74HC00DR2G NAND Gate IC Equivalent & Substitute Parts

Part Overview

The 74HC00DR2G is a quad 2-input NAND gate logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This part is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The 74HC00 series represents a standard logic function across multiple manufacturers, with several active alternatives available that maintain functional and electrical compatibility within specified parameter ranges.

Key Parameters

Parameter	Value
Logic Type	NAND Gate
Number of Circuits	4
Number of Inputs	2
Voltage Supply Range	2V to 6V
Package Type	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Operating Temperature Range	-55°C to 125°C
Max Propagation Delay	13ns @ 6V, 50pF
Current - Quiescent (Max)	2 µA
Current - Output High/Low	5.2mA / 5.2mA
Input Logic Level - Low	0.5V to 1.8V
Input Logic Level - High	1.5V to 4.2V
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74HC00DR2G is determined by strict adherence to the following electrical and mechanical parameters:

Critical Substitution Parameters:

Logic function: Quad 2-input NAND gate
Package: 14-SOIC surface mount form factor
Supply voltage range: 2V to 6V minimum
Operating temperature range: Must support -55°C to 125°C or equivalent industrial range
Propagation delay: 13ns or faster at 6V, 50pF load
Output current capability: 5.2mA minimum for both high and low states
Input logic thresholds: 0.5V to 1.8V (low), 1.5V to 4.2V (high)

Substitute parts are grouped into two categories:

Parametric Equivalents: Parts meeting or exceeding all electrical specifications of the 74HC00DR2G, including the full -55°C to 125°C temperature range and 13ns propagation delay specification.

Similar Alternatives: Parts with compatible logic function and package but with relaxed temperature ranges (-40°C to 85°C) or slightly higher propagation delays (15ns), suitable for applications not requiring the full industrial temperature specification.

Parameter Comparison

Part Number	Manufacturer	Product Status	Temp Range	Prop Delay (ns)	Quiescent Current (µA)	Packaging	RoHS Status
74HC00DR2G	onsemi	Obsolete	-55 to 125°C	13 @ 6V	2	14-SOIC	REACH Unaffected
MC74HC00ADR2G	onsemi	Active	-55 to 125°C	13 @ 6V	1	14-SOIC	ROHS3 Compliant
CD74HC00M96	Texas Instruments	Active	-55 to 125°C	15 @ 6V	2	14-SOIC	ROHS3 Compliant
CD74HC00MT	Texas Instruments	Discontinued at DiGi Electronics	-55 to 125°C	15 @ 6V	2	14-SOIC	ROHS3 Compliant
MM74HC00M	onsemi	Active	-40 to 85°C	15 @ 6V	2	14-SOIC	ROHS3 Compliant
MM74HC00MX	Fairchild Semiconductor	Active	-40 to 85°C	15 @ 6V	2	14-SOIC	Not specified
74HC00D,653	Nexperia USA Inc.	Active	-40 to 125°C	7 @ 6V	40	14-SO	ROHS3 Compliant
SN74HC00DR	Texas Instruments	Active	-40 to 85°C	15 @ 6V	2	14-SOIC	ROHS3 Compliant
SN74HC00D	Texas Instruments	Discontinued at DiGi Electronics	-40 to 85°C	15 @ 6V	2	14-SOIC	ROHS3 Compliant
SN74HC00DG4	Texas Instruments	Discontinued at DiGi Electronics	-40 to 85°C	15 @ 6V	2	14-SOIC	ROHS3 Compliant
CD74HC00M	Harris Corporation	Obsolete	-55 to 125°C	15 @ 6V	2	14-SOIC	RoHS non-compliant

Engineering Selection Recommendations

First Choice for Full Specification Replacement: MC74HC00ADR2G (onsemi) is the primary parametric equivalent. It maintains the complete -55°C to 125°C operating range, matches the 13ns propagation delay specification, and improves quiescent current performance to 1 µA. This part is currently active and ROHS3 compliant, making it suitable for new designs and long-term availability.

Alternative for Industrial Temperature Range: CD74HC00M96 (Texas Instruments) or CD74HC00MT (Texas Instruments) provide the full -55°C to 125°C temperature range with 15ns propagation delay. Both are ROHS3 compliant and active, though CD74HC00MT is discontinued at DiGi Electronics. These parts are acceptable where the 2ns additional propagation delay does not impact system timing.

Commercial Temperature Range Alternatives: SN74HC00DR (Texas Instruments) is an active part with -40°C to 85°C operating range, 15ns propagation delay, and ROHS3 compliance. This option is suitable for commercial and industrial applications not requiring the extended low-temperature specification.

Not Recommended: CD74HC00M (Harris Corporation) is obsolete and RoHS non-compliant. 74HC00D,653 (Nexperia) exhibits significantly higher quiescent current (40 µA) and is not suitable as a direct replacement. MM74HC00M and MM74HC00MX are limited to -40°C to 85°C and should only be used where this temperature range is acceptable.

Frequently Asked Questions (FAQ)

Q: Can I use MM74HC00M as a direct replacement for 74HC00DR2G? A: MM74HC00M is functionally compatible but operates only to 85°C maximum, compared to the 125°C specification of 74HC00DR2G. Use only if your application does not require the extended temperature range.

Q: What is the difference between MC74HC00ADR2G and CD74HC00M96? A: Both support -55°C to 125°C operation. MC74HC00ADR2G has 13ns propagation delay and 1 µA quiescent current. CD74HC00M96 has 15ns propagation delay and 2 µA quiescent current. MC74HC00ADR2G is the closer match to original specifications.

Q: Are all substitute parts in 14-SOIC packaging? A: Yes, all listed substitutes use 14-SOIC surface mount packaging with 0.154" width (3.90mm), ensuring mechanical compatibility with the original 74HC00DR2G footprint. The exception is 74HC00D,653, which uses 14-SO packaging but maintains the same physical dimensions.

Q: Why is 74HC00D,653 not recommended despite being active? A: This part exhibits 40 µA quiescent current, significantly higher than the 2 µA specification of 74HC00DR2G. This 20x increase in standby current makes it unsuitable for power-sensitive applications.

Q: What does ROHS3 compliance mean for my design? A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead and other hazardous materials. This is required for most commercial and industrial applications sold in regulated markets.

Q: Can I use SN74HC00DR in a -55°C application? A: No. SN74HC00DR operates only to -40°C minimum. For applications requiring -55°C operation, use MC74HC00ADR2G or CD74HC00M96.

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