CD74HC03MT NAND Gate IC Equivalent & Substitute Parts

Part Overview

The CD74HC03MT is a 4-channel, 2-input NAND gate IC manufactured by Texas Instruments in a 14-SOIC surface mount package. This logic gate features open drain outputs and operates across a 2V to 6V supply voltage range. The part is currently in Last Time Buy status, making identification of equivalent and substitute components essential for design continuity and procurement planning. Alternative parts meeting the same electrical and mechanical specifications ensure uninterrupted supply chain access for applications requiring this logic function.

Key Parameters

Parameter	Value
Logic Type	NAND Gate
Number of Circuits	4
Number of Inputs	2
Features	Open Drain
Voltage - Supply	2V ~ 6V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	-, 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	-55°C ~ 125°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CD74HC03MT is determined by strict equivalence across the following critical parameters: logic type (NAND gate), circuit count (4 channels), input count (2 inputs per gate), output configuration (open drain), supply voltage range (2V ~ 6V), package type (14-SOIC), and mounting method (surface mount). All substitute parts must maintain compatibility with these core specifications to ensure functional and mechanical interchangeability.

The substitute parts are grouped into three categories based on their relationship to the main part:

Parametric Equivalent: CD74HC03M96 (Texas Instruments) — Identical electrical specifications and packaging, differing only in product status (Active vs. Last Time Buy).

Direct Manufacturer Alternative: MC74HC03ADR2G (onsemi) — Meets all core electrical and mechanical requirements with minor variations in quiescent current (1 µA vs. 2 µA) and propagation delay (20ns vs. 17ns), both within acceptable tolerance for logic gate applications.

Manufacturer Recommended Alternatives: 74HC03D,653 (NXP Semiconductors), MC74HC03ADG (onsemi), and NLV74HC03ADR2G (onsemi) — All maintain the 74HC03 base product number and core functional specifications. Packaging and product status vary to accommodate different procurement and application requirements.

Parameter Comparison

Parameter	CD74HC03MT (Main)	CD74HC03M96	MC74HC03ADR2G	MC74HC03ADG	NLV74HC03ADR2G
Manufacturer	Texas Instruments	Texas Instruments	onsemi	onsemi	onsemi
Logic Type	NAND Gate	NAND Gate	NAND Gate	NAND Gate	NAND Gate
Number of Circuits	4	4	4	4	4
Number of Inputs	2	2	2	2	2
Features	Open Drain	Open Drain	Open Drain	Open Drain	Open Drain
Voltage - Supply	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V
Current - Quiescent (Max)	2 µA	2 µA	1 µA	1 µA	1 µA
Current - Output High, Low	-, 5.2mA	-, 5.2mA	-, 5.2mA	-, 5.2mA	-, 5.2mA
Input Logic Level - Low	0.5V ~ 1.8V	0.5V ~ 1.8V	0.5V ~ 1.8V	0.5V ~ 1.8V	0.5V ~ 1.8V
Input Logic Level - High	1.5V ~ 4.2V	1.5V ~ 4.2V	1.5V ~ 4.2V	1.5V ~ 4.2V	1.5V ~ 4.2V
Max Propagation Delay @ 6V, 50pF	17ns	17ns	20ns	20ns	31ns
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Last Time Buy	Active	Active	Active	Obsolete
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

CD74HC03M96 is the primary substitute for the CD74HC03MT. Both parts are manufactured by Texas Instruments with identical electrical specifications and 14-SOIC packaging. The CD74HC03M96 maintains Active product status, ensuring long-term availability and supply chain stability compared to the Last Time Buy status of the main part.

MC74HC03ADR2G and MC74HC03ADG are viable alternatives from onsemi. Both parts meet all core functional requirements with equivalent logic operation, package type, and thermal range. The MC74HC03ADR2G is supplied in Cut Tape and Digi-Reel packaging, while MC74HC03ADG is supplied in Tube packaging. Both exhibit slightly lower quiescent current (1 µA) and marginally higher propagation delay (20ns), which remain within acceptable operating parameters for standard logic applications.

NLV74HC03ADR2G is an onsemi part with Automotive grade qualification (AEC-Q100) and Obsolete product status. This part is suitable only for applications requiring automotive-grade components and where existing inventory is available. The 31ns propagation delay is notably higher and may not be suitable for timing-critical applications.

74HC03D,653 from NXP Semiconductors is a manufacturer-recommended alternative supplied in Bulk packaging. Limited parameter data is provided for this part; verification against complete datasheet specifications is necessary before selection.

All substitute parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can CD74HC03M96 be used as a direct replacement for CD74HC03MT?

A: Yes. CD74HC03M96 is a parametric equivalent with identical electrical specifications, supply voltage range, logic configuration, and 14-SOIC package. The only difference is product status; CD74HC03M96 is Active while CD74HC03MT is Last Time Buy.

Q: What are the differences between the onsemi alternatives (MC74HC03ADR2G and MC74HC03ADG)?

A: Both onsemi parts are functionally equivalent to the main part. The primary difference is packaging: MC74HC03ADR2G is supplied in Cut Tape and Digi-Reel format, while MC74HC03ADG is supplied in Tube. Both exhibit 1 µA quiescent current and 20ns propagation delay at 6V with 50pF load.

Q: Is NLV74HC03ADR2G suitable for non-automotive applications?

A: NLV74HC03ADR2G is qualified to AEC-Q100 automotive standards and carries Obsolete product status. While it meets the core electrical specifications, its higher propagation delay (31ns) and obsolete status make it unsuitable for new designs unless automotive qualification is a specific requirement and existing inventory is available.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL Level 1 rating, meeting standard environmental and manufacturing requirements.

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

A: The 14-SOIC (Small Outline Integrated Circuit) package is a surface mount package with 0.154 inches (3.90mm) width. All substitute parts use this identical package, ensuring mechanical and electrical compatibility with existing PCB layouts and assembly processes.

Q: Can propagation delay differences affect circuit performance?

A: Propagation delay variations (17ns for CD74HC03MT and CD74HC03M96 versus 20ns for MC74HC03ADR2G and MC74HC03ADG) may impact timing-critical applications. For standard logic gate applications, these differences are typically within acceptable tolerance. Applications with strict timing requirements should verify compatibility against circuit specifications.

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