SN74S00DR NAND Gate IC Equivalent & Substitute Parts

Part Overview

The SN74S00DR is a 4-channel 2-input NAND gate logic IC manufactured by Texas Instruments in a 14-SOIC surface mount package. This component is classified as obsolete, making substitute parts necessary for new designs and production continuity. The SN74S00DR operates within a 4.75V to 5.25V supply voltage range and is suitable for digital logic applications requiring NAND gate functionality with specified propagation delay characteristics.

Substiute Parts

SN74S00DR

Texas InstrumentsIn Stock: 1175SN74S00DR Datasheet

Current PartRFQ

SN74LS00DR

Texas InstrumentsIn Stock: 3199SN74LS00DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The SN74LS00DR qualifies as a direct substitute for the SN74S00DR based on the following critical parameters:

• Identical logic type: 4-channel 2-input NAND gate
• Matching supply voltage range: 4.75V ~ 5.25V
• Identical input logic levels: Low 0.8V, High 2V
• Identical operating temperature range: 0°C ~ 70°C
• Identical package: 14-SOIC (0.154", 3.90mm Width)
• Identical mounting type: Surface Mount
• Matching RoHS3 compliance status

The SN74LS00DR represents an active product status alternative, addressing the obsolescence of the SN74S00DR while maintaining functional and electrical compatibility within the specified parameters.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS00DR is the appropriate substitute for the obsolete SN74S00DR. Both components maintain identical supply voltage specifications, input logic levels, operating temperature range, and physical packaging. The SN74LS00DR carries active product status from Texas Instruments, ensuring continued availability and supply chain reliability. Both parts meet ROHS3 compliance requirements, supporting modern manufacturing and environmental standards.

The SN74LS00DR exhibits lower output current specifications (400µA and 8mA versus 1mA and 20mA) and increased propagation delay (15ns versus 5ns), which must be evaluated against specific circuit timing and load-driving requirements. These differences do not affect functional compatibility for standard NAND gate logic applications within the specified electrical parameters.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS00DR directly replace the SN74S00DR in existing designs?

A: Yes, the SN74LS00DR is functionally compatible as a direct substitute. Both components share identical supply voltage ranges, input logic levels, operating temperature specifications, and 14-SOIC packaging. Circuit designs must account for the SN74LS00DR's lower output current drive capability and increased propagation delay when timing-critical or high-load applications are involved.

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

A: The primary differences are output current specifications and propagation delay. The SN74S00DR provides 1mA high and 20mA low output current with 5ns propagation delay, while the SN74LS00DR provides 400µA high and 8mA low output current with 15ns propagation delay. Both maintain identical logic functionality and electrical interface specifications.

Q: Are both parts available in the same package?

A: Yes, both the SN74S00DR and SN74LS00DR are supplied in the 14-SOIC (0.154", 3.90mm Width) surface mount package, ensuring mechanical and electrical compatibility on PCB layouts.

Q: What is the product status difference, and why does it matter?

A: The SN74S00DR is classified as obsolete, indicating discontinued production and limited availability. The SN74LS00DR maintains active product status, ensuring reliable supply chain access, ongoing manufacturer support, and compliance with current industry standards.

Q: Do both parts meet current compliance requirements?

A: Yes, both the SN74S00DR and SN74LS00DR are ROHS3 compliant, meeting modern environmental and manufacturing standards required for current production environments.