SN74LVTH574PWE4 Equivalent & Substitute Parts

Part Overview

The SN74LVTH574PWE4 is a D-type flip-flop logic integrated circuit manufactured by Texas Instruments, featuring 1 element with 8-bit positive edge triggering in a 20-TSSOP surface mount package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design support and production requirements. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts offer functional compatibility within defined parameter tolerances.

Substiute Parts

SN74LVTH574PWE4

Texas InstrumentsIn Stock: 1239SN74LVTH574PWE4 Datasheet

Current PartRFQ

74LVTH574MTCX

onsemiIn Stock: 421274LVTH574MTCX Datasheet

DirectRFQ

SN74LVTH574PW

Texas InstrumentsIn Stock: 956SN74LVTH574PW Datasheet

MFR RecommendedRFQ

74LVT574MTCX

onsemiIn Stock: 214174LVT574MTCX Datasheet

MFR RecommendedRFQ

SN74LVTH374PW

Texas InstrumentsIn Stock: 2072SN74LVTH374PW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74LVTH574PWE4 are classified based on strict adherence to the following critical parameters:

Electrical Compatibility Parameters:

• Type: D-Type Flip Flop
• Number of Elements: 1
• Number of Bits per Element: 8
• Output Type: Tri-State, Non-Inverted
• Trigger Type: Positive Edge
• Clock Frequency: 150 MHz minimum
• Voltage Supply Range: 2.7V ~ 3.6V
• Operating Temperature: -40°C ~ 85°C (TA)

Mechanical Compatibility Parameters:

• Package / Case: 20-TSSOP (0.173", 4.40mm Width)
• Mounting Type: Surface Mount

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories:

Direct Manufacturer Substitutes: Parts from alternative manufacturers (onsemi) that maintain identical electrical and mechanical specifications within the allowed parameter tolerances.

Manufacturer Recommended Substitutes: Parts from the original manufacturer (Texas Instruments) or alternative manufacturers with active or last-time-buy product status that provide functional equivalence.

Parametric Equivalents: Parts with identical electrical performance characteristics but different base product numbers, suitable for applications where the specific logic function variant is interchangeable.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SN74LVTH574PW

The SN74LVTH574PW is the manufacturer-recommended substitute from Texas Instruments with Active product status. This part maintains identical electrical specifications to the main part (4.5 ns propagation delay, 3 pF input capacitance) and is available in Tube packaging. Active product status ensures continued availability and support from the original manufacturer.

Secondary Recommendation: 74LVTH574MTCX

The 74LVTH574MTCX from onsemi provides direct manufacturer substitution with Last Time Buy status. This part maintains the 74LVTH574 base product number and identical electrical specifications within acceptable tolerances (4.6 ns propagation delay, 4 pF input capacitance). Available in Cut Tape (CT) & Digi-Reel® packaging.

Alternative Recommendation: 74LVT574MTCX

The 74LVT574MTCX from onsemi offers functional equivalence with the 74LVT574 base product number and Last Time Buy status. Electrical specifications remain within acceptable tolerances (4.6 ns propagation delay, 4 pF input capacitance). This part is suitable for applications where the LVT logic family variant is acceptable.

Parametric Equivalent: SN74LVTH374PW

The SN74LVTH374PW from Texas Instruments is a parametric equivalent with the 74LVTH374 base product number and Active product status. This part maintains identical electrical performance (4.5 ns propagation delay, 3 pF input capacitance) and is suitable for applications where the specific logic function variant is interchangeable with the original design.

All substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited), and identical mechanical compatibility with the 20-TSSOP package.

Frequently Asked Questions (FAQ)

Q: Can I use SN74LVTH574PW as a direct replacement for SN74LVTH574PWE4?

A: Yes. The SN74LVTH574PW is the manufacturer-recommended substitute from Texas Instruments. Both parts share identical electrical specifications (4.5 ns propagation delay, 3 pF input capacitance, 150 MHz clock frequency) and mechanical compatibility (20-TSSOP package, surface mount). The primary difference is packaging format (Tube vs. the original PWE4 variant).

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

A: Both parts are from onsemi and maintain the same electrical performance within acceptable tolerances. The primary difference is the logic family designation: 74LVTH574 represents the LVTH (Low Voltage TTL-compatible High-speed) family, while 74LVT574 represents the LVT (Low Voltage TTL-compatible) family. Both are functionally compatible for this application.

Q: Are all substitute parts in the same package?

A: Yes. All substitute parts listed use the 20-TSSOP (0.173", 4.40mm Width) surface mount package, ensuring mechanical compatibility with the original design. Packaging format (Tube, Cut Tape, or Digi-Reel®) differs but does not affect electrical or mechanical fit.

Q: What does "Last Time Buy" product status mean?

A: Last Time Buy indicates that the manufacturer has announced end-of-life for the part. Existing inventory may be available, but no new production is planned. Parts with this status should be considered for near-term use only. For long-term production requirements, Active status parts (SN74LVTH574PW or SN74LVTH374PW) are recommended.

Q: Can I use SN74LVTH374PW instead of SN74LVTH574PWE4?

A: Yes, for applications where the specific logic function variant is interchangeable. The SN74LVTH374PW maintains identical electrical performance and mechanical compatibility. The base product number difference (374 vs. 574) indicates a different logic function variant, but both are D-type flip-flops with 1 element, 8-bit configuration, and identical electrical characteristics.

Q: Are all substitute parts ROHS3 compliant?

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

Q: What is the maximum propagation delay difference between substitute parts?

A: The maximum propagation delay difference is 0.1 ns. The main part and Texas Instruments substitutes specify 4.5 ns @ 3.3V, 50pF, while onsemi parts specify 4.6 ns @ 3.3V, 50pF. This difference is within acceptable engineering tolerances for logic circuit applications.