SN74LVC573AQPWREP Equivalent & Substitute Parts

Part Overview

The SN74LVC573AQPWREP is a D-Type Transparent Latch logic IC manufactured by Texas Instruments, featuring an 8:8 circuit configuration with tri-state output capability. This component operates across a 2V to 3.6V supply voltage range and is housed in a 20-TSSOP surface mount package. The part maintains active product status and is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching functional specifications, electrical parameters, and package compatibility to support design flexibility and supply chain continuity.

Substiute Parts

SN74LVC573AQPWREP

Texas InstrumentsIn Stock: 1253SN74LVC573AQPWREP Datasheet

Current PartRFQ

CLVC573AQPWRG4Q1

Texas InstrumentsIn Stock: 2665CLVC573AQPWRG4Q1 Datasheet

Parametric EquivalentRFQ

SN74LVC573AQPWRQ1

Texas InstrumentsIn Stock: 5918SN74LVC573AQPWRQ1 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

Substitute parts for the SN74LVC573AQPWREP are classified based on strict parameter matching across the following criteria:

Parametric Equivalents maintain identical electrical specifications including supply voltage range (2V ~ 3.6V), propagation delay (1ns), output current ratings (24mA), operating temperature range (-40°C ~ 125°C), and 20-TSSOP package configuration. These parts are functionally interchangeable at the circuit level.

Manufacturer Recommended Alternatives share the same logic function, circuit configuration (8:8), tri-state output, and package type but may exhibit variations in propagation delay (1.5ns), supply voltage range (1.2V ~ 3.6V or 2V ~ 3.6V), or operating temperature range (-55°C ~ 125°C). These parts are suitable for applications where the specified parameter variations do not conflict with system requirements.

Automotive Grade Variants include AEC-Q100 qualification and automotive-grade designation, providing enhanced reliability for automotive applications while maintaining core electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Direct Parametric Equivalents: CLVC573AQPWRG4Q1 and SN74LVC573AQPWRQ1 provide identical electrical performance to the SN74LVC573AQPWREP with automotive-grade qualification (AEC-Q100). These parts are suitable for applications requiring enhanced reliability or automotive compliance without performance compromise.

Extended Temperature Range Alternative: MC74LCX573DTR2G and MC74LCX573DTG from onsemi extend the operating temperature range to -55°C ~ 125°C while maintaining 2V ~ 3.6V supply compatibility. The 1.5ns propagation delay represents a minor increase from the 1ns specification. MC74LCX573DTR2G is packaged in Tape & Reel format; MC74LCX573DTG is supplied in Tube packaging.

Expanded Supply Voltage Range: 74LVC573APW,118 from Nexperia USA Inc. supports a lower minimum supply voltage of 1.2V while maintaining the upper 3.6V limit. This part exhibits 1.5ns propagation delay and is available in Cut Tape and Digi-Reel® packaging formats.

All substitute parts maintain RoHS3 compliance, MSL 1 rating, and identical 20-TSSOP package dimensions, ensuring mechanical and environmental compatibility with the original specification.

Frequently Asked Questions (FAQ)

Q: Can CLVC573AQPWRG4Q1 be used as a direct replacement for SN74LVC573AQPWREP?

A: Yes. CLVC573AQPWRG4Q1 maintains identical electrical specifications including 2V ~ 3.6V supply voltage, 1ns propagation delay, 24mA output current, and -40°C ~ 125°C operating temperature. The automotive-grade qualification provides additional reliability certification without altering functional performance.

Q: What is the difference between the onsemi MC74LCX573 variants?

A: MC74LCX573DTR2G and MC74LCX573DTG are functionally identical but differ in packaging format. MC74LCX573DTR2G is supplied in Tape & Reel (TR) format for automated assembly; MC74LCX573DTG is supplied in Tube format for manual handling. Both feature -55°C ~ 125°C operating temperature range and 1.5ns propagation delay.

Q: Is the 1.5ns propagation delay of the Nexperia and onsemi parts acceptable as a substitute?

A: Propagation delay substitution depends on system timing requirements. The 0.5ns increase from 1ns to 1.5ns must be evaluated against circuit timing margins. If the original design accommodates this delay variation, substitution is permissible.

Q: Can 74LVC573APW,118 operate at lower voltages than the original part?

A: Yes. 74LVC573APW,118 supports supply voltage down to 1.2V compared to the 2V minimum of SN74LVC573AQPWREP. This extended lower voltage range enables use in low-power applications while maintaining the 3.6V upper limit.

Q: Are all substitute parts available in the same packaging format?

A: No. SN74LVC573AQPWREP, CLVC573AQPWRG4Q1, SN74LVC573AQPWRQ1, and MC74LCX573DTR2G are supplied in Tape & Reel format. 74LVC573APW,118 is available in Cut Tape and Digi-Reel® formats. MC74LCX573DTG is supplied in Tube format. Packaging selection should align with assembly process requirements.

Q: Do all parts meet the same compliance standards?

A: All substitute parts are RoHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating. CLVC573AQPWRG4Q1 and SN74LVC573AQPWRQ1 carry AEC-Q100 automotive qualification. Standard-grade parts (SN74LVC573AQPWREP, 74LVC573APW,118, MC74LCX573DTG, MC74LCX573DTR2G) do not include automotive qualification.