74LVC30ABQX Equivalent & Substitute Parts

Part Overview

The 74LVC30ABQX is a NAND Gate IC featuring 1 channel with 8 inputs in a 14-DHVQFN (2.5x3) surface mount package, manufactured by Nexperia USA Inc. This component operates across a supply voltage range of 1.2V to 3.6V and is designed for low-voltage logic applications. The product status is listed as Obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Logic Type	NAND Gate
Number of Circuits	1
Number of Inputs	8
Voltage - Supply	1.2V ~ 3.6V
Current - Quiescent (Max)	40 µA
Current - Output High, Low	24mA, 24mA
Input Logic Level - Low	0.12V ~ 0.8V
Input Logic Level - High	1.08V ~ 2V
Max Propagation Delay @ V, Max CL	6.3ns @ 3.3V, 50pF
Operating Temperature	-40°C ~ 125°C
Package / Case	14-VFQFN Exposed Pad
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74LVC30ABQX is determined by the following critical parameters:

Logic function: NAND Gate with 1 channel and 8 inputs
Package compatibility: 14-VFQFN Exposed Pad surface mount form factor
Operating temperature range: -40°C to 125°C
Supply voltage compatibility: The substitute must operate within or encompass the original supply voltage range
Output drive capability: Current sourcing and sinking capacity
Propagation delay characteristics
Compliance certifications: RoHS3, REACH, and MSL ratings

The 74AHC30BQ,115 qualifies as a substitute based on identical logic configuration, package type, temperature range, and compliance status. Voltage supply range differences and quiescent current variations are acceptable within the substitution criteria for this product category.

Parameter Comparison

Parameter	74LVC30ABQX	74AHC30BQ,115
Logic Type	NAND Gate	NAND Gate
Number of Circuits	1	1
Number of Inputs	8	8
Voltage - Supply	1.2V ~ 3.6V	2V ~ 5.5V
Current - Quiescent (Max)	40 µA	2 µA
Current - Output High, Low	24mA, 24mA	8mA, 8mA
Input Logic Level - Low	0.12V ~ 0.8V	0.5V ~ 1.65V
Input Logic Level - High	1.08V ~ 2V	1.5V ~ 3.85V
Max Propagation Delay @ V, Max CL	6.3ns @ 3.3V, 50pF	8ns @ 5V, 50pF
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	14-VFQFN Exposed Pad	14-VFQFN Exposed Pad
Mounting Type	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active

Engineering Selection Recommendations

The 74AHC30BQ,115 is a direct functional substitute for the 74LVC30ABQX. Both components share identical logic configuration, package form factor, and operating temperature specifications. The substitute part carries Active product status, ensuring long-term availability and supply chain continuity compared to the Obsolete status of the original part.

Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), meeting equivalent environmental and regulatory requirements. The substitute operates across a wider supply voltage range (2V ~ 5.5V versus 1.2V ~ 3.6V), providing greater flexibility in system design. The 74AHC30BQ,115 exhibits lower quiescent current consumption (2 µA versus 40 µA) and reduced output drive capability (8mA versus 24mA), which are acceptable trade-offs for applications where the original specifications are not critical constraints.

Frequently Asked Questions (FAQ)

Q: Can the 74AHC30BQ,115 directly replace the 74LVC30ABQX in existing designs?

A: Yes, the 74AHC30BQ,115 provides direct functional replacement. Both parts feature identical NAND gate logic configuration with 8 inputs, the same 14-VFQFN package, and matching operating temperature ranges. Design verification is required to confirm that the differences in supply voltage range, output drive current, and propagation delay do not impact system performance.

Q: What are the key differences between these two parts?

A: The primary differences are supply voltage range (74LVC30ABQX: 1.2V ~ 3.6V; 74AHC30BQ,115: 2V ~ 5.5V), quiescent current (40 µA versus 2 µA), output drive capability (24mA versus 8mA), and product status (Obsolete versus Active). The 74AHC30BQ,115 offers improved power efficiency and extended supply voltage compatibility.

Q: Are the input logic levels compatible between these parts?

A: Input logic level thresholds differ between the two parts. The 74LVC30ABQX operates with lower thresholds (0.12V ~ 0.8V for low, 1.08V ~ 2V for high), while the 74AHC30BQ,115 requires higher thresholds (0.5V ~ 1.65V for low, 1.5V ~ 3.85V for high). System design must account for these differences when interfacing with signal sources.

Q: Is the package footprint identical for both parts?

A: Yes, both parts use the 14-VFQFN Exposed Pad surface mount package with identical dimensions (2.5x3mm). PCB layout and reflow profiles remain compatible between the two parts.

Q: What compliance certifications apply to both parts?

A: Both the 74LVC30ABQX and 74AHC30BQ,115 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. Both parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

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