74FCT373CTSOG Equivalent & Substitute Parts

Part Overview

The 74FCT373CTSOG is a D-Type Transparent Latch logic IC manufactured by Renesas Electronics Corporation, featuring an 8:8 circuit configuration with tri-state output capability in a 20-SOIC surface mount package. This component is classified as Last Time Buy, indicating limited availability from the original manufacturer. Identifying equivalent and substitute parts is essential for design continuity, procurement flexibility, and long-term supply chain management.

Substiute Parts

74FCT373CTSOG

Renesas Electronics CorporationIn Stock: 102174FCT373CTSOG Datasheet

Current PartRFQ

74FCT373ATSOG

IDT, Integrated Device Technology IncIn Stock: 471374FCT373ATSOG Datasheet

Parametric EquivalentRFQ

CY74FCT373ATSOC

Texas InstrumentsIn Stock: 2976CY74FCT373ATSOC Datasheet

MFR RecommendedRFQ

CY74FCT373ATSOCT

Texas InstrumentsIn Stock: 742CY74FCT373ATSOCT Datasheet

MFR RecommendedRFQ

CY74FCT373TSOC

Texas InstrumentsIn Stock: 2264CY74FCT373TSOC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74FCT373CTSOG are qualified based on the following critical parameters:

• Logic Type & Circuit Configuration: All substitutes must be D-Type Transparent Latch devices with 8:8 circuit configuration
• Output Type: Tri-state output capability is mandatory
• Package & Mounting: 20-SOIC surface mount package with identical physical dimensions (0.295", 7.50mm Width)
• Electrical Specifications: Supply voltage range (4.75V ~ 5.25V), propagation delay (2ns), and operating temperature range (-40°C ~ 85°C) must be maintained
• Series Compatibility: All parts belong to the 74FCT logic series

The substitute parts are categorized as follows:

Parametric Equivalent: 74FCT373ATSOG (IDT) — Identical electrical and mechanical specifications with active product status.

Manufacturer Recommended Substitutes: CY74FCT373ATSOC, CY74FCT373ATSOCT, and CY74FCT373TSOC (Texas Instruments) — Meet all core functional requirements with enhanced output current specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 74FCT373ATSOG (IDT) is the optimal choice for direct replacement. It maintains identical electrical and mechanical specifications while offering active product status and higher inventory availability (4702 pcs). This part provides the most seamless transition with no design modifications required.

Secondary Substitutes: CY74FCT373ATSOC and CY74FCT373TSOC (Texas Instruments) are suitable alternatives with active product status. These parts feature enhanced output current specifications (32mA / 64mA versus 15mA / 48mA), providing improved drive capability. Both are ROHS3 compliant and carry MSL 1 rating. CY74FCT373ATSOC is available in tube packaging with 2952 pcs in stock, while CY74FCT373TSOC is also tube-packaged with 2250 pcs available.

Avoid: CY74FCT373ATSOCT is marked as discontinued at DiGi Electronics and should not be selected for new designs or long-term supply requirements, despite meeting all electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can I use 74FCT373ATSOG as a direct replacement for 74FCT373CTSOG?

A: Yes. The 74FCT373ATSOG is a parametric equivalent with identical logic type, circuit configuration, output type, supply voltage, propagation delay, operating temperature range, and package specifications. No circuit modifications are required.

Q: What is the difference between the Renesas 74FCT373CTSOG and Texas Instruments CY74FCT373ATSOC?

A: Both parts are functionally equivalent D-Type Transparent Latch devices in 20-SOIC packages. The primary difference is output current capability: the TI part provides 32mA / 64mA compared to the Renesas 15mA / 48mA. This enhanced current drive in the TI variant allows for higher fan-out applications. Both maintain identical propagation delay (2ns) and operating temperature range (-40°C ~ 85°C).

Q: Are all substitute parts ROHS3 compliant?

A: The Renesas 74FCT373CTSOG, Texas Instruments CY74FCT373ATSOC, CY74FCT373ATSOCT, and CY74FCT373TSOC are all ROHS3 compliant. The IDT 74FCT373ATSOG does not specify RoHS status in the provided data.

Q: What is the moisture sensitivity level for these parts?

A: The Renesas 74FCT373CTSOG and all Texas Instruments substitutes carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. The IDT part does not specify MSL in the provided data.

Q: Can I use CY74FCT373ATSOCT for new designs?

A: CY74FCT373ATSOCT is marked as discontinued at DiGi Electronics and should not be selected for new designs. Use CY74FCT373ATSOC or CY74FCT373TSOC instead, both of which are active products with confirmed availability.

Q: Does the enhanced output current of the Texas Instruments parts affect circuit compatibility?

A: The higher output current (32mA / 64mA) in Texas Instruments parts is backward compatible with designs specified for 15mA / 48mA. The enhanced drive capability provides additional margin and improved performance in high-fan-out applications without requiring design changes.

Q: Are the packaging options different between substitutes?

A: All parts use the 20-SOIC surface mount package with identical physical dimensions (0.295", 7.50mm Width). Packaging format differs: Renesas offers tube packaging, IDT offers bulk, and Texas Instruments offers tube packaging for active variants.