MM74HC86SJX XOR Logic IC Equivalent & Substitute Parts

Part Overview

The MM74HC86SJX is a 4-channel, 2-input XOR (Exclusive OR) logic gate IC manufactured by onsemi in 14-SOP surface mount packaging. This part is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The 74HC86 base product family provides multiple active alternatives across different manufacturers and packaging options that maintain functional and electrical compatibility.

Key Parameters

Parameter	Value
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	-40°C ~ 85°C
Mounting Type	Surface Mount
Base Product Number	74HC86
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the MM74HC86SJX is determined by strict adherence to the following electrical and mechanical parameters:

Core Electrical Parameters (Must Match):

Logic Type: XOR (Exclusive OR)
Number of Circuits: 4
Number of Inputs: 2
Voltage Supply Range: 2V ~ 6V
Input Logic Levels: Low 0.5V ~ 1.8V, High 1.5V ~ 4.2V
Output Current: 5.2mA / 5.2mA
Quiescent Current: 2 µA (standard grade)

Mechanical Parameters (Compatible):

Mounting Type: Surface Mount
Base Product Number: 74HC86
MSL Rating: 1 (Unlimited)

Acceptable Variations:

Propagation Delay: 17ns to 25ns @ 6V, 50pF (within logic timing tolerance)
Operating Temperature: -40°C ~ 85°C minimum; extended range (-55°C ~ 125°C) acceptable
Package Case: 14-SOIC variants (0.154" or 0.209" width) are mechanically compatible
Packaging Format: Tube, Tape & Reel, or Cut Tape acceptable for equivalent function
Product Status: Active or Discontinued at DiGi Electronics acceptable; Obsolete requires active alternative

Non-Substitutable Variants:

Automotive-grade parts (SN74HC86IDRG4Q1, SN74HC86QDRG4Q1) with AEC-Q100 qualification and elevated quiescent current (20µA, 40µA) are functionally different and not direct substitutes for commercial-grade applications.

Parameter Comparison

Part Number	Manufacturer	Voltage Supply	Quiescent Current (Max)	Propagation Delay @ 6V, 50pF	Operating Temp	Package / Case	Product Status	RoHS Status
MM74HC86SJX	onsemi	2V ~ 6V	2 µA	20ns	-40°C ~ 85°C	14-SOIC (0.209", 5.30mm)	Obsolete	Not specified
74HC86D,653	Nexperia USA Inc.	2V ~ 6V	2 µA	20ns	-40°C ~ 125°C	14-SOIC (0.154", 3.90mm)	Active	ROHS3 Compliant
CD74HC86M	Texas Instruments	2V ~ 6V	2 µA	20ns	-55°C ~ 125°C	14-SOIC (0.154", 3.90mm)	Obsolete	ROHS3 Compliant
CD74HC86M96	Texas Instruments	2V ~ 6V	2 µA	20ns	-55°C ~ 125°C	14-SOIC (0.154", 3.90mm)	Active	ROHS3 Compliant
CD74HC86MT	Texas Instruments	2V ~ 6V	2 µA	20ns	-55°C ~ 125°C	14-SOIC (0.154", 3.90mm)	Discontinued at DiGi Electronics	ROHS3 Compliant
SN74HC86D	Texas Instruments	2V ~ 6V	2 µA	17ns	-40°C ~ 85°C	14-SOIC (0.154", 3.90mm)	Discontinued at DiGi Electronics	ROHS3 Compliant
SN74HC86DR	Texas Instruments	2V ~ 6V	2 µA	17ns	-40°C ~ 85°C	14-SOIC (0.154", 3.90mm)	Active	ROHS3 Compliant
SN74HC86DT	Texas Instruments	2V ~ 6V	2 µA	17ns	-40°C ~ 85°C	14-SOIC (0.154", 3.90mm)	Discontinued at DiGi Electronics	ROHS3 Compliant
SN74HC86NSR	Texas Instruments	2V ~ 6V	2 µA	17ns	-40°C ~ 85°C	14-SOIC (0.209", 5.30mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation for Direct Replacement:

SN74HC86NSR (Texas Instruments) is the optimal substitute for MM74HC86SJX. Both parts share identical package dimensions (14-SOIC, 0.209" width), matching the original PCB footprint without layout modification. SN74HC86NSR maintains active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment.

