CD74ACT00M NAND Gate IC Equivalent & Substitute Parts

Part Overview

The CD74ACT00M is a 4-channel 2-input NAND gate logic IC manufactured by Texas Instruments in a 14-SOIC surface mount package. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The 74ACT series represents a standard logic family with established pin compatibility and electrical characteristics across multiple manufacturers.

Key Parameters

Parameter	Value
Logic Type	NAND Gate
Number of Circuits	4
Number of Inputs	2
Voltage Supply Range	4.5V ~ 5.5V
Package Type	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Current Output High/Low	24mA / 24mA
Input Logic Level Low	0.8V
Input Logic Level High	2V

Substitute Part Grouping Explanation

Substitution eligibility for the CD74ACT00M is determined by the following criteria:

Mandatory Matching Parameters:

Logic Type: NAND Gate
Number of Circuits: 4
Number of Inputs: 2
Package Type: 14-SOIC
Mounting Type: Surface Mount
Voltage Supply Range: 4.5V ~ 5.5V
Input Logic Levels: Low 0.8V, High 2V
Output Current Capability: 24mA / 24mA

All substitute parts listed meet these core electrical and mechanical requirements, ensuring direct functional equivalence in circuit applications.

Parameter Comparison

Part Number	Manufacturer	Product Status	Quiescent Current (Max)	Propagation Delay @ 5V, 50pF	Operating Temperature	RoHS Compliance	Inventory
CD74ACT00M	Texas Instruments	Discontinued	4 µA	13.2ns	-55°C ~ 125°C	ROHS3 Compliant	2360 Pcs
CD74ACT00M96	Harris Corporation	Obsolete	4 µA	13.2ns	-55°C ~ 125°C	Non-compliant	2925 Pcs
74ACT00SCX	Fairchild Semiconductor	Active	2 µA	9ns	-40°C ~ 85°C	Not specified	40816 Pcs
MC74ACT00DG	onsemi	Active	4 µA	9ns	-55°C ~ 125°C	ROHS3 Compliant	1910 Pcs
MC74ACT00DR2G	onsemi	Active	4 µA	9ns	-55°C ~ 125°C	ROHS3 Compliant	8882 Pcs

Engineering Selection Recommendations

For RoHS3 Compliant Applications: MC74ACT00DG and MC74ACT00DR2G are the primary selections, both manufactured by onsemi with ROHS3 compliance certification. These parts maintain the full operating temperature range of -55°C ~ 125°C and offer improved propagation delay performance at 9ns versus the original 13.2ns specification.

For Extended Temperature Range Requirements: MC74ACT00DG (Tube packaging) and MC74ACT00DR2G (Tape & Reel packaging) support the full -55°C ~ 125°C operating range, matching the original CD74ACT00M specification. These are suitable for industrial and military-grade applications requiring extended temperature operation.

For Active Product Status: All four substitute parts (74ACT00SCX, MC74ACT00DG, MC74ACT00DR2G, and CD74ACT00M96) maintain active or current production status except CD74ACT00M96, which is obsolete. Active parts ensure long-term availability and supply chain continuity.

For Packaging Considerations: MC74ACT00DR2G is supplied in Tape & Reel format suitable for automated assembly processes. MC74ACT00DG is supplied in Tube packaging for manual handling and smaller volume applications.

Frequently Asked Questions (FAQ)

Q: Can I use 74ACT00SCX as a direct replacement for CD74ACT00M? A: Yes, 74ACT00SCX is electrically compatible with identical logic function, pin configuration, and package type. However, its operating temperature range is limited to -40°C ~ 85°C compared to the original -55°C ~ 125°C. Verify your application temperature requirements before selection.

Q: What is the difference between MC74ACT00DG and MC74ACT00DR2G? A: Both parts are manufactured by onsemi with identical electrical specifications and full RoHS3 compliance. The primary difference is packaging: MC74ACT00DG uses Tube packaging for manual handling, while MC74ACT00DR2G uses Tape & Reel format for automated assembly equipment.

Q: Why is CD74ACT00M96 listed if it is obsolete? A: CD74ACT00M96 is included for reference as a known equivalent part. However, its obsolete status and non-RoHS compliance make it unsuitable for new designs. Active alternatives are recommended.

Q: Are all substitute parts pin-compatible with the original CD74ACT00M? A: Yes. All listed substitutes use the 14-SOIC package with identical pin assignments for the 4-channel 2-input NAND gate function.

Q: What does the improved 9ns propagation delay in newer parts mean for my circuit? A: The 9ns propagation delay in 74ACT00SCX, MC74ACT00DG, and MC74ACT00DR2G represents faster signal switching compared to the original 13.2ns specification. This improvement is backward compatible and does not require circuit redesign. Applications with timing-critical requirements benefit from the faster response.

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