CY74FCT373CTSOC Equivalent & Substitute Parts

Part Overview

The CY74FCT373CTSOC 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-SOIC surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The device operates within a 4.75V to 5.25V supply voltage range with a 2ns propagation delay and supports operating temperatures from -40°C to 85°C.

Substiute Parts

CY74FCT373CTSOC

Texas InstrumentsIn Stock: 807CY74FCT373CTSOC Datasheet

Current PartRFQ

CY74FCT373ATSOC

Texas InstrumentsIn Stock: 2976CY74FCT373ATSOC Datasheet

DirectRFQ

74FCT373ATSOG

IDT, Integrated Device Technology IncIn Stock: 471374FCT373ATSOG Datasheet

MFR RecommendedRFQ

CY74FCT373TSOC

Texas InstrumentsIn Stock: 2264CY74FCT373TSOC Datasheet

Parametric EquivalentRFQ

CY74FCT573ATSOC

Texas InstrumentsIn Stock: 2198CY74FCT573ATSOC Datasheet

Parametric EquivalentRFQ

CY74FCT573CTSOC

Texas InstrumentsIn Stock: 3291CY74FCT573CTSOC Datasheet

Parametric EquivalentRFQ

CY74FCT573TSOC

Texas InstrumentsIn Stock: 1101CY74FCT573TSOC Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CY74FCT373CTSOC is determined by strict parameter matching across the following critical criteria:

Primary Substitution Parameters:

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 8:8
• Output Type: Tri-State
• Supply Voltage Range: 4.75V ~ 5.25V
• Propagation Delay: 2ns
• Operating Temperature Range: -40°C ~ 85°C
• Package / Case: 20-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount

Substitution Categories:

Direct Manufacturer Substitutes maintain identical electrical and mechanical specifications with the same base product number (74FCT373) and are sourced from the same manufacturer (Texas Instruments). These parts differ only in product status (active vs. obsolete) and packaging format.

Manufacturer-Recommended Substitutes are sourced from alternative manufacturers (IDT, Integrated Device Technology Inc) and maintain all critical electrical parameters. Minor variations in output current specifications (15mA/48mA vs. 32mA/64mA) remain within functional compatibility for standard logic applications.

Parametric Equivalents include both 74FCT373 and 74FCT573 base product numbers. The 74FCT573 variants maintain identical electrical performance and package specifications but represent a different product line within the 74FCT series. All parametric equivalents are active products with current manufacturing status.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: CY74FCT373ATSOC is the preferred substitute. This part maintains identical electrical specifications and package configuration as the CY74FCT373CTSOC while offering active product status and significantly higher inventory availability (2952 units). Both parts are manufactured by Texas Instruments and comply with ROHS3 and REACH standards.

Secondary Selection: CY74FCT373TSOC provides an alternative from Texas Instruments with identical electrical and mechanical specifications. Product status is active with adequate inventory (2250 units).

Alternative Manufacturer Option: 74FCT373ATSOG from IDT maintains all critical electrical parameters and package specifications. This option provides the highest inventory availability (4702 units) and active product status. Output current specifications differ (15mA/48mA vs. 32mA/64mA) but remain functionally compatible for standard logic circuit applications.

74FCT573 Series Alternatives: CY74FCT573ATSOC, CY74FCT573CTSOC, and CY74FCT573TSOC are parametric equivalents representing a different product line within the 74FCT series. All maintain identical electrical performance and package specifications with active product status. Selection among these variants should be based on packaging preference (tube vs. bulk) and inventory requirements.

Frequently Asked Questions (FAQ)

Q: Can CY74FCT373ATSOC directly replace CY74FCT373CTSOC in existing designs?

A: Yes. Both parts maintain identical electrical specifications, package configuration, and supply voltage requirements. The primary difference is product status (active vs. obsolete) and packaging format. No circuit modifications are required.

Q: What is the significance of the output current difference in 74FCT373ATSOG (15mA/48mA vs. 32mA/64mA)?

A: The 74FCT373ATSOG from IDT specifies lower output current ratings. For standard logic applications operating within typical load conditions, this specification remains functionally compatible. Applications requiring maximum output current delivery should verify load requirements against the specified 15mA/48mA ratings.

Q: Are 74FCT373 and 74FCT573 variants interchangeable?

A: The 74FCT373 and 74FCT573 base product numbers represent different product lines within the 74FCT series. While they maintain identical electrical specifications and package configurations, they are distinct products. Substitution should be verified against specific circuit requirements and design documentation.

Q: What packaging options are available for substitute parts?

A: Substitute parts are available in tube and bulk packaging formats. CY74FCT373ATSOC, CY74FCT373TSOC, CY74FCT573ATSOC, CY74FCT573CTSOC, and CY74FCT573TSOC are supplied in tube packaging. 74FCT373ATSOG is supplied in bulk packaging. Packaging selection should align with procurement and assembly requirements.

Q: Are all substitute parts RoHS and REACH compliant?

A: All Texas Instruments variants (CY74FCT373ATSOC, CY74FCT373TSOC, CY74FCT573ATSOC, CY74FCT573CTSOC, CY74FCT573TSOC) are ROHS3 compliant and REACH unaffected. Compliance information for 74FCT373ATSOG from IDT should be verified with the manufacturer.

Q: Which substitute offers the best inventory availability?

A: 74FCT373ATSOG from IDT provides the highest inventory availability at 4702 units. Among Texas Instruments variants, CY74FCT573CTSOC offers the highest availability at 3198 units.