74LVTH574DB,112 Equivalent & Substitute Parts

Part Overview

The 74LVTH574DB,112 is a D-type flip-flop logic integrated circuit manufactured by NXP USA Inc., designed for 8-bit positive edge-triggered applications. This component features tri-state, non-inverted outputs and operates across a 2.7V to 3.6V supply voltage range with a maximum clock frequency of 150 MHz. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

74LVTH574DB,112

NXP USA Inc.In Stock: 90374LVTH574DB,112 Datasheet

Current PartRFQ

74LVT574MTCX

onsemiIn Stock: 214174LVT574MTCX Datasheet

MFR RecommendedRFQ

74LVTH574MTCX

onsemiIn Stock: 421274LVTH574MTCX Datasheet

MFR RecommendedRFQ

SN74LVTH574DB

Texas InstrumentsIn Stock: 1677SN74LVTH574DB Datasheet

MFR RecommendedRFQ

SN74LVTH574DBR

Texas InstrumentsIn Stock: 3285SN74LVTH574DBR Datasheet

MFR RecommendedRFQ

SN74LVTH574IPWREP

Texas InstrumentsIn Stock: 691SN74LVTH574IPWREP Datasheet

MFR RecommendedRFQ

SN74LVTH574PW

Texas InstrumentsIn Stock: 956SN74LVTH574PW Datasheet

MFR RecommendedRFQ

SN74LVTH574PWR

Texas InstrumentsIn Stock: 5447SN74LVTH574PWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74LVTH574DB,112 is determined by strict equivalence across the following critical parameters:

Functional Requirements:

• D-Type flip-flop architecture with 1 element and 8 bits per element
• Tri-state, non-inverted output configuration
• Positive edge trigger mechanism
• 150 MHz clock frequency capability

Electrical Requirements:

• 2.7V to 3.6V supply voltage range
• 32mA output high current and 64mA output low current
• 190 µA quiescent current
• Operating temperature range of -40°C to 85°C

Physical & Compliance Requirements:

• Surface mount technology
• ROHS3 compliance
• MSL 1 (Unlimited) moisture sensitivity level

Substitute parts are grouped into two package categories: 20-SSOP (0.209", 5.30mm Width) and 20-TSSOP (0.173", 4.40mm Width). Both package types maintain electrical equivalence while offering different physical footprints for PCB layout optimization.

Parameter Comparison

Engineering Selection Recommendations

For 20-SSOP Package Compatibility:

SN74LVTH574DB and SN74LVTH574DBR from Texas Instruments are direct package-compatible substitutes with active product status. Both maintain identical electrical specifications and ROHS3 compliance. SN74LVTH574DBR offers tape and reel packaging for high-volume production, while SN74LVTH574DB is available in tube packaging for lower-volume applications.

For 20-TSSOP Package Compatibility:

SN74LVTH574PWR, SN74LVTH574PW, and SN74LVTH574IPWREP from Texas Instruments provide equivalent functionality in a smaller 20-TSSOP footprint. All three maintain active product status and full ROHS3 compliance. SN74LVTH574PWR offers the highest inventory availability in tape and reel format.

For onsemi Alternatives:

74LVTH574MTCX and 74LVT574MTCX from onsemi provide functional equivalence with last-time-buy product status. Both are available in 20-TSSOP packaging and maintain ROHS3 compliance. The 74LVTH574MTCX maintains the 74LVTH series designation, while 74LVT574MTCX operates under the 74LVT series with marginally improved propagation delay characteristics.

Recommended Priority:

Texas Instruments SN74LVTH574 series parts are preferred due to active product status, ensuring long-term availability and continued manufacturing support. For new designs requiring the original 20-SSOP footprint, SN74LVTH574DBR is the optimal selection. For designs accommodating the smaller 20-TSSOP package, SN74LVTH574PWR provides superior inventory availability and active lifecycle status.

Frequently Asked Questions (FAQ)

Q: Can I use a 20-TSSOP package substitute in place of the original 20-SSOP package?

A: No. While 20-TSSOP and 20-SSOP packages are electrically equivalent, they have different physical dimensions and PCB footprints. 20-TSSOP (0.173", 4.40mm width) is narrower than 20-SSOP (0.209", 5.30mm width). PCB layout and land pattern modifications are required for package substitution.

Q: What is the difference between 74LVTH574MTCX and 74LVT574MTCX?

A: Both parts are functionally equivalent with identical electrical specifications. The primary difference is the series designation: 74LVTH574MTCX maintains the 74LVTH series, while 74LVT574MTCX operates under the 74LVT series. Both are manufactured by onsemi and are available in 20-TSSOP packaging with last-time-buy product status.

Q: Why is the original 74LVTH574DB,112 marked as obsolete?

A: The NXP USA Inc. 74LVTH574DB,112 has reached end-of-life status. Active alternatives from Texas Instruments and onsemi provide equivalent functionality with ongoing manufacturing support and availability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity level, matching the original part's environmental and regulatory certifications.

Q: Which substitute offers the best propagation delay performance?

A: Texas Instruments SN74LVTH574 series parts (SN74LVTH574DB, SN74LVTH574DBR, SN74LVTH574IPWREP, SN74LVTH574PW, SN74LVTH574PWR) deliver 4.5ns maximum propagation delay at 3.3V with 50pF load. The onsemi 74LVTH574MTCX achieves 4.6ns under identical conditions. The onsemi 74LVT574MTCX also achieves 4.6ns propagation delay.

Q: What packaging options are available for high-volume production?

A: For 20-SSOP footprint, SN74LVTH574DBR is supplied in tape and reel format. For 20-TSSOP footprint, SN74LVTH574PWR and 74LVTH574MTCX are available in tape and reel or cut tape with digi-reel packaging, suitable for automated assembly processes.