FSUSB73UMX

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FSUSB73UMX

+Nomenclature

IC USB MUX/SWITCH 16UMLP

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Spécifications

Attribut Valeur
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Last Time Buy
Applications USB
Multiplexer/DemultiplexerCircuit 3:1
NumberofChannels 1
On-StateResistance(Max) 9Ohm
Voltage-SupplySingle(V+) 2.5V ~ 4.4V
Features Break-Before-Make, USB 2.0
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 16-UFQFN

Présentation

Description

FSUSB73UMX is a USB hub/controller IC from the FSUSB family (Fairchild Semiconductor, now ON Semiconductor). It provides hub functionality: one upstream port to connect to a host and multiple downstream ports to attach USB devices. It implements USB 2.0 High-Speed transceivers and handles hub management, device enumeration, and port-power control. The device includes features useful in embedded designs such as port overcurrent protection, ESD protection, and low-power modes. The “UMX” suffix indicates the package type (a compact surface-mount package). Typical applications are adding USB ports to a system (PC peripherals, embedded devices, docking stations). For exact port count, electrical specs, and power requirements, refer to the latest datasheet.

Equivalent

FSUSB73UMX is a USB hub/controller from Fairchild/ON Semiconductor. Common cross-reference equivalents (port count/USB version vary) include:
- Microchip USB2514B (4-port USB 2.0 hub)
- VIA Labs VL812 (4-port USB 3.0 hub)
- Cypress CY7C65640 (4-port USB 2.0 hub)
- TI TUSB4020 or TUSB8040 (4-port hub controllers)
- Renesas μPD720202/μPD720210 (USB 2.0 hub controllers)
Note: verify packaging/pinout and features in the datasheet for exact cross-reference.

Features

FSUSB73UMX is a USB 2.0 Hi-Speed hub controller. Key features include:
- Upstream port to the host; supports USB 2.0 Hi-Speed (up to 480 Mbps)
- Multiple downstream ports with individually controllable power switches
- Per-port overcurrent protection and current limiting
- Flexible power options: bus-powered or self-powered configurations
- Port suspend/resume and remote wakeup support
- Configuration/control via I2C/SPI/SMBus interface
- USB hub functionality with shared bandwidth
- Built-in protection: ESD/short-circuit protection on I/O
- Small UMX package for compact hub designs and low-power idle modes
Note: exact port count and I/O interface details may vary by package/revision; consult the datasheet for precise specifications.

Pinout

- Pin count: 16 pins (UMX package).
- Function: USB 2.0 high-speed 3:1 USB data-path switch (D+/D−) multiplexer, used to route a USB device to one of multiple hosts.

Manufacturer

- Manufacturer: Fairchild Semiconductor International, Inc., which is now part of ON Semiconductor.
- What kind of company: A multinational semiconductor company that designs and manufactures integrated circuits and discrete electronic components.

Application

FSUSB73UMX is a USB interface IC used to add USB connectivity in embedded designs. Common application areas include:
- USB host/controller integration in microcontroller-based systems
- USB-to-serial (UART) and USB-to-I2C/SPI bridge peripherals
- Data acquisition, measurement, and test equipment
- Industrial automation, sensors, and control panels
- Medical devices requiring USB communication
- Consumer electronics, multimedia devices, and portable products
- Point-of-sale/kiosk peripherals
- Development boards, evaluation kits, and prototyping tools

Package

FS USB73UMX uses a 28‑pin QFN package (4×4 mm) with a bottom exposed pad.

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