74LVC573ADB,118 Equivalent & Substitute Parts

Part Overview

The 74LVC573ADB,118 is a D-Type Transparent Latch logic IC manufactured by Nexperia USA Inc., featuring an 8:8 channel configuration with tri-state output capability in a 20-SSOP surface mount package. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. The part operates across a supply voltage range of 1.2V to 3.6V with a propagation delay of 1.5ns and output current capability of 24mA for both high and low states.

Substiute Parts

74LVC573ADB,118

Nexperia USA Inc.In Stock: 120974LVC573ADB,118 Datasheet

Current PartRFQ

74LVC573APW,118

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

SimilarRFQ

SN74LVC573ADBR

Texas InstrumentsIn Stock: 2460SN74LVC573ADBR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74LVC573ADB,118 are identified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Core Electrical Parameters:

• Logic type: D-Type Transparent Latch
• Circuit configuration: 8:8
• Output type: Tri-State
• Supply voltage range compatibility
• Output current capability: 24mA minimum for both high and low states
• Propagation delay performance

Mechanical Parameters:

• Surface mount mounting type
• Package compatibility or functional equivalence

Substitute parts must maintain the same base product number (74LVC573) and series designation (74LVC) to ensure functional interchangeability within the specified electrical operating envelope.

Parameter Comparison

Engineering Selection Recommendations

74LVC573APW,118 (Nexperia USA Inc.)

This substitute maintains identical electrical specifications to the main part, including supply voltage range (1.2V ~ 3.6V), propagation delay (1.5ns), and output current (24mA). The primary difference is the package format: 20-TSSOP versus 20-SSOP. Both packages are surface mount with compatible pin counts and functionality. The part holds active product status with ROHS3 compliance and unlimited moisture sensitivity rating. This substitute is suitable for applications where package footprint differences are acceptable.

SN74LVC573ADBR (Texas Instruments)

This substitute maintains the same 20-SSOP package as the main part, ensuring mechanical compatibility. Electrical specifications are largely equivalent with 24mA output current and tri-state functionality. Notable differences include a narrower supply voltage range (1.65V ~ 3.6V versus 1.2V ~ 3.6V), slightly longer propagation delay (2ns versus 1.5ns), and reduced operating temperature range (-40°C ~ 85°C versus -40°C ~ 125°C). The part holds active product status with ROHS3 compliance. This substitute is appropriate for applications operating within the specified voltage and temperature constraints.

Frequently Asked Questions (FAQ)

Q: Can 74LVC573APW,118 replace 74LVC573ADB,118 directly?

A: Electrical substitution is valid. The 74LVC573APW,118 maintains identical supply voltage, propagation delay, and output current specifications. The package differs (20-TSSOP versus 20-SSOP), requiring PCB layout modification. Both are Nexperia products with active status.

Q: What are the key differences between the two substitute options?

A: The 74LVC573APW,118 offers identical electrical performance with a different package footprint. The SN74LVC573ADBR maintains the same package but operates within a narrower voltage range (1.65V minimum versus 1.2V) and reduced temperature range (-40°C to 85°C versus 125°C maximum). Propagation delay is 2ns versus 1.5ns.

Q: Is the SN74LVC573ADBR suitable for low-voltage applications below 1.65V?

A: No. The SN74LVC573ADBR minimum supply voltage is 1.65V. Applications requiring operation at 1.2V must use the 74LVC573APW,118 or original 74LVC573ADB,118.

Q: Are package differences between SSOP and TSSOP significant for PCB design?

A: Yes. SSOP (0.209" width, 5.30mm) and TSSOP (0.173" width, 4.40mm) have different footprints. PCB layout and component placement must be verified before substitution. Pin count and functionality remain identical.

Q: Do all three parts meet RoHS3 compliance?

A: Yes. The 74LVC573ADB,118, 74LVC573APW,118, and SN74LVC573ADBR are all ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Q: Which substitute is recommended for new designs?

A: Both active-status substitutes are suitable. Selection depends on application requirements: use 74LVC573APW,118 for full voltage range (1.2V ~ 3.6V) compatibility, or SN74LVC573ADBR if package footprint must match the original 20-SSOP format and voltage/temperature constraints are acceptable.