FSTU6800WMX Bus Switch 10 x 1:1 Equivalent & Substitute Parts

Part Overview

The FSTU6800WMX is a bus switch IC manufactured by onsemi, designed for 10 x 1:1 switching applications in logic circuits. This component operates as a single-supply device with a voltage range of 4V to 5.5V and is housed in a 24-SOP package. The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

FSTU6800WMX

onsemiIn Stock: 1176FSTU6800WMX Datasheet

Current PartRFQ

SN74CBT6800CDWR

Texas InstrumentsIn Stock: 749SN74CBT6800CDWR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the FSTU6800WMX are identified based on strict electrical and mechanical compatibility criteria. The following parameters determine valid substitution:

• Circuit configuration: 10 x 1:1 switching topology
• Voltage supply range: 4V ~ 5.5V single supply operation
• Operating temperature range: -40°C ~ 85°C
• Package type: 24-SOIC (0.295", 7.50mm Width)
• Mounting type: Surface Mount
• Independent circuits: 1

The SN74CBT6800CDWR from Texas Instruments meets all specified parameters and is classified as an active product, providing long-term availability and support.

Parameter Comparison

Engineering Selection Recommendations

The SN74CBT6800CDWR is the qualified substitute for the FSTU6800WMX. This recommendation is based on:

• Identical electrical specifications across all critical parameters
• Identical package and mounting configuration
• Active product status ensuring continued availability and manufacturing support
• RoHS3 compliance providing environmental and regulatory alignment
• Equivalent REACH and ECCN classifications

For applications currently using the FSTU6800WMX, transition to the SN74CBT6800CDWR is supported by matching electrical and mechanical characteristics. The active product status of the Texas Instruments component provides supply chain continuity for new designs and legacy system support.

Frequently Asked Questions (FAQ)

Q: Can the SN74CBT6800CDWR directly replace the FSTU6800WMX in existing designs?

A: Yes. Both components share identical circuit configuration (10 x 1:1), voltage supply range (4V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and package type (24-SOIC). Pin-to-pin compatibility is maintained.

Q: What is the difference between the 24-SOP and 24-SOIC package designations?

A: Both designations refer to the same physical package: 24-pin Small Outline Integrated Circuit with 0.295" width and 7.50mm body width. The terminology difference reflects manufacturer naming conventions; the packages are mechanically and electrically equivalent.

Q: Why is the FSTU6800WMX classified as obsolete?

A: Obsolete status indicates the component is no longer manufactured by onsemi. The SN74CBT6800CDWR from Texas Instruments provides an active alternative with identical specifications.

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

A: Both components share REACH Unaffected and EAR99 ECCN classifications. The SN74CBT6800CDWR carries RoHS3 compliance certification. Both maintain MSL 1 (Unlimited) moisture sensitivity levels.

Q: What packaging options are available for the SN74CBT6800CDWR?

A: The SN74CBT6800CDWR is supplied in Tape & Reel (TR) packaging format, suitable for automated assembly processes.