74LVTH574DB,118 Equivalent & Substitute Parts

Part Overview

The 74LVTH574DB,118 is a D-type flip-flop logic integrated circuit manufactured by Nexperia USA Inc., designed for 8-bit data storage and transfer applications. This component features positive edge triggering, tri-state non-inverted outputs, and operates across a 2.7V to 3.6V supply voltage range. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for design continuity and procurement planning. Active substitute options from Texas Instruments provide direct functional replacement while maintaining full electrical and mechanical compatibility.

Substiute Parts

74LVTH574DB,118

Nexperia USA Inc.In Stock: 78274LVTH574DB,118 Datasheet

Current PartRFQ

SN74LVTH574DB

Texas InstrumentsIn Stock: 1677SN74LVTH574DB Datasheet

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SN74LVTH574DBR

Texas InstrumentsIn Stock: 3285SN74LVTH574DBR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74LVTH574DB,118 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• D-Type flip-flop architecture with 1 element, 8-bit configuration
• Positive edge trigger mechanism
• Tri-state, non-inverted output configuration
• 150 MHz clock frequency capability
• 2.7V to 3.6V supply voltage range
• -40°C to 85°C operating temperature range
• 20-SSOP surface mount package (0.209", 5.30mm Width)
• ROHS3 compliance and MSL Level 1 rating

The substitute parts SN74LVTH574DB and SN74LVTH574DBR, both manufactured by Texas Instruments, meet all critical electrical and mechanical specifications. These parts maintain identical functional characteristics, package geometry, and environmental compliance ratings. The primary differences are product status (active vs. obsolete) and packaging format (tube vs. tape & reel), which do not affect electrical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

Both SN74LVTH574DB and SN74LVTH574DBR from Texas Instruments are direct functional equivalents to the obsolete 74LVTH574DB,118. Selection between these two substitute options depends on procurement and assembly requirements:

SN74LVTH574DB (Tube Packaging): Suitable for lower-volume applications, prototype development, and situations where individual component handling is required. This packaging format provides flexibility for manual assembly or small batch production runs.

SN74LVTH574DBR (Tape & Reel Packaging): Recommended for high-volume manufacturing and automated assembly processes. This format optimizes production efficiency and is standard for large-scale PCB assembly operations.

Both substitute parts maintain active product status with Texas Instruments, ensuring long-term availability and continued technical support. The Texas Instruments variants demonstrate improved propagation delay performance (4.5ns versus 5.9ns at 3.3V, 50pF) and lower input capacitance (3 pF versus 4 pF), providing enhanced electrical characteristics while maintaining full backward compatibility with the original Nexperia design.

Frequently Asked Questions (FAQ)

Q: Can SN74LVTH574DB and SN74LVTH574DBR be used interchangeably with 74LVTH574DB,118?

A: Yes. Both Texas Instruments parts are electrically and mechanically equivalent. The only difference is packaging format: SN74LVTH574DB uses tube packaging, while SN74LVTH574DBR uses tape & reel. Both are pin-compatible and functionally identical for circuit operation.

Q: What is the primary reason for substituting the Nexperia 74LVTH574DB,118?

A: The Nexperia part is classified as obsolete. Texas Instruments SN74LVTH574DB and SN74LVTH574DBR are active products with guaranteed long-term availability, making them the preferred choice for new designs and ongoing production.

Q: Are there any electrical performance differences between the original and substitute parts?

A: The Texas Instruments substitutes exhibit superior propagation delay (4.5ns versus 5.9ns) and lower input capacitance (3 pF versus 4 pF). These improvements enhance circuit performance while maintaining full compatibility with designs based on the original Nexperia specification.

Q: Do the substitute parts meet the same compliance and environmental standards?

A: Yes. Both SN74LVTH574DB and SN74LVTH574DBR are ROHS3 compliant, carry MSL Level 1 rating, and operate across the identical -40°C to 85°C temperature range. All environmental and regulatory requirements are maintained.

Q: Which packaging format should be selected for production?

A: For automated high-volume assembly, select SN74LVTH574DBR (tape & reel). For lower volumes, prototype work, or manual assembly, select SN74LVTH574DB (tube). Both are functionally identical; the choice depends on manufacturing process requirements.

Q: Is the 20-SSOP package geometry identical across all three parts?

A: Yes. All three parts use the 20-SSOP package with 0.209" width and 5.30mm body dimension. PCB footprints and assembly processes require no modification when substituting between these parts.