SN74LS00N-NG Equivalent & Substitute Parts

Part Overview

The SN74LS00N-NG is a NAND Gate IC featuring 4 channels with 2 inputs per channel, packaged in a 14-pin DIP configuration. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part operates within a supply voltage range of 4.75V to 5.25V and is designed for through-hole mounting applications. Identifying compatible alternatives ensures design continuity and component availability for applications requiring NAND gate functionality.

Substiute Parts

SN74LS00N-NG

Texas InstrumentsIn Stock: 1114SN74LS00N-NG Datasheet

Current PartRFQ

SN74AC00PWR

Texas InstrumentsIn Stock: 30509SN74AC00PWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS00N-NG is determined by the following critical parameters:

Functional Equivalence: The substitute part must provide identical logic functionality—4-channel NAND gate with 2 inputs per channel.

Logic Family Compatibility: The SN74LS00N-NG operates in the 74LS logic family. The SN74AC00PWR operates in the 74AC logic family, which provides enhanced performance characteristics while maintaining functional compatibility with NAND gate logic operations.

Supply Voltage Range: The main part operates at 4.75V ~ 5.25V. The substitute SN74AC00PWR operates at 2V ~ 6V, which encompasses the original operating range and extends compatibility to broader voltage applications.

Electrical Performance: Both parts deliver 4 NAND gate circuits with 2 inputs each. The substitute provides improved propagation delay (8ns versus 15ns) and reduced quiescent current (2µA versus 4.4mA).

Compliance Standards: Both parts maintain ROHS3 compliance, ensuring environmental and regulatory alignment.

Parameter Comparison

Engineering Selection Recommendations

The SN74AC00PWR serves as the active substitute for the obsolete SN74LS00N-NG based on the following engineering criteria:

Product Status Alignment: The SN74AC00PWR maintains active product status with current manufacturing and inventory availability (30,400 pieces in stock), whereas the SN74LS00N-NG is obsolete. This transition ensures long-term component supply security.

Functional Compatibility: Both parts deliver identical NAND gate logic functionality with 4 circuits and 2 inputs per circuit, ensuring direct functional replacement in circuit designs.

Regulatory Compliance: Both components maintain ROHS3 compliance, satisfying environmental and regulatory requirements without additional qualification.

Voltage Operating Range: The SN74AC00PWR supply voltage range (2V ~ 6V) fully encompasses the original part's operating range (4.75V ~ 5.25V), confirming electrical compatibility in standard 5V applications.

Package Consideration: The substitute transitions from through-hole (14-DIP) to surface-mount (14-TSSOP) packaging. This change requires PCB redesign and assembly process modification but is necessary for active component availability.

Frequently Asked Questions (FAQ)

Q: Can the SN74AC00PWR directly replace the SN74LS00N-NG without circuit modification?

A: Functional replacement is possible due to identical NAND gate logic configuration. However, the package transition from 14-DIP (through-hole) to 14-TSSOP (surface-mount) requires PCB layout and assembly process changes. Electrical parameters are compatible within the 5V operating range.

Q: What are the key differences between the 74LS and 74AC logic families?

A: The 74AC family provides lower quiescent current (2µA versus 4.4mA), faster propagation delay (8ns versus 15ns), and extended operating temperature range (-40°C to 85°C versus 0°C to 70°C). The 74AC family also supports a broader supply voltage range (2V to 6V).

Q: Is the SN74AC00PWR suitable for applications requiring through-hole mounting?

A: No. The SN74AC00PWR is a surface-mount component in 14-TSSOP packaging. Applications requiring through-hole mounting must either redesign for surface-mount assembly or identify alternative through-hole NAND gate options.

Q: Are both parts RoHS compliant?

A: Yes. Both the SN74LS00N-NG and SN74AC00PWR maintain ROHS3 compliance, satisfying environmental and regulatory requirements.

Q: What is the inventory status of these parts?

A: The SN74LS00N-NG (obsolete) has 1,021 pieces available. The SN74AC00PWR (active) has 30,400 pieces in stock, providing significantly greater availability for new production.

Q: Can the SN74AC00PWR operate at voltages below 4.75V?

A: Yes. The SN74AC00PWR operates across 2V to 6V, enabling functionality at voltages below the original part's minimum specification. However, circuit design must account for logic level thresholds at lower voltages.