (CT) and Digi-Reel format. CD74HC86M96 has active product status, making it the preferred choice for new designs.

Q: Are the onsemi MC74HC86ADG and Fairchild MC74HC86ADR2G interchangeable?

A: Yes, both parts are functionally equivalent with identical logic function, package, and core electrical specifications. Both meet the CD74HC86MT substitution criteria. The MC74HC86ADG offers slightly better performance (1 µA quiescent current vs. 2 µA) and is available in higher quantities.

Q: Can I use MM74HC86M or MM74HC86MX in military applications?

A: No. Both Fairchild parts have operating temperature range limited to -40°C ~ 85°C, which does not meet military specifications requiring -55°C ~ 125°C operation. These parts are suitable only for commercial and industrial applications within their specified temperature range.

Q: Why is the 74HC86S14-13 faster than the original CD74HC86MT?

A: The 74HC86S14-13 from Diodes Incorporated achieves 15ns propagation delay compared to 20ns for the CD74HC86MT. This represents improved semiconductor process technology and design optimization by the manufacturer. The trade-off is higher quiescent current (20 µA vs. 2 µA). This part is suitable for timing-critical applications where power consumption is not the primary constraint.

Q: What does AEC-Q100 qualification mean for the 74HC86D-Q100,118?

A: AEC-Q100 is the Automotive Electronics Council qualification standard for integrated circuits used in automotive applications. The 74HC86D-Q100,118 meets this qualification, making it suitable for automotive designs. Non-automotive variants do not carry this qualification and should not be used in automotive applications without additional validation.

Q: Are all substitute parts RoHS3 compliant?

A: Most substitute parts listed are RoHS3 compliant. The MC74HC86ADR2G and MM74HC86M do not specify RoHS status in the provided data. Verify RoHS compliance with the manufacturer if this is a design requirement.

Q: Can I mix different manufacturers' parts in the same design?

A: Yes. All recommended substitute parts meet identical XOR logic specifications, package dimensions, and electrical parameters. They are pin-compatible and functionally interchangeable. However, verify that your PCB assembly process and supply chain can accommodate multiple manufacturer sources if needed.

Q: What is the difference between 14-SOIC and 14-SO packaging?

A: Both designations refer to the same 14-pin Small Outline Integrated Circuit package with 0.154" (3.90mm) width. The terminology varies by manufacturer but the physical dimensions and pin configuration are identical. Parts specified as 14-SOIC and 14-SO are mechanically and electrically interchangeable.

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