Catalog
USB3.0 3port Hub
Key Features
• Not Recommended for new designs - See USB5744
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• Three downstream USB 3.0 ports* Designed for low-power operation and low thermal dissipation
• * On-chip 8051 µC manages GPIOs, VBUS, and other hub signals
• * Configuration via on-chip programmable ROM, SPI ROM or SMBus
• * Manufacturing line and field update capabilities
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• Power management capability on GPIO/LED pins
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• One-Time Programmable (OTP) ROM (8 kbit), including on-chip charge pump
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• IETF RFC 4122 compliant 128-bit UUID
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• Compatible with Microsoft® Windows® 8 and other major OS’s
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• 64-pin, low-cost QFN packages enable 2-layer PCB design
Description
AI
Microchip's USB553xB hub controllers are 2/3/4/7-port, SuperSpeed (SS)/Hi-Speed (HS), low-power, configurable and fully-compliant with the USB 3.0 specification. The USB553xB also support Full Speed (FS) and Low Speed (LS) USB signaling, offering complete coverage of all defined USB operating speeds. The new SuperSpeed hub controller (available on 4 of the 7 ports for the USB5537B) operates in parallel with the USB 2.0 controller, so 5Gbps SuperSpeed data transfers are not affected by slower USB 2.0 traffic.
\*The [**USBCheck online design review**](https://www.microchip.com/en-us/support/design-help/design-check-services) service is subject to Microchip's [Program Terms and Conditions](https://www.microchip.com/en-us/about/legal-information/microchip-terms-and-conditions-of-sale) and requires a myMicrochip account.