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FSUSB73UMX is listed in the Analog Switches - Special Purpose range at ChipApex. The manufacturer field lists Fairchild Semiconductor. Its product description is HIGH-SPEED USB 2.0 SWITCH / MULT. Review the specifications below when checking this part for your BOM.
Analog Switches - Special Purpose specifications for FSUSB73UMX
- Description：HIGH-SPEED USB 2.0 SWITCH / MULT
- Series：*
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Applications：-
- Multiplexer/Demultiplexer Circuit：-
- Switch Circuit：-
- Number of Channels：-
- On-State Resistance (Max)：-
- Voltage - Supply, Single (V+)：-
- Voltage - Supply, Dual (V±)：-
- -3db Bandwidth：-
- Features：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
Analog Switches - Special Purpose datasheet and documents for FSUSB73UMX
Analog Switches - Special Purpose Overview
The FSUSB73UMX is a USB switch IC manufactured by onsemi, formerly Fairchild Semiconductor. It features a single channel with a 3:1 multiplexer/demultiplexer circuit configuration housed in a 16-UMLP (1.8x2.6) package. The device operates within a supply voltage range of 2.5V to 4.4V and supports an operating temperature range from -40°C to +85°C. Key electrical specifications include a maximum on-resistance of 9 ohms. The component complies with RoHS3 standards and carries an EAR99 classification.
Analog Switches - Special Purpose Feature Summary
- Supports USB 2.0 protocols
- Features break-before-make switching capability
Analog Switches - Special Purpose Applications
- USB interface protection
- Signal routing in portable devices
Analog Switches - Special Purpose Procurement Notes
Verify the current lifecycle status as the FSUSB73UMX is listed as obsolete or end-of-life by the manufacturer. Confirm availability through authorized distributors for remaining stock or consider alternative components if long-term supply stability is required for production planning.
Analog Switches - Special Purpose Selection Notes
Select this component when a compact, low-power USB switch with 3:1 mux functionality is needed. Ensure the design accommodates the 16-UMLP package dimensions and that the system voltage remains within the 2.5V to 4.4V operational window.
Analog Switches - Special Purpose Part Context
This part belongs to the FSUSB73 series of USB switches. It is functionally related to other parts in the Fairchild/onsemi USB switch portfolio, such as the FSUSB63, though pin counts and configurations may differ. The UM suffix indicates the specific UMLP packaging variant.
Analog Switches - Special Purpose Replacement Considerations
Check for direct pin-compatible substitutes within the same family or newer generations from onsemi. Verify that any replacement maintains the 16-pin UMLP footprint and similar electrical characteristics like on-resistance and voltage range.
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