USB2642 USB 2.0 Hub and Flash Media Card Controller Combo General Description Features The USB2642 is a USB 2.0 compliant, hi-speed hub Single-chip USB 2.0 hub controller with 2 and card reader combo solution. This fully-integrated, exposed hi-speed downstream ports single chip solution provides USB expansion and flash The dedicated flash media reader is internally media reader/writer integration. The Microchip attached to a 3rd downstream port of the hub as a USB2642 provides an ultra fast interface between a USB compound device USB host and todays popular flash media formats. The Hub and flash media reader/writer configuration controller allows read/write capability to flash media from a single source: including the following: - Configures internal code using an external TM (SD) Secure Digital SPI ROM TM SD High Capacity (SDHC) - Supports execution of external code from SPI TM SD Extended Capacity (SDXC) Flash EEPROM TM (MMC) MultiMediaCard - Supports custom vendor, product, and lan- TM guage ID when using an external EEPROM Embedded MultiMediaCard (eMMC) Supports full power management with individual The USB2642 offers a versatile, cost-effective and or ganged power control of each downstream port energy-efficient hub controller with 2 downstream USB Transaction Translator (TT) in the hub supports 2.0 ports and a flash media interface. The flash media operation of FS and LS peripherals interface can support sustained transfer rates exceed- ing 35 MB/s. Single 24 MHz crystal support 2 2 TM Control of peripheral I C devices by USB host. C over USB Additionally, the USB2642 provides an I 2 bridge and an SD over USB bridge. The I C bridge Supports internally or externally regulated 1.8 V 2 allows for control of any I C slave device operating at core voltage operation 50KHz serial