74LVC573AD,112 D-Type Transparent Latch Equivalent & Substitute Parts

Part Overview

The 74LVC573AD,112 is a D-Type Transparent Latch logic IC manufactured by Nexperia USA Inc., featuring an 8:8 channel configuration with tri-state output in a 20-SOIC package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The part operates across a 1.2V to 3.6V supply voltage range with a 1.5ns propagation delay and is fully RoHS3 compliant with unlimited moisture sensitivity rating.

Substiute Parts

74LVC573AD,112

Nexperia USA Inc.In Stock: 76774LVC573AD,112 Datasheet

Current PartRFQ

CLVC573AQDWRG4Q1

Texas InstrumentsIn Stock: 3043CLVC573AQDWRG4Q1 Datasheet

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MC74LCX573DWG

onsemiIn Stock: 1679MC74LCX573DWG Datasheet

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MC74LCX573DWR2G

onsemiIn Stock: 2381MC74LCX573DWR2G Datasheet

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SN74LVC573ADW

Texas InstrumentsIn Stock: 3313SN74LVC573ADW Datasheet

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SN74LVC573ADWR

Texas InstrumentsIn Stock: 2417SN74LVC573ADWR Datasheet

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SN74LVC573AQDWRQ1

Texas InstrumentsIn Stock: 1300SN74LVC573AQDWRQ1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74LVC573AD,112 is determined by strict alignment across the following critical parameters:

Mandatory Matching Criteria:

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 8:8
• Output Type: Tri-State
• Package Type: 20-SOIC (0.295", 7.50mm Width)
• RoHS3 Compliance

Allowable Parameter Variations:

• Voltage Supply Range: Substitute must support the full 1.2V ~ 3.6V range or a subset that includes the operating range of the original design
• Propagation Delay: Substitute specifications may differ; faster delays are acceptable
• Operating Temperature: Substitute range may be broader or narrower depending on application requirements
• Moisture Sensitivity Level: Substitute MSL rating of 1 or 3 is acceptable for general applications
• Packaging Format: Tube, Tape & Reel, or Cut Tape formats are interchangeable for the same package type

All substitute parts listed maintain functional equivalence within the 74LVC logic family or compatible 74LCX series.

Parameter Comparison

Engineering Selection Recommendations

For Standard Commercial Applications: SN74LVC573ADW and SN74LVC573ADWR are direct active substitutes from Texas Instruments within the 74LVC series. Both maintain MSL rating 1 and RoHS3 compliance. The primary trade-off is a 2ns propagation delay versus the original 1.5ns, and a reduced upper operating temperature of 85°C versus 125°C. These parts are suitable for applications where the extended temperature range is not required.

For Extended Temperature Range Applications: CLVC573AQDWRG4Q1 and SN74LVC573AQDWRQ1 both support the full -40°C to 125°C operating range and feature automotive-grade qualification (AEC-Q100). CLVC573AQDWRG4Q1 offers superior propagation delay at 1ns. Both are available in Tape & Reel packaging and maintain MSL rating 1.

For Broader Temperature Extremes: MC74LCX573DWG and MC74LCX573DWR2G from onsemi extend the lower operating temperature to -55°C. These parts operate within the 74LCX series and carry MSL rating 3. They maintain 1.5ns propagation delay matching the original specification.

Packaging Considerations: All substitute parts are available in 20-SOIC package format. Tube packaging is available from Nexperia, Texas Instruments, and onsemi. Tape & Reel and Cut Tape formats are available from Texas Instruments and onsemi for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can I use SN74LVC573ADW as a direct replacement for 74LVC573AD,112? A: Yes, with design verification. Both are D-Type Transparent Latch 8:8 tri-state ICs in 20-SOIC packages with RoHS3 compliance and MSL rating 1. The SN74LVC573ADW has a 2ns propagation delay versus 1.5ns and operates to 85°C maximum versus 125°C. Confirm your application does not require the extended temperature range or faster switching speed.

Q: What is the difference between 74LVC and 74LCX series substitutes? A: Both are logic latch families with identical functional configurations. The 74LVC series (Texas Instruments, Nexperia) and 74LCX series (onsemi) differ in voltage supply ranges and temperature specifications. 74LCX parts from onsemi extend to -55°C minimum and carry MSL rating 3 versus MSL rating 1 for 74LVC parts.

Q: Are automotive-qualified parts necessary for my application? A: Automotive qualification (AEC-Q100) is required only for automotive or mission-critical applications. CLVC573AQDWRG4Q1 and SN74LVC573AQDWRQ1 carry this qualification. Standard commercial applications do not require this certification.

Q: Does packaging format affect electrical performance? A: No. Tube, Tape & Reel, and Cut Tape formats contain identical die and electrical specifications. Packaging format selection depends on assembly process requirements and volume handling.

Q: What is MSL rating and why does it vary? A: Moisture Sensitivity Level (MSL) indicates the maximum time a component can be exposed to ambient conditions before soldering. MSL 1 allows unlimited exposure; MSL 3 allows 168 hours. Both ratings are acceptable for standard manufacturing processes. MSL 1 provides greater handling flexibility.

Q: Can I substitute parts with different voltage supply ranges? A: Only if your circuit operates within the overlapping voltage range. The original 74LVC573AD,112 operates 1.2V ~ 3.6V. SN74LVC573ADW operates 1.65V ~ 3.6V, which is compatible for circuits operating above 1.65V. CLVC573AQDWRG4Q1 operates 2V ~ 3.6V, compatible for circuits operating above 2V.