CY74FCT377ATSOCTG4 Equivalent & Substitute Parts

Part Overview

The CY74FCT377ATSOCTG4 is a D-Type flip-flop logic integrated circuit manufactured by Texas Instruments, designed for 8-bit data storage and synchronization applications. This component 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

CY74FCT377ATSOCTG4

Texas InstrumentsIn Stock: 743CY74FCT377ATSOCTG4 Datasheet

Current PartRFQ

CY74FCT377ATSOC

Texas InstrumentsIn Stock: 2019CY74FCT377ATSOC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CY74FCT377ATSOCTG4 is determined by strict equivalence across the following critical parameters:

• Logic Function: D-Type flip-flop with 1 element and 8 bits per element
• Output Configuration: Non-inverted outputs
• Trigger Mechanism: Positive edge triggering
• Electrical Performance: 7.2ns maximum propagation delay at 5V with 50pF load
• Power Supply Range: 4.75V to 5.25V operation
• Output Drive Capability: 32mA high, 64mA low
• Package Format: 20-SOIC surface mount package (0.295", 7.50mm width)
• Compliance Standards: ROHS3 compliant, REACH unaffected

The substitute part CY74FCT377ATSOC maintains identical electrical and mechanical specifications while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The CY74FCT377ATSOC is a direct functional equivalent to the CY74FCT377ATSOCTG4. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The primary distinction is product status: the main part is obsolete while the substitute maintains active status, ensuring continued manufacturer support and supply chain availability.

Selection of the CY74FCT377ATSOC is appropriate for new designs and ongoing production requiring 8-bit D-Type flip-flop functionality with the specified electrical and mechanical characteristics. The difference in packaging format (tube versus tape and reel) reflects standard distribution practices and does not affect functional performance or pin compatibility.

Frequently Asked Questions (FAQ)

Q: Can CY74FCT377ATSOC be used as a direct replacement for CY74FCT377ATSOCTG4?

A: Yes. Both parts share identical electrical specifications, pin configurations, and package dimensions. The 20-SOIC surface mount package is mechanically and electrically compatible between the two part numbers.

Q: What is the significance of the product status difference?

A: The CY74FCT377ATSOCTG4 is classified as obsolete, indicating that Texas Instruments no longer manufactures or supports this specific part number. The CY74FCT377ATSOC maintains active status, ensuring ongoing availability and manufacturer technical support.

Q: Are there compliance or certification differences between these parts?

A: No. Both parts maintain identical ROHS3 compliance and REACH unaffected status. Moisture sensitivity level (MSL 1) is equivalent, indicating unlimited shelf life under standard storage conditions.

Q: Does the packaging format difference affect circuit performance?

A: No. The packaging format difference (tape and reel versus tube) is a distribution and handling consideration only. The actual component specifications, electrical performance, and pin compatibility remain identical.

Q: What are the critical parameters for confirming substitution compatibility?

A: Verify that your application requires: 8-bit D-Type flip-flop functionality, positive edge triggering, non-inverted outputs, 4.75V to 5.25V supply voltage operation, 20-SOIC package format, and the specified propagation delay and output drive characteristics. Confirmation of these parameters ensures functional equivalence.