CY74FCT377ATSOCT Equivalent & Substitute Parts

Part Overview

The CY74FCT377ATSOCT is a D-Type flip-flop logic integrated circuit manufactured by Texas Instruments, designed for 8-bit data storage and synchronization applications. This device features a single element with 8 bits per element, positive edge triggering, and non-inverted outputs. The part is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

CY74FCT377ATSOCT

Texas InstrumentsIn Stock: 1000CY74FCT377ATSOCT Datasheet

Current PartRFQ

CY74FCT377ATSOC

Texas InstrumentsIn Stock: 2019CY74FCT377ATSOC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CY74FCT377ATSOCT is determined by strict equivalence across the following critical parameters:

• Logic Function: D-Type flip-flop with 8-bit capacity, single element configuration
• Electrical Performance: Propagation delay of 7.2 ns @ 5V, 50pF; output drive capabilities of 32 mA (high) and 64 mA (low)
• Trigger Characteristics: Positive edge triggering with non-inverted outputs
• Power Supply: 4.75V ~ 5.25V operating range
• Package Compatibility: 20-SOIC surface mount package with identical physical dimensions (0.295", 7.50mm Width)
• Environmental Compliance: ROHS3 compliance and MSL Level 1 rating

The substitute part CY74FCT377ATSOC meets all these criteria while differing only in packaging format (Tube versus Tape & Reel) and product status (Active versus Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The CY74FCT377ATSOC is a direct functional equivalent to the CY74FCT377ATSOCT. Both parts are manufactured by Texas Instruments and share identical electrical specifications, timing characteristics, and package geometry. The primary distinction is product status: the original part is obsolete while the substitute remains in active production.

Selection of CY74FCT377ATSOC is supported by:

• Identical electrical performance across all specified parameters
• Active product status ensuring long-term availability and supply chain continuity
• Equivalent compliance certifications (ROHS3, MSL Level 1)
• Identical package footprint and mounting requirements for direct PCB compatibility
• Packaging format difference (Tube versus Tape & Reel) does not affect electrical or mechanical function

Frequently Asked Questions (FAQ)

Q: Can CY74FCT377ATSOC be used as a direct replacement for CY74FCT377ATSOCT?

A: Yes. Both parts are electrically and mechanically identical. The substitute part meets all functional requirements of the original part and maintains compatibility with existing circuit designs and PCB layouts.

Q: What is the difference between Tape & Reel and Tube packaging?

A: Tape & Reel and Tube are packaging and delivery formats only. They do not affect the electrical characteristics, performance, or functionality of the integrated circuit. The choice between formats depends on assembly process requirements and inventory management practices.

Q: Why is the original part listed as obsolete?

A: Product obsolescence is a manufacturer designation indicating that the part is no longer in active production. The substitute part CY74FCT377ATSOC remains in active production status, providing continued availability for new designs and replacement applications.

Q: Are there any differences in compliance or environmental ratings?

A: No. Both parts carry identical ROHS3 compliance status and Moisture Sensitivity Level 1 (Unlimited) ratings. Environmental and regulatory compliance is equivalent between the two parts.

Q: Will the substitute part work in existing applications without circuit modifications?

A: Yes. The substitute part is a direct functional equivalent with identical electrical specifications, timing parameters, and package geometry. No circuit modifications are required.