FST3384MTC Bus Switch 5 x 1:1 Equivalent & Substitute Parts

Part Overview

The FST3384MTC is a bus switch logic IC manufactured by onsemi, featuring a 5 x 1:1 circuit configuration in a 24-TSSOP package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The FST3384MTC operates with single supply voltage between 4V and 5.5V and supports operating temperatures from -40°C to 85°C. Substitute parts maintain functional equivalence through matching circuit topology, voltage specifications, and thermal operating range.

Substiute Parts

FST3384MTC

onsemiIn Stock: 1739FST3384MTC Datasheet

Current PartRFQ

SN74CBT3384APW

Texas InstrumentsIn Stock: 2324SN74CBT3384APW Datasheet

DirectRFQ

SN74CBT3384APWR

Texas InstrumentsIn Stock: 2317SN74CBT3384APWR Datasheet

DirectRFQ

CBT3384PW,118

NXP SemiconductorsIn Stock: 10003CBT3384PW,118 Datasheet

SimilarRFQ

PI5C3384QE

Diodes IncorporatedIn Stock: 18258PI5C3384QE Datasheet

SimilarRFQ

SN74CBT3384ADBR

Texas InstrumentsIn Stock: 4838SN74CBT3384ADBR Datasheet

SimilarRFQ

SN74CBT3384ADGVR

Texas InstrumentsIn Stock: 4317SN74CBT3384ADGVR Datasheet

SimilarRFQ

SN74CBT3384CDBQR

Texas InstrumentsIn Stock: 3360SN74CBT3384CDBQR Datasheet

SimilarRFQ

SN74CBT3384CDGVR

Texas InstrumentsIn Stock: 3188SN74CBT3384CDGVR Datasheet

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SN74CBT3384CPW

Texas InstrumentsIn Stock: 2284SN74CBT3384CPW Datasheet

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SN74CBT3384CPWR

Texas InstrumentsIn Stock: 6210SN74CBT3384CPWR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts are grouped based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

• Circuit configuration (5 x 1:1 topology with 2 independent circuits)
• Voltage supply range (minimum 4V, maximum 5.5V)
• Operating temperature range (-40°C to 85°C)
• Surface mount technology
• Package type compatibility

Direct substitutes maintain identical package specifications (24-TSSOP). Similar substitutes may use alternative package types (24-SSOP, 24-QSOP, 24-TVSOP) while preserving electrical functionality. All substitute parts are from established semiconductor manufacturers (Texas Instruments, NXP Semiconductors, Diodes Incorporated) with active or last-time-buy product status.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using FST3384MTC, the following selection criteria apply based on product status and compliance requirements:

Preferred Direct Substitutes (Identical 24-TSSOP Package):

• SN74CBT3384CPWR (Texas Instruments, Active status, ROHS3 compliant, Tape & Reel packaging)
• SN74CBT3384CPW (Texas Instruments, Active status, ROHS3 compliant, Tube packaging)
• CBT3384PW,118 (NXP Semiconductors, Active status, Bulk packaging)

These parts maintain identical package footprint and electrical specifications within the 4.5V to 5.5V supply range. Texas Instruments parts offer active product status with ROHS3 compliance certification.

Alternative Package Options (Functionally Equivalent):

• SN74CBT3384CDBQR (24-SSOP, Active status, ROHS3 compliant, MSL 2)
• SN74CBT3384CDGVR (24-TVSOP, Active status, ROHS3 compliant)
• PI5C3384QE (24-QSOP, Last Time Buy, ROHS3 compliant, narrower voltage range 4.75V-5.25V)

Alternative packages require PCB layout modification but provide functional equivalence. The PI5C3384QE operates within a narrower voltage specification (4.75V to 5.25V) and should be selected only when supply voltage is confirmed within this range.

Frequently Asked Questions (FAQ)

Q: Can SN74CBT3384CPWR directly replace FST3384MTC without PCB modification?

A: Yes. SN74CBT3384CPWR maintains identical 24-TSSOP package dimensions (0.173", 4.40mm width), pin count, and electrical specifications. No PCB layout changes are required. The part operates within the same voltage range (4.5V-5.5V is compatible with FST3384MTC's 4V-5.5V specification) and temperature range (-40°C to 85°C).

Q: What is the difference between SN74CBT3384CPWR and SN74CBT3384CPW?

A: Both parts are electrically identical with the same 24-TSSOP package. The primary difference is packaging format: CPWR indicates Tape & Reel (TR) packaging for automated assembly, while CPW indicates Tube packaging for manual handling. Select based on your assembly process requirements.

Q: Why does PI5C3384QE have a different voltage range (4.75V-5.25V)?

A: PI5C3384QE from Diodes Incorporated operates within a narrower voltage specification compared to the FST3384MTC (4V-5.5V) and Texas Instruments alternatives (4.5V-5.5V). This part is suitable only for applications where supply voltage is confirmed to remain between 4.75V and 5.25V throughout operation.

Q: What is the significance of MSL (Moisture Sensitivity Level)?

A: MSL indicates moisture sensitivity for surface mount components. FST3384MTC and most substitutes have MSL 1 (Unlimited), meaning they can be stored indefinitely without moisture control. SN74CBT3384CDBQR has MSL 2 (1 Year), requiring moisture control during storage and a 1-year shelf life limit from the date of manufacture.

Q: Are all substitute parts ROHS3 compliant?

A: Texas Instruments and Diodes Incorporated parts are explicitly ROHS3 compliant. NXP Semiconductors CBT3384PW,118 does not specify RoHS status in the provided data. Verify RoHS compliance requirements with your procurement specifications before selection.

Q: Can I use SN74CBT3384ADBR or SN74CBT3384ADGVR as substitutes?

A: Yes, these parts are functionally equivalent but use different package types (24-SSOP and 24-TVSOP respectively). They require PCB layout modification due to different package dimensions. Both are Last Time Buy status from Texas Instruments with ROHS3 compliance.