CY74FCT574TSOCT Equivalent & Substitute Parts

Part Overview

The CY74FCT574TSOCT is a D-Type flip-flop logic integrated circuit manufactured by Texas Instruments, designed for 8-bit data storage and transfer applications. This device features positive edge triggering, tri-state non-inverted outputs, and operates within the 4.75V to 5.25V supply voltage range. The part is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

CY74FCT574TSOCT

Texas InstrumentsIn Stock: 812CY74FCT574TSOCT Datasheet

Current PartRFQ

CY74FCT574TSOC

Texas InstrumentsIn Stock: 2626CY74FCT574TSOC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CY74FCT574TSOCT is determined by strict equivalence across the following critical parameters:

• Logic Function: D-Type flip-flop with 8-bit configuration, 1 element
• Output Characteristics: Tri-state, non-inverted outputs
• Trigger Mechanism: Positive edge triggering
• Electrical Performance: 10ns maximum propagation delay at 5V with 50pF load
• Output Drive Capability: 32mA high, 64mA low
• Supply Voltage Range: 4.75V to 5.25V
• Thermal Operating Range: -40°C to 85°C
• Package Specification: 20-SOIC surface mount form factor
• Compliance Standards: ROHS3 compliance and MSL Level 1

The substitute part CY74FCT574TSOC maintains identical electrical specifications, functional behavior, and package geometry, differing only in product status (active versus obsolete) and packaging format (tube versus standard).

Parameter Comparison

Engineering Selection Recommendations

The CY74FCT574TSOC is the direct functional equivalent of the CY74FCT574TSOCT. Both parts are manufactured by Texas Instruments, share identical electrical specifications, and are housed in the same 20-SOIC package. The primary distinction is product lifecycle status: the CY74FCT574TSOCT is obsolete, while the CY74FCT574TSOC maintains active production status.

For new designs or ongoing procurement, the CY74FCT574TSOC is the appropriate selection. Both parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with modern manufacturing processes and environmental standards. The substitute part is available in higher inventory quantities (2615 units versus 774 units), supporting sustained supply chain requirements.

Frequently Asked Questions (FAQ)

Q: Can CY74FCT574TSOC directly replace CY74FCT574TSOCT in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The CY74FCT574TSOC operates within the same voltage range (4.75V to 5.25V), delivers identical propagation delay (10ns), provides equivalent output drive capability (32mA high, 64mA low), and is packaged in the same 20-SOIC form factor. No circuit modifications are required.

Q: What is the difference between CY74FCT574TSOCT and CY74FCT574TSOC?

A: The parts differ in product status and packaging format. The CY74FCT574TSOCT is classified as obsolete, while the CY74FCT574TSOC is active production. The CY74FCT574TSOC is supplied in tube packaging, whereas the CY74FCT574TSOCT uses standard packaging. All functional and electrical parameters remain identical.

Q: Are both parts suitable for -40°C to 85°C operating environments?

A: Yes. Both the CY74FCT574TSOCT and CY74FCT574TSOC are rated for -40°C to 85°C operating temperature range, making them suitable for industrial and commercial applications within this thermal envelope.

Q: Do both parts meet current compliance requirements?

A: Yes. Both parts are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating, meeting current environmental and manufacturing standards.

Q: Is the 20-SOIC package identical for both parts?

A: Yes. Both parts use the 20-SOIC (0.295", 7.50mm Width) surface mount package. PCB footprints and assembly processes are identical.