FST6800MTCX Equivalent & Substitute Parts

Part Overview

The FST6800MTCX is a bus switch IC with 10 x 1:1 circuit configuration manufactured by onsemi in 24-TSSOP packaging. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The FST6800MTCX operates with single supply voltage between 4V and 5.5V across an operating temperature range of -40°C to 85°C, serving applications requiring high-speed bus switching functionality.

Substiute Parts

FST6800MTCX

onsemiIn Stock: 2465FST6800MTCX Datasheet

Current PartRFQ

SN74CBT6800CPWR

Texas InstrumentsIn Stock: 2186SN74CBT6800CPWR Datasheet

DirectRFQ

SN74CBT6800CDGVR

Texas InstrumentsIn Stock: 888SN74CBT6800CDGVR Datasheet

SimilarRFQ

SN74CBT6800APWR

Texas InstrumentsIn Stock: 3150SN74CBT6800APWR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FST6800MTCX are qualified based on the following electrical and mechanical parameters:

• Circuit configuration: 10 x 1:1 bus switch topology
• Voltage supply range: 4V ~ 5.5V single supply
• Operating temperature range: -40°C ~ 85°C
• Mounting type: Surface Mount
• Package compatibility: 24-TSSOP or equivalent footprint
• Moisture sensitivity level: 1 (Unlimited)

The substitute parts are grouped into three categories based on their relationship to the main part:

Direct Manufacturer Equivalent: SN74CBT6800CPWR maintains identical electrical specifications and 24-TSSOP packaging with active product status.

Similar Manufacturer Part: SN74CBT6800CDGVR provides equivalent electrical performance with 24-TVSOP packaging, representing a package variant.

Parametric Equivalent: SN74CBT6800APWR matches all electrical and thermal specifications with 24-TSSOP packaging but carries Last Time Buy status.

Parameter Comparison

Engineering Selection Recommendations

SN74CBT6800CPWR is the primary substitute for new designs and procurement. This part maintains identical electrical specifications and 24-TSSOP packaging while offering active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment.

SN74CBT6800APWR provides an alternative with equivalent electrical and thermal performance in 24-TSSOP packaging. However, this part carries Last Time Buy status, limiting its suitability for long-term production requirements.

SN74CBT6800CDGVR is suitable for applications where 24-TVSOP packaging is acceptable. This part maintains all electrical specifications and offers active product status with ROHS3 compliance. Package footprint differences must be evaluated against PCB layout constraints.

Frequently Asked Questions (FAQ)

Q: Can SN74CBT6800CPWR directly replace FST6800MTCX without PCB modifications?

A: Yes. SN74CBT6800CPWR shares identical electrical specifications, operating temperature range, voltage supply requirements, and 24-TSSOP packaging footprint with FST6800MTCX, enabling direct substitution without PCB layout changes.

Q: What is the difference between SN74CBT6800CPWR and SN74CBT6800CDGVR?

A: Both parts maintain identical electrical performance and operating parameters. The primary difference is packaging: SN74CBT6800CPWR uses 24-TSSOP while SN74CBT6800CDGVR uses 24-TVSOP. Package selection depends on PCB design requirements and available footprint space.

Q: Why is SN74CBT6800APWR marked as Last Time Buy?

A: Last Time Buy status indicates this part is being discontinued by the manufacturer. While it meets all electrical and thermal specifications, procurement should prioritize SN74CBT6800CPWR for new designs to ensure sustained availability.

Q: Are all substitute parts ROHS3 compliant?

A: SN74CBT6800CPWR and SN74CBT6800CDGVR are ROHS3 compliant. SN74CBT6800APWR is also ROHS3 compliant. The original FST6800MTCX is REACH Unaffected.

Q: What moisture sensitivity level applies to these bus switch ICs?

A: All parts, including FST6800MTCX and its substitutes, carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.