SN74LVC573APWE4 Equivalent & Substitute Parts

Part Overview

The SN74LVC573APWE4 is a D-Type Transparent Latch IC manufactured by Texas Instruments, featuring 1 channel with 8:8 circuit configuration and tri-state output capability in a 20-TSSOP surface mount 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 supply voltage range of 1.65V to 3.6V with a propagation delay of 2ns and supports output currents of 24mA for both high and low states.

Substiute Parts

SN74LVC573APWE4

Texas InstrumentsIn Stock: 1025SN74LVC573APWE4 Datasheet

Current PartRFQ

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

SN74LVC573APW

Texas InstrumentsIn Stock: 8686SN74LVC573APW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74LVC573APWE4 is determined by strict equivalence in the following critical parameters: logic type (D-Type Transparent Latch), circuit configuration (8:8), output type (tri-state), package type (20-TSSOP), and mounting method (surface mount). All substitute parts must maintain functional and electrical compatibility within the specified mechanical envelope.

The substitute parts are grouped into two categories:

MFR Recommended Substitutes maintain full parametric compatibility with identical or superior electrical specifications, ensuring direct replacement capability without design modification.

Parametric Equivalent parts share the same base product number and core functionality but may have different manufacturer origins or slightly different electrical characteristics within acceptable operating ranges.

Parameter Comparison

Engineering Selection Recommendations

74LVC573APW,118 (Nexperia USA Inc.) is the primary MFR recommended substitute. This part is active in production with extended operating temperature range (-40°C to 125°C) and lower supply voltage floor (1.2V minimum), providing enhanced flexibility for diverse application environments. Propagation delay is improved to 1.5ns. ROHS3 compliance and unlimited moisture sensitivity level ensure regulatory and environmental compatibility.

MC74LCX573DTG and MC74LCX573DTR2G (onsemi) are MFR recommended alternatives from the 74LCX series. Both parts are active with extended temperature range (-55°C to 125°C) and improved propagation delay (1.5ns). The primary distinction is packaging: MC74LCX573DTG is supplied in Tube format, while MC74LCX573DTR2G is supplied in Tape & Reel format. Minimum supply voltage is 2V. Both maintain full ROHS3 compliance.

SN74LVC573APW (Texas Instruments) is a parametric equivalent from the same manufacturer as the original part. This variant maintains identical electrical specifications (1.65V to 3.6V supply, 2ns propagation delay, -40°C to 85°C operating range) and is currently active in production. Packaging is Tube format. This option provides continuity with the original manufacturer while ensuring ongoing availability.

Frequently Asked Questions (FAQ)

Q: Can I use 74LVC573APW,118 as a direct replacement for SN74LVC573APWE4?

A: Yes. Both parts share identical logic type, circuit configuration, output type, and 20-TSSOP package. The 74LVC573APW,118 has superior specifications including lower minimum supply voltage (1.2V vs 1.65V), faster propagation delay (1.5ns vs 2ns), and extended operating temperature range (-40°C to 125°C vs -40°C to 85°C). No design modification is required.

Q: What is the difference between MC74LCX573DTG and MC74LCX573DTR2G?

A: Both parts are electrically identical with the same electrical specifications and performance characteristics. The difference is packaging format: MC74LCX573DTG is supplied in Tube packaging, while MC74LCX573DTR2G is supplied in Tape & Reel format. Selection depends on procurement and assembly requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance status, ensuring regulatory compatibility with environmental and hazardous substance restrictions.

Q: Does the SN74LVC573APW have the same performance as the original SN74LVC573APWE4?

A: Yes. The SN74LVC573APW is a parametric equivalent with identical electrical specifications including supply voltage range (1.65V to 3.6V), propagation delay (2ns), output current (24mA), and operating temperature range (-40°C to 85°C). The primary difference is packaging format (Tube vs the original's specific packaging variant).

Q: Which substitute should I select for new designs?

A: For new designs, 74LVC573APW,118 is recommended due to active production status, extended operating temperature range, and improved electrical performance. For designs requiring Texas Instruments sourcing, SN74LVC573APW provides equivalent performance with manufacturer continuity. For applications requiring extended temperature operation (-55°C to 125°C), select MC74LCX573DTG or MC74LCX573DTR2G based on packaging requirements.