SN74LVC573APWTG4 Equivalent & Substitute Parts

Part Overview

The SN74LVC573APWTG4 is a D-Type Transparent Latch logic IC manufactured by Texas Instruments, featuring an 8:8 circuit configuration with tri-state output in a 20-TSSOP surface mount package. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The device operates across a 1.65V to 3.6V supply voltage range with 2ns propagation delay and 24mA output drive capability.

Substiute Parts

SN74LVC573APWTG4

Texas InstrumentsIn Stock: 1029SN74LVC573APWTG4 Datasheet

Current PartRFQ

SN74LVC573APWR

Texas InstrumentsIn Stock: 4858SN74LVC573APWR Datasheet

Parametric EquivalentRFQ

SN74LVC573APWRG4

Texas InstrumentsIn Stock: 2436SN74LVC573APWRG4 Datasheet

Parametric EquivalentRFQ

SN74LVC573APWT

Texas InstrumentsIn Stock: 1579SN74LVC573APWT Datasheet

Parametric EquivalentRFQ

74LVC573APW,118

Nexperia USA Inc.In Stock: 766074LVC573APW,118 Datasheet

MFR RecommendedRFQ

MC74LCX573DTG

onsemiIn Stock: 2994MC74LCX573DTG Datasheet

MFR RecommendedRFQ

MC74LCX573DTR2G

onsemiIn Stock: 3438MC74LCX573DTR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74LVC573APWTG4 is determined by strict equivalence across the following critical parameters:

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 8:8
• Output Type: Tri-State
• Package / Case: 20-TSSOP
• Mounting Type: Surface Mount
• Independent Circuits: 1
• Current - Output High, Low: 24mA, 24mA
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts are grouped into two categories:

Parametric Equivalents (Texas Instruments 74LVC Series): Parts that maintain identical electrical specifications and packaging, differing only in packaging format (Cut Tape, Tape & Reel, or Tube).

Manufacturer Recommended Equivalents (Nexperia and onsemi): Parts from alternative manufacturers that meet or exceed the core functional requirements while maintaining package compatibility. These may include enhanced specifications such as lower propagation delay, extended temperature range, or expanded supply voltage range.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Texas Instruments 74LVC Series):

SN74LVC573APWR and SN74LVC573APWT are direct parametric equivalents to the SN74LVC573APWTG4, maintaining identical electrical specifications and operating ranges. Both parts are currently active in production. Selection between these two depends on packaging requirements: SN74LVC573APWR is supplied in Cut Tape and Digi-Reel format, while SN74LVC573APWT is supplied in Tape & Reel format. Both are ROHS3 compliant with MSL 1 rating.

For Enhanced Performance (Nexperia 74LVC573APW,118):

The Nexperia 74LVC573APW,118 offers improved propagation delay (1.5ns versus 2ns) and extended operating temperature range (-40°C to 125°C versus -40°C to 85°C). This part is suitable for applications requiring faster switching performance or operation in elevated temperature environments. Supply voltage range is expanded to 1.2V minimum, providing additional design flexibility.

For Extended Temperature Range (onsemi 74LCX Series):

MC74LCX573DTG and MC74LCX573DTR2G from onsemi provide the widest operating temperature range (-55°C to 125°C) and fastest propagation delay (1.5ns). These parts are recommended for industrial and military-grade applications requiring enhanced thermal performance. The 74LCX series maintains full functional compatibility with the 74LVC series while offering superior specifications. MC74LCX573DTG is supplied in Tube packaging, while MC74LCX573DTR2G is supplied in Tape & Reel format.

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can I use SN74LVC573APWR as a direct replacement for SN74LVC573APWTG4?

A: Yes. SN74LVC573APWR is a parametric equivalent with identical electrical specifications, operating voltage range (1.65V ~ 3.6V), propagation delay (2ns), and output drive capability (24mA). The only difference is packaging format. Both are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between the Texas Instruments 74LVC and onsemi 74LCX variants?

A: Both series are functionally equivalent D-Type Transparent Latches with 8:8 configuration and tri-state output in 20-TSSOP packaging. The 74LCX series offers enhanced specifications: faster propagation delay (1.5ns versus 2ns) and extended operating temperature range (-55°C to 125°C versus -40°C to 85°C). The 74LVC series has a minimum supply voltage of 1.65V, while 74LCX operates down to 2V.

Q: Is the Nexperia 74LVC573APW,118 compatible with my design?

A: The Nexperia part is functionally compatible with identical circuit configuration, output type, and package. It offers improved performance with 1.5ns propagation delay and extended temperature range to 125°C. Supply voltage range is expanded to 1.2V minimum. Verify that your design does not depend on the original 2ns propagation delay specification before substitution.

Q: What packaging formats are available for substitutes?

A: Substitute parts are available in three packaging formats: Cut Tape (CT) & Digi-Reel, Tape & Reel (TR), and Tube. Select based on your procurement and assembly requirements. All formats maintain identical electrical performance and compliance certifications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed—SN74LVC573APWR, SN74LVC573APWRG4, SN74LVC573APWT, 74LVC573APW,118, MC74LCX573DTG, and MC74LCX573DTR2G—are ROHS3 compliant with MSL 1 (Unlimited) rating.

Q: Which substitute should I choose for high-temperature applications?

A: For operating temperatures above 85°C, select either the Nexperia 74LVC573APW,118 (rated to 125°C) or onsemi MC74LCX573DTG/MC74LCX573DTR2G (rated to 125°C). The onsemi parts additionally support the extended lower temperature range to -55°C for full industrial temperature specifications.