CY74FCT2374CTSOCT Equivalent & Substitute Parts

Part Overview

The CY74FCT2374CTSOCT is a D-Type flip-flop logic integrated circuit manufactured by Texas Instruments, featuring 1 element with 8-bit capacity and tri-state, non-inverted output configuration. This component operates at a maximum clock frequency of 250 MHz with a propagation delay of 5.2 ns at 5V and 50 pF load. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

CY74FCT2374CTSOCT

Texas InstrumentsIn Stock: 933CY74FCT2374CTSOCT Datasheet

Current PartRFQ

CY74FCT2574ATSOCT

Texas InstrumentsIn Stock: 851CY74FCT2574ATSOCT Datasheet

Parametric EquivalentRFQ

74FCT374CTSOG

IDT, Integrated Device Technology IncIn Stock: 189774FCT374CTSOG Datasheet

MFR RecommendedRFQ

CD74FCT374M

Texas InstrumentsIn Stock: 1439CD74FCT374M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CY74FCT2374CTSOCT is determined by the following critical parameters: D-Type flip-flop configuration, 1 element with 8-bit capacity, tri-state non-inverted output, positive edge trigger, 20-SOIC package, and operating temperature range of -40°C to 85°C. The voltage supply range, propagation delay, and output current specifications define the performance envelope within which substitutes must operate.

The substitute parts are grouped into two categories:

Parametric Equivalent: CY74FCT2574ATSOCT shares identical package, pin configuration, and functional characteristics but exhibits different propagation delay (10 ns versus 5.2 ns) and quiescent current specifications.

Manufacturer Recommended Substitutes: 74FCT374CTSOG (IDT) and CD74FCT374M (Texas Instruments) are active production alternatives that maintain core functional compatibility while offering improved or comparable electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring maximum performance retention: The 74FCT374CTSOG (IDT) is the primary recommendation. It maintains the 5.2 ns propagation delay specification of the original part, operates across an extended voltage supply range (4.5V to 5.5V), and holds active product status with full availability. This part is suitable for designs where the original CY74FCT2374CTSOCT performance envelope must be preserved.

For cost-optimized designs with relaxed timing requirements: The CD74FCT374M (Texas Instruments) provides an active alternative with ROHS3 compliance and significantly reduced quiescent current (8 µA). The 6.6 ns propagation delay remains within acceptable margins for most applications. Note that the operating temperature range is limited to 0°C to 70°C, which may restrict use in extended temperature environments.

For direct parametric equivalence: The CY74FCT2574ATSOCT maintains identical electrical specifications to the original part but is discontinued at distribution channels. This part is suitable only if existing inventory is available and procurement constraints are not critical.

All substitute parts maintain identical 20-SOIC package configuration, pin compatibility, and functional D-Type flip-flop operation with 8-bit capacity and tri-state non-inverted output.

Frequently Asked Questions (FAQ)

Q: Can the CY74FCT2574ATSOCT be used as a direct replacement for the CY74FCT2374CTSOCT?

A: The CY74FCT2574ATSOCT is a parametric equivalent with identical package and functional configuration. However, it exhibits 10 ns propagation delay compared to 5.2 ns in the original part. Substitution is valid only if the application timing budget accommodates the increased delay. The part is discontinued at distribution channels.

Q: What is the primary difference between the 74FCT374CTSOG and CD74FCT374M?

A: Both are active production alternatives. The 74FCT374CTSOG (IDT) matches the original 5.2 ns propagation delay and operates across 4.5V to 5.5V. The CD74FCT374M (Texas Instruments) has 6.6 ns propagation delay and operates within 4.75V to 5.25V, with a restricted temperature range of 0°C to 70°C versus the original -40°C to 85°C specification.

Q: Are all substitute parts available in the same 20-SOIC package?

A: Yes. All substitute parts listed are packaged in 20-SOIC (0.295", 7.50mm Width) configuration, ensuring mechanical and electrical pin compatibility with the original CY74FCT2374CTSOCT.

Q: Which substitute part is recommended for new designs?

A: The 74FCT374CTSOG is recommended for new designs. It maintains active product status, preserves the original performance specifications, and offers extended voltage supply range compatibility.

Q: Does the operating temperature range affect substitution decisions?

A: Yes. The CD74FCT374M operates only within 0°C to 70°C, which is narrower than the original -40°C to 85°C range. Applications requiring extended temperature operation must use either the 74FCT374CTSOG or CY74FCT2574ATSOCT.

Q: Are all substitute parts RoHS3 compliant?

A: The 74FCT374CTSOG compliance status is not specified in available documentation. The CY74FCT2574ATSOCT and CD74FCT374M are confirmed ROHS3 compliant. Verify RoHS compliance requirements with your specific application standards before final selection.