74HC86DR2G XOR Logic IC Equivalent & Substitute Parts

Part Overview

The 74HC86DR2G is a 4-channel, 2-input XOR (Exclusive OR) logic integrated circuit manufactured by onsemi in 14-SOIC surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The 74HC86 series represents a standard logic function across multiple manufacturers, with several active alternatives available 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 to 6V
Quiescent Current (Max)	2 µA
Output Current (High/Low)	5.2 mA / 5.2 mA
Input Logic Level Low	0.5V to 1.8V
Input Logic Level High	1.5V to 4.2V
Max Propagation Delay	17 ns @ 6V, 50pF
Operating Temperature Range	-55°C to 125°C
Package Type	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution of the 74HC86DR2G is determined by strict equivalence in the following electrical and mechanical parameters:

Logic function: 4-channel, 2-input XOR gate
Supply voltage range: 2V to 6V minimum
Package: 14-SOIC surface mount form factor
Output drive capability: 5.2 mA minimum
Input logic thresholds: 0.5V to 1.8V (low), 1.5V to 4.2V (high)

Substitute parts are grouped into two categories based on performance characteristics:

Direct Equivalents maintain all electrical parameters including propagation delay (17 ns @ 6V, 50pF) and extended temperature range (-55°C to 125°C).

Functional Equivalents provide the same logic function with acceptable variations in propagation delay (up to 20 ns @ 6V, 50pF) and may have narrower operating temperature ranges (-40°C to 85°C or -40°C to 125°C), suitable for standard industrial applications.

Parameter Comparison

Part Number	Manufacturer	Product Status	Voltage Supply	Quiescent Current (Max)	Propagation Delay @ 6V, 50pF	Operating Temperature	Package
74HC86DR2G	onsemi	Obsolete	2V to 6V	2 µA	17 ns	-55°C to 125°C	14-SOIC
MM74HC86M	Fairchild Semiconductor	Active	2V to 6V	2 µA	20 ns	-40°C to 85°C	14-SOIC
MM74HC86MX	Fairchild Semiconductor	Active	2V to 6V	2 µA	20 ns	-40°C to 85°C	14-SOIC
MC74HC86ADR2G	Fairchild Semiconductor	Active	2V to 6V	1 µA	17 ns	-55°C to 125°C	14-SOIC
74HC86D,653	Nexperia USA Inc.	Active	2V to 6V	2 µA	20 ns	-40°C to 125°C	14-SOIC
CD74HC86M	Texas Instruments	Obsolete	2V to 6V	2 µA	20 ns	-55°C to 125°C	14-SOIC
CD74HC86M96	Texas Instruments	Active	2V to 6V	2 µA	20 ns	-55°C to 125°C	14-SOIC
CD74HC86MT	Texas Instruments	Discontinued at DiGi Electronics	2V to 6V	2 µA	20 ns	-55°C to 125°C	14-SOIC
SN74HC86D	Texas Instruments	Discontinued at DiGi Electronics	2V to 6V	2 µA	17 ns	-40°C to 85°C	14-SOIC
SN74HC86DR	Texas Instruments	Active	2V to 6V	2 µA	17 ns	-40°C to 85°C	14-SOIC
SN74HC86DT	Texas Instruments	Discontinued at DiGi Electronics	2V to 6V	2 µA	17 ns	-40°C to 85°C	14-SOIC

Engineering Selection Recommendations

For Extended Temperature Range Applications (-55°C to 125°C):

MC74HC86ADR2G (Fairchild Semiconductor, Active) is the primary direct equivalent. This part matches the original 74HC86DR2G in propagation delay (17 ns @ 6V, 50pF) and operating temperature range while offering improved quiescent current performance (1 µA vs. 2 µA). Active product status ensures long-term availability.

CD74HC86M96 (Texas Instruments, Active) provides an alternative with extended temperature range and active status, though propagation delay is 20 ns. This part is suitable where the 3 ns delay increase is acceptable.

For Standard Industrial Temperature Range (-40°C to 85°C):

SN74HC86DR (Texas Instruments, Active) offers direct electrical equivalence with 17 ns propagation delay and active product status, making it suitable for applications not requiring extended low-temperature operation.

MM74HC86MX (Fairchild Semiconductor, Active) provides functional equivalence with 20 ns propagation delay and high inventory availability (22,700 pcs).

For Cost-Optimized Procurement:

MM74HC86MX offers the highest inventory level (22,700 pcs) among active parts, supporting volume procurement with minimal lead time risk.

Packaging Considerations:

All listed substitutes maintain the 14-SOIC surface mount package. Packaging variants (Bulk, Cut Tape, Tape & Reel, Tube) are available across manufacturers to match assembly and procurement workflows.

Frequently Asked Questions (FAQ)

Q: Can MM74HC86M replace 74HC86DR2G in all applications?

A: MM74HC86M is functionally equivalent but operates over -40°C to 85°C versus the original -55°C to 125°C range. Substitution is valid for applications within the -40°C to 85°C window. Propagation delay increases from 17 ns to 20 ns, which is acceptable for most logic applications but should be verified in timing-critical designs.

Q: What is the difference between MC74HC86ADR2G and the original 74HC86DR2G?

A: MC74HC86ADR2G is a direct electrical equivalent with identical propagation delay (17 ns) and temperature range (-55°C to 125°C). The primary difference is lower quiescent current (1 µA vs. 2 µA), representing improved power efficiency. Fairchild Semiconductor maintains active product status, ensuring availability.

Q: Are there differences between CD74HC86M96 and CD74HC86MT?

A: Both parts are functionally identical with 20 ns propagation delay and -55°C to 125°C operating range. The difference is packaging: CD74HC86M96 is supplied in Cut Tape & Digi-Reel format (Active status), while CD74HC86MT is Tape & Reel format (Discontinued at DiGi Electronics). CD74HC86M96 is recommended for new designs.

Q: Why do some parts show "Discontinued at DiGi Electronics" status?

A: Discontinuation at DiGi Electronics indicates the distributor has ended active sales, though the manufacturer may continue production. These parts should not be selected for new designs. Active status parts are recommended for design continuity.

Q: Can I use SN74HC86DR instead of SN74HC86DT?

A: Yes. Both are Texas Instruments 74HC86 variants with identical electrical specifications (17 ns propagation delay, 2V to 6V supply). SN74HC86DR (Cut Tape & Digi-Reel, Active) is preferred over SN74HC86DT (Tape & Reel, Discontinued at DiGi Electronics) for new procurement.

Q: What is the significance of the 14-SOIC package specification?

A: All listed substitutes use the 14-SOIC (0.154", 3.90mm Width) surface mount package, ensuring mechanical and electrical compatibility with existing PCB layouts. No package conversion is required.

Q: How does quiescent current affect part selection?

A: Quiescent current (2 µA typical, 1 µA for MC74HC86ADR2G) represents standby power consumption. For battery-powered or low-power applications, MC74HC86ADR2G offers a 50% reduction. For standard applications, the difference is negligible.

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