USB2512B-I/M2 Microchip

USB251xB/xBi USB 2.0 Hi-Speed Hub Controller General Description Features The Microchip USB251xB/xBi hub is a family of low- USB251xB/xBi products are fully footprint com- power, configurable, MTT (multi transaction translator) patible with USB251x/xi/xA/xAi products as direct hub controller IC products for embedded USB solu- drop-in replacements tions. The x in the part number indicates the number of Cost savings include using the same PCB downstream ports available, while the B indicates bat- components and application of USB-IF Compliance tery charging support. The Microchip hub supports low- by Similarity speed, full-speed, and hi-speed (if operating as a hi- Full power management with individual or ganged speed hub) downstream devices on all of the enabled power control of each downstream port downstream ports. Fully integrated USB termination and pull-up/pull- down resistors Highlights Supports a single external 3.3 V supply source internal regulators provide 1.2 V internal core volt- High performance, low-power, small footprint hub age controller IC with 2, 3, or 4 downstream ports Onboard 24 MHz crystal driver or external Fully compliant with the USB 2.0 Specification 1 24 MHz clock input Enhanced OEM configuration options available 2 Customizable vendor ID, product ID, and device through either a single serial I C EEPROM, or ID SMBus slave port 4 kilovolts of HBM JESD22-A114F ESD protection TM MultiTRAK (powered and unpowered) - High-performance multiple transaction trans- Supports self- or bus-powered operation lator which provides one transaction transla- Supports the USB Battery Charging specification tor per port Rev. 1.1 for Charging Downstream Ports (CDP) PortMap The USB251xB/xBi offers the following packages: - Flexible port mapping and disable sequenc- - 36-pin SQFN (6x6 mm) (Preferred) ing - 36-pin QFN (6x6 mm) (Legacy) PortSwap USB251xBi products support the industrial tem- - Programmable USB differential-pair pin loca- perature range of -40C to +85C tions ease PCB design by aligning USB sig- nal lines directly to connectors USB251xB products support the extended com- mercial temperature range of 0C to +85C PHYBoost - Programmable USB signal drive strength for Applications recovering signal integrity using 4-level driv- ing strength resolution LCD monitors and TVs Multi-function USB peripherals PC motherboards Set-top boxes, DVD players, DVR/PVR Printers and scanners PC media drive bay Portable hub boxes Mobile PC docking Embedded systems 2010 - 2015 Microchip Technology Inc. DS00001692B-page 1USB251xB/xBi TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors microchip.com. We welcome your feedback. Most Current Data Sheet To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: