CY74FCT373CTSOCTE4 Equivalent & Substitute Parts

Part Overview

The CY74FCT373CTSOCTE4 is a D-Type Transparent Latch logic IC manufactured by Texas Instruments, featuring an 8:8 circuit configuration with tri-state output capability in a 20-SOIC surface mount package. This component is classified as obsolete, making identification of equivalent and substitute parts essential for design continuity and procurement planning. The part operates within a 4.75V to 5.25V supply voltage range with a 2ns propagation delay and supports operating temperatures from -40°C to 85°C.

Substiute Parts

CY74FCT373CTSOCTE4

Texas InstrumentsIn Stock: 866CY74FCT373CTSOCTE4 Datasheet

Current PartRFQ

CY74FCT373ATSOCT

Texas InstrumentsIn Stock: 742CY74FCT373ATSOCT Datasheet

Parametric EquivalentRFQ

CY74FCT573ATSOCT

Texas InstrumentsIn Stock: 2295CY74FCT573ATSOCT Datasheet

Parametric EquivalentRFQ

CY74FCT573TSOCT

Texas InstrumentsIn Stock: 1174CY74FCT573TSOCT Datasheet

Parametric EquivalentRFQ

74FCT373ATSOG

IDT, Integrated Device Technology IncIn Stock: 471374FCT373ATSOG Datasheet

MFR RecommendedRFQ

CY74FCT373ATSOC

Texas InstrumentsIn Stock: 2976CY74FCT373ATSOC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CY74FCT373CTSOCTE4 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Parameters (Must Match):

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 8:8
• Output Type: Tri-State
• Voltage - Supply: 4.75V ~ 5.25V
• Delay Time - Propagation: 2ns
• Operating Temperature: -40°C ~ 85°C

Mechanical Parameters (Must Match):

• Package / Case: 20-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories: Parametric Equivalents (identical electrical and mechanical specifications) and Manufacturer Recommended alternatives (functionally equivalent with minor output current variations or different base product numbers within the same series).

Parameter Comparison

Engineering Selection Recommendations

Preferred Substitutes (Active Product Status):

CY74FCT573ATSOCT and CY74FCT373ATSOC are the primary recommended substitutes. Both maintain full electrical and mechanical compatibility with the original CY74FCT373CTSOCTE4, including identical output current specifications (32mA, 64mA) and ROHS3 compliance. CY74FCT573ATSOCT carries Active product status with higher inventory availability (2200 pcs), ensuring long-term supply continuity. CY74FCT373ATSOC is available in Tube packaging with Active status and substantial inventory (2952 pcs).

Alternative Substitute (Different Manufacturer):

74FCT373ATSOG, manufactured by IDT (Integrated Device Technology Inc), provides functional equivalence with identical electrical parameters except for reduced output current specifications (15mA, 48mA versus 32mA, 64mA). This part is Active with high inventory availability (4702 pcs) and maintains the 20-SOIC package format. Selection of this alternative requires confirmation that the reduced output current meets circuit requirements.

Discontinued Alternatives:

CY74FCT373ATSOCT and CY74FCT573TSOCT are classified as Discontinued at DiGi Electronics and should be considered only when active alternatives are unavailable. Both maintain full parameter compatibility with the original part.

Frequently Asked Questions (FAQ)

Q: Can CY74FCT573ATSOCT be used as a direct replacement for CY74FCT373CTSOCTE4?

A: Yes. CY74FCT573ATSOCT is a parametric equivalent with identical electrical specifications (8:8 D-Type Transparent Latch, tri-state output, 4.75V–5.25V supply, 2ns propagation delay, 32mA/64mA output current) and mechanical compatibility (20-SOIC package, surface mount). The primary difference is product status (Active versus Obsolete) and packaging format (Tape & Reel versus bulk).

Q: What is the difference between CY74FCT373ATSOC and CY74FCT373ATSOCT?

A: Both parts are parametric equivalents with identical electrical specifications. The primary differences are packaging format (Tube versus Tape & Reel) and product status (Active versus Discontinued at DiGi Electronics). Selection depends on procurement requirements and packaging compatibility with assembly processes.

Q: Can 74FCT373ATSOG from IDT replace the Texas Instruments CY74FCT373CTSOCTE4?

A: 74FCT373ATSOG provides functional equivalence with one critical difference: output current specifications are reduced (15mA, 48mA versus 32mA, 64mA). This part is suitable only if circuit design accommodates the lower output current. All other electrical and mechanical parameters are identical.

Q: Why is the original CY74FCT373CTSOCTE4 marked as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Multiple active and recently discontinued alternatives are available with identical or equivalent specifications, ensuring design continuity without functional compromise.

Q: Are all substitute parts ROHS3 compliant?

A: Texas Instruments substitutes (CY74FCT373ATSOCT, CY74FCT573ATSOCT, CY74FCT573TSOCT, CY74FCT373ATSOC) are confirmed ROHS3 compliant. The IDT alternative (74FCT373ATSOG) does not specify RoHS status in the provided data. Compliance verification with the IDT manufacturer is recommended if RoHS certification is a design requirement.

Q: What packaging options are available for substitutes?

A: Substitute parts are available in three packaging formats: Tape & Reel (CY74FCT573ATSOCT), Tube (CY74FCT373ATSOC), and Bulk (74FCT373ATSOG). Selection depends on assembly process requirements and procurement volume specifications.