SN74HC86D XOR Logic IC Equivalent & Substitute Parts

Part Overview

The SN74HC86D is a 4-channel, 2-input XOR (Exclusive OR) logic gate integrated circuit manufactured by Texas Instruments in a 14-SOIC surface mount package. This part is currently discontinued at DiGi Electronics, making substitute parts necessary for ongoing design requirements and production needs. The 74HC86 logic family provides standard XOR functionality across multiple manufacturers with compatible electrical and mechanical specifications.

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	17ns
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)
Base Product Number	74HC86
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SN74HC86D are qualified based on the following criteria:

Functional Equivalence: All substitute parts maintain the same logic type (XOR), circuit count (4 channels), and input configuration (2-input) as the original part.

Electrical Compatibility: Substitute parts operate within the same or compatible voltage supply range (2V ~ 6V), maintain equivalent output current specifications (5.2mA), and support identical input logic levels (0.5V ~ 1.8V for low, 1.5V ~ 4.2V for high).

Package Compatibility: All substitute parts use the 14-SOIC surface mount package with identical physical dimensions (0.154", 3.90mm width), ensuring direct PCB footprint compatibility.

Temperature Range: Substitute parts operate within the original temperature range (-40°C ~ 85°C) or extended ranges, with no functional degradation within the original specification window.

Propagation Delay: Substitute parts maintain propagation delay specifications at or better than the original 17ns @ 6V, 50pF, with acceptable variations within the 74HC logic family standard.

Compliance: All substitute parts maintain ROHS3 compliance and MSL Level 1 rating, matching the original part's environmental and regulatory status.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Logic Type	Circuits	Inputs	Voltage Supply	Quiescent Current (Max)	Output Current H/L	Propagation Delay @ 6V	Operating Temp	Package	Product Status
SN74HC86D	Texas Instruments	XOR	4	2	2V ~ 6V	2 µA	5.2mA / 5.2mA	17ns	-40°C ~ 85°C	14-SOIC	Discontinued
SN74HC86DR	Texas Instruments	XOR	4	2	2V ~ 6V	2 µA	5.2mA / 5.2mA	17ns	-40°C ~ 85°C	14-SOIC	Active
MC74HC86ADR2G	Fairchild Semiconductor	XOR	4	2	2V ~ 6V	1 µA	5.2mA / 5.2mA	17ns	-55°C ~ 125°C	14-SOIC	Active
74HC86D,653	Nexperia USA Inc.	XOR	4	2	2V ~ 6V	2 µA	5.2mA / 5.2mA	20ns	-40°C ~ 125°C	14-SOIC	Active
74HC86D-Q100,118	Nexperia USA Inc.	XOR	4	2	2V ~ 6V	2 µA	5.2mA / 5.2mA	20ns	-40°C ~ 125°C	14-SOIC	Active
74HC86S14-13	Diodes Incorporated	XOR	4	2	2V ~ 6V	20 µA	5.2mA / 5.2mA	15ns	-40°C ~ 125°C	14-SOIC	Active
MC74HC86ADG	onsemi	XOR	4	2	2V ~ 6V	1 µA	5.2mA / 5.2mA	17ns	-55°C ~ 125°C	14-SOIC	Active
MM74HC86M	Fairchild Semiconductor	XOR	4	2	2V ~ 6V	2 µA	5.2mA / 5.2mA	20ns	-40°C ~ 85°C	14-SOIC	Active
MM74HC86MX	Fairchild Semiconductor	XOR	4	2	2V ~ 6V	2 µA	5.2mA / 5.2mA	20ns	-40°C ~ 85°C	14-SOIC	Active
NLV74HC86ADG	onsemi	XOR	4	2	2V ~ 6V	1 µA	5.2mA / 5.2mA	26ns	-55°C ~ 125°C	14-SOIC	Obsolete

Engineering Selection Recommendations

Primary Recommendation: SN74HC86DR (Texas Instruments) provides direct functional and electrical equivalence to the SN74HC86D with identical specifications and active product status. This part maintains the same manufacturer lineage and is available in Cut Tape and Digi-Reel packaging formats.

Extended Temperature Range Options: MC74HC86ADR2G (Fairchild Semiconductor) and MC74HC86ADG (onsemi) both offer extended operating temperature ranges (-55°C ~ 125°C) with lower quiescent current (1 µA) compared to the original specification. These parts are suitable for applications requiring broader temperature performance.

Automotive Grade Selection: 74HC86D-Q100,118 (Nexperia USA Inc.) is qualified to AEC-Q100 automotive standards and provides extended temperature range (-40°C ~ 125°C) for automotive and industrial applications requiring formal qualification documentation.

High-Volume Availability: 74HC86S14-13 (Diodes Incorporated) offers the largest inventory (47,800 pcs) with improved propagation delay (15ns) and extended temperature range (-40°C ~ 125°C), suitable for high-volume production requirements.

Obsolete Parts: NLV74HC86ADG (onsemi) is marked as obsolete and should be avoided for new designs despite AEC-Q100 qualification. Existing inventory is limited (848 pcs).

Non-Equivalent Part: 74HCT244D,653 (Nexperia USA Inc.) is a buffer IC with different logic type and package configuration (20-SOIC) and is not functionally equivalent to the SN74HC86D XOR gate.

Frequently Asked Questions (FAQ)

Q: Can I directly replace SN74HC86D with SN74HC86DR? A: Yes. SN74HC86DR is a direct substitute with identical electrical specifications, operating temperature range, and 14-SOIC package. The only difference is packaging format (Cut Tape/Digi-Reel vs. Tube).

Q: What is the difference between the 74HC86 variants from different manufacturers? A: All 74HC86 variants maintain the same core XOR logic functionality, circuit count, and package. Differences exist in quiescent current (1 µA to 20 µA), propagation delay (15ns to 26ns), operating temperature ranges, and product status. These variations remain within 74HC logic family specifications.

Q: Is the 74HCT244D,653 a suitable substitute? A: No. The 74HCT244D,653 is a buffer IC with different logic type (non-inverting buffer), different element count (2 elements), and different package (20-SOIC). It is not functionally equivalent to the XOR gate SN74HC86D.

Q: Which substitute part should I use for automotive applications? A: The 74HC86D-Q100,118 (Nexperia USA Inc.) is qualified to AEC-Q100 automotive standards and provides the required qualification documentation for automotive designs.

Q: Are all substitute parts ROHS3 compliant? A: All listed substitute parts maintain ROHS3 compliance and MSL Level 1 rating, matching the environmental and regulatory status of the original SN74HC86D.

Q: What is the impact of different propagation delays on circuit performance? A: Propagation delay variations (15ns to 26ns) remain within acceptable 74HC logic family tolerances. The original SN74HC86D specifies 17ns; substitute parts with 15ns to 20ns propagation delay provide equivalent or improved timing performance. Parts with 26ns delay (NLV74HC86ADG) may require timing analysis for critical path applications.

Q: Can I use parts with extended temperature ranges in place of the original -40°C ~ 85°C specification? A: Yes. Parts with extended temperature ranges (-55°C ~ 125°C) are fully compatible and provide additional operational margin. They maintain all electrical specifications within the original temperature window.

Q: What packaging options are available for substitute parts? A: All substitute parts use the 14-SOIC surface mount package with identical physical dimensions. Packaging formats vary (Tube, Cut Tape, Digi-Reel, Tape & Reel, Bulk) but do not affect PCB compatibility.

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