74LVC11D,112 Equivalent & Substitute Parts

Part Overview

The 74LVC11D,112 is a 3-channel AND gate logic IC manufactured by Nexperia USA Inc., housed in a 14-SO surface mount package. This component belongs to the 74LVC logic family and is classified as obsolete. The part operates across a wide supply voltage range of 1.2V to 3.6V, making it suitable for low-voltage digital applications. Due to its obsolete status, identifying functionally equivalent substitute parts is essential for design continuity and procurement planning.

Substiute Parts

74LVC11D,112

Nexperia USA Inc.In Stock: 128574LVC11D,112 Datasheet

Current PartRFQ

74LCX11M

Fairchild SemiconductorIn Stock: 445274LCX11M Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74LVC11D,112 is determined by the following critical parameters:

Functional Equivalence: Logic type (AND Gate), number of circuits (3), and number of inputs (3) must remain identical.

Electrical Compatibility: Supply voltage range, quiescent current, output current capabilities, input logic levels, and propagation delay must be compatible with the original design specifications.

Package Compatibility: The 14-SOIC surface mount package must be maintained to ensure PCB layout compatibility.

Operational Range: Operating temperature range must support the intended application environment.

The 74LCX11M qualifies as a substitute based on these criteria, sharing the same logic configuration, package type, and core electrical characteristics within acceptable tolerances.

Parameter Comparison

Engineering Selection Recommendations

The 74LCX11M is a direct functional substitute for the 74LVC11D,112 in applications operating within the 2V to 3.6V supply range. Both parts share identical logic configuration, package geometry, and core electrical performance metrics.

Voltage Consideration: The 74LVC11D,112 supports operation down to 1.2V, while the 74LCX11M minimum is 2V. Applications requiring sub-2V operation cannot use the 74LCX11M substitute.

Temperature Consideration: The 74LVC11D,112 operates to 125°C maximum, while the 74LCX11M is rated to 85°C. Applications requiring operation above 85°C cannot use the 74LCX11M substitute.

Product Status: The 74LCX11M is active and readily available, providing supply chain continuity for the obsolete 74LVC11D,112.

Compliance: Both parts are ROHS3 compliant and carry EAR99 export classification, maintaining regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can the 74LCX11M replace the 74LVC11D,112 in all applications?

A: No. The 74LCX11M is suitable only for applications operating within 2V to 3.6V supply voltage and -40°C to 85°C temperature range. Applications requiring 1.2V minimum supply or operation above 85°C require alternative solutions.

Q: Are the packages physically identical?

A: Yes. Both parts use the 14-SOIC (0.154", 3.90mm Width) surface mount package, ensuring direct PCB layout compatibility without redesign.

Q: What are the key differences between these parts?

A: The primary differences are supply voltage minimum (1.2V vs. 2V), maximum operating temperature (125°C vs. 85°C), and product status (obsolete vs. active). Electrical performance and logic function are equivalent within their respective operating ranges.

Q: Are input logic level thresholds compatible?

A: Input logic levels differ slightly between parts. The 74LCX11M has narrower input thresholds (0.7V ~ 0.8V low, 1.7V ~ 2V high) compared to the 74LVC11D,112 (0.12V ~ 0.8V low, 1.08V ~ 2V high). Both are compatible with standard 3.3V logic signaling.

Q: What is the propagation delay difference?

A: The 74LCX11M exhibits 6ns propagation delay versus 6.2ns for the 74LVC11D,112 at 3.3V with 50pF load. This 0.2ns difference is negligible for most applications.