SN74LS30NS NAND Gate IC Equivalent & Substitute Parts

Part Overview

The SN74LS30NS is a NAND Gate IC manufactured by Texas Instruments, featuring 1 channel with 8 inputs in a 14-SO surface mount package. This component is classified as Last Time Buy, indicating discontinued production with limited inventory availability. The SN74LS30NS operates within the 74LS logic series and is designed for standard TTL logic applications requiring 8-input NAND gate functionality.

Due to Last Time Buy status, identifying equivalent substitute parts with active production status ensures long-term supply chain continuity and design flexibility for new projects or production runs.

Substiute Parts

SN74LS30NS

Texas InstrumentsIn Stock: 2192SN74LS30NS Datasheet

Current PartRFQ

SN74LS30NSR

Texas InstrumentsIn Stock: 5326SN74LS30NSR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS30NS is determined by strict equivalence across the following critical parameters:

Functional Equivalence: Logic type (NAND Gate), number of circuits (1), and number of inputs (8) must remain identical. These parameters define the core logic function and pin configuration.

Electrical Compatibility: Supply voltage range (4.75V ~ 5.25V) and operating temperature range (0°C ~ 70°C) must be maintained or exceeded to ensure circuit operation within specified conditions.

Physical Compatibility: Package type (14-SOIC) and mounting type (Surface Mount) must match to ensure PCB layout compatibility and assembly process alignment.

Compliance Requirements: RoHS3 compliance and MSL rating (1 - Unlimited) must be maintained or improved to meet regulatory and manufacturing standards.

The SN74LS30NSR qualifies as a direct substitute based on these criteria, with the primary distinction being packaging format (Tape & Reel versus individual packaging) and active production status.

Parameter Comparison

Engineering Selection Recommendations

SN74LS30NSR is the qualified substitute for SN74LS30NS based on the following engineering criteria:

Functional Equivalence: Both parts maintain identical logic configuration (1-channel 8-input NAND gate) with matching electrical specifications for supply voltage, input logic levels, and output current ratings.

Supply Chain Status: The SN74LS30NSR carries Active product status, ensuring continued availability and manufacturing support, whereas the SN74LS30NS is Last Time Buy with limited inventory (2100 Pcs). For new designs or production continuity, SN74LS30NSR is the appropriate selection.

Compliance Alignment: Both parts meet ROHS3 compliance requirements and carry MSL rating 1 (Unlimited), satisfying regulatory and manufacturing standards without additional qualification.

Packaging Consideration: The SN74LS30NSR is supplied in Tape & Reel format, standard for high-volume production environments. The main part SN74LS30NS is available in standard packaging. Selection depends on procurement volume and assembly process requirements.

Electrical Performance: The SN74LS30NSR exhibits lower quiescent current (800 µA versus 1.1 mA), representing improved power efficiency while maintaining all other electrical parameters within specification.

Frequently Asked Questions (FAQ)

Q: Can SN74LS30NSR directly replace SN74LS30NS in existing designs?

A: Yes. Both parts are functionally equivalent with identical pin configurations, logic operation, supply voltage requirements (4.75V ~ 5.25V), and operating temperature range (0°C ~ 70°C). No circuit modifications are required.

Q: What is the difference between SN74LS30NS and SN74LS30NSR?

A: The primary differences are packaging format and product status. SN74LS30NSR is supplied in Tape & Reel format and carries Active product status, while SN74LS30NS is Last Time Buy. The SN74LS30NSR also exhibits lower quiescent current (800 µA versus 1.1 mA).

Q: Why should I use SN74LS30NSR instead of SN74LS30NS?

A: The SN74LS30NSR is recommended for new designs and ongoing production due to Active product status and assured long-term availability. The SN74LS30NS is Last Time Buy with limited inventory.

Q: Are there any electrical performance differences between these parts?

A: Both parts meet identical electrical specifications for logic operation. The SN74LS30NSR operates at lower quiescent current (800 µA) compared to the main part (1.1 mA), providing improved power efficiency.

Q: What packaging formats are available?

A: SN74LS30NS is available in standard packaging. SN74LS30NSR is supplied in Tape & Reel (TR) format, suitable for automated assembly processes and high-volume production.

Q: Do both parts meet RoHS compliance?

A: Yes. Both SN74LS30NS and SN74LS30NSR are ROHS3 compliant with MSL rating 1 (Unlimited), meeting regulatory requirements for lead-free manufacturing.

Q: What is the pin count and package type?

A: Both parts use 14-pin SOIC package (14-SOIC, 0.209" width, 5.30mm) in surface mount configuration, ensuring identical PCB footprint compatibility.