Alternative Recommendations:

SN74HC86DR (Texas Instruments, Active) – Functionally equivalent with improved propagation delay (17ns vs. 20ns). Uses narrower 14-SOIC package (0.154" width), requiring PCB footprint verification for compatibility.
74HC86D,653 (Nexperia USA Inc., Active) – Active product status with extended operating temperature range (-40°C ~ 125°C). Narrower package footprint requires PCB assessment.
CD74HC86M96 (Texas Instruments, Active) – Extended temperature range (-55°C ~ 125°C) suitable for industrial applications. Narrower package footprint requires PCB assessment.

Discontinued Alternatives (Not Recommended for New Designs):

CD74HC86M, CD74HC86MT, SN74HC86D, and SN74HC86DT are discontinued at DiGi Electronics and should not be selected for new production designs despite functional equivalence.

Excluded Parts:

SN74HC86IDRG4Q1 and SN74HC86QDRG4Q1 are automotive-grade variants with AEC-Q100 qualification and elevated quiescent current specifications (20µA and 40µA respectively). These are not direct substitutes for commercial-grade applications.

Frequently Asked Questions (FAQ)

Q: Can I use a narrower 14-SOIC package (0.154" width) as a substitute for the original 14-SOIC (0.209" width)?

A: Narrower packages are mechanically compatible with wider footprints on PCBs designed for the larger package, as the lead pitch and pin count remain identical. However, verify your PCB layout to confirm the footprint accommodates the narrower body width. If your design uses a tight footprint optimized for the 0.209" width, the 0.154" package will fit without issue.

Q: What is the difference between propagation delay specifications of 17ns and 20ns?

A: Both values fall within acceptable logic timing tolerances for the 74HC86 family. The 17ns specification (SN74HC86DR, SN74HC86D, SN74HC86DT, SN74HC86NSR) represents faster switching performance compared to the 20ns specification. For most applications, this difference is negligible. Verify your circuit timing requirements to confirm either specification is acceptable.

Q: Why are automotive-grade parts (SN74HC86IDRG4Q1, SN74HC86QDRG4Q1) not recommended as substitutes?

A: Automotive-grade variants have different quiescent current specifications (20µA and 40µA respectively) compared to the standard 2µA specification. This elevated current consumption changes power budget calculations and thermal characteristics, making them functionally different for commercial-grade applications. Use automotive variants only when AEC-Q100 qualification is explicitly required.

Q: Is ROHS3 compliance required for my application?

A: ROHS3 compliance is a regulatory requirement in many markets. All active substitute parts listed (74HC86D,653, CD74HC86M96, SN74HC86DR, SN74HC86NSR) carry ROHS3 Compliant status. The original MM74HC86SJX does not specify RoHS status; verify your application requirements before selection.

Q: Can I substitute parts with extended operating temperature ranges (-55°C ~ 125°C) in place of the standard range (-40°C ~ 85°C)?

A: Extended temperature range parts (CD74HC86M, CD74HC86M96) are functionally compatible and provide broader environmental tolerance. They are suitable for applications requiring wider temperature operation. Standard temperature range parts are adequate for applications within -40°C ~ 85°C limits.

Q: What packaging formats are available, and do they affect functionality?

A: Substitute parts are available in Tube, Tape & Reel (TR), and Cut Tape (CT) & Digi-Reel® formats. Packaging format affects handling and storage but does not alter electrical or functional characteristics. Select based on your procurement and assembly process requirements.

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