SN74HCS00DYYR Equivalent & Substitute Parts

Part Overview

The SN74HCS00DYYR is a NAND Gate IC manufactured by Texas Instruments, featuring 4 channels with 2 inputs per channel and Schmitt Trigger input capability. This logic component operates across a 2V to 6V supply voltage range and is housed in a 14-SOT-23-THIN surface mount package. The device is classified as Active product status and is widely used in digital logic applications requiring low-power NAND gate functionality with noise immunity characteristics.

Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and functional specifications are maintained across the same or compatible package formats. Identifying qualified alternatives ensures design flexibility, supply chain continuity, and access to components with extended qualifications such as automotive-grade certifications.

Substiute Parts

SN74HCS00DYYR

Texas InstrumentsIn Stock: 3848SN74HCS00DYYR Datasheet

Current PartRFQ

SN74HCS00QDYYRQ1

Texas InstrumentsIn Stock: 3710SN74HCS00QDYYRQ1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74HCS00DYYR are identified based on strict electrical and mechanical parameter equivalence. The substitution criteria are defined by the following key parameters:

Electrical Equivalence Parameters:

• Logic Type: NAND Gate
• Number of Circuits: 4 channels
• Number of Inputs: 2 inputs per channel
• Features: Schmitt Trigger Input
• Voltage - Supply: 2V ~ 6V
• Current - Quiescent (Max): 2 µA
• Current - Output High, Low: 7.8 mA
• Input Logic Level - Low: 1V ~ 3V
• Input Logic Level - High: 1.5V ~ 4.2V
• Max Propagation Delay @ 6V, 50pF: 12 ns
• Operating Temperature: -40°C ~ 125°C

Mechanical Compatibility Parameters:

• Mounting Type: Surface Mount
• Package / Case: SOT-23-14 Thin, SOT-23 Variant
• Supplier Device Package: 14-SOT-23-THIN

Series and Manufacturer:

• Series: 74HCS
• Manufacturer: Texas Instruments

Parts meeting all electrical and mechanical parameters are classified as parametric equivalents. Additional qualifications such as automotive-grade certifications (AEC-Q100) represent enhanced versions of the base part and do not disqualify substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

SN74HCS00DYYR (Standard Grade)

The SN74HCS00DYYR is the base commercial-grade NAND gate IC suitable for general-purpose digital logic applications. It maintains Active product status and is available in high inventory quantities. This part is appropriate for applications where automotive qualification is not required and standard commercial operating conditions are sufficient.

SN74HCS00QDYYRQ1 (Automotive Grade)

The SN74HCS00QDYYRQ1 is an automotive-qualified variant of the SN74HCS00DYYR, carrying AEC-Q100 certification. This part is electrically and mechanically identical to the standard grade version but is qualified for automotive applications requiring enhanced reliability and traceability standards. Selection of this part is driven by application requirements for automotive-grade components rather than by differences in electrical performance or package compatibility.

Both parts are manufactured by Texas Instruments, share the 74HCS series designation, and are classified as Active products. The choice between them is determined by application-specific compliance requirements rather than functional or mechanical differences.

Frequently Asked Questions (FAQ)

Q: Can the SN74HCS00QDYYRQ1 be used as a direct replacement for the SN74HCS00DYYR?

A: Yes. The SN74HCS00QDYYRQ1 is a parametric equivalent with identical electrical specifications, logic configuration, and package format. All electrical parameters, including supply voltage range, propagation delay, input/output logic levels, and quiescent current, are equivalent. The SOT-23-14 Thin package dimensions and pin assignments are identical, enabling direct substitution at the board level.

Q: What is the difference between these two parts?

A: The primary difference is qualification level. The SN74HCS00QDYYRQ1 carries AEC-Q100 automotive qualification, while the SN74HCS00DYYR is standard commercial grade. Both parts are manufactured by Texas Instruments using the same 74HCS series design. Electrical performance, operating temperature range, and package specifications are identical.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both the SN74HCS00DYYR and SN74HCS00QDYYRQ1 operate across the -40°C to 125°C temperature range. Operating temperature specifications are identical between the two parts.

Q: What does the SOT-23-14 Thin package designation mean?

A: SOT-23-14 Thin refers to a Small Outline Transistor package with 14 pins in a thin profile variant. Both parts use this identical package format, designated as 14-SOT-23-THIN by the supplier. This ensures mechanical and electrical compatibility for PCB assembly and circuit integration.

Q: Can these parts be used interchangeably in high-reliability applications?

A: Interchangeability depends on application requirements. For applications requiring automotive-grade qualification and AEC-Q100 compliance, the SN74HCS00QDYYRQ1 is the appropriate selection. For applications without automotive qualification requirements, either part is suitable. The choice is determined by compliance and qualification mandates rather than functional differences.

Q: What is the Schmitt Trigger Input feature?

A: Schmitt Trigger Input is a noise immunity feature that provides hysteresis in the input switching threshold. This feature is present in both parts and allows the NAND gate to tolerate slower input signal transitions and noise without false triggering. The input logic level specifications (Low: 1V ~ 3V, High: 1.5V ~ 4.2V) define the hysteresis window.

Q: Are both parts available in the same packaging format?

A: Yes. Both the SN74HCS00DYYR and SN74HCS00QDYYRQ1 are supplied in Tape & Reel (TR) format with the 14-SOT-23-THIN package. This ensures compatibility with automated assembly equipment and identical handling requirements.

Q: What is the significance of the "Q1" designation in the SN74HCS00QDYYRQ1 part number?

A: The "Q1" suffix indicates automotive qualification and AEC-Q100 compliance. This designation distinguishes the automotive-grade variant from the standard commercial version and signals that the part meets automotive industry reliability and traceability standards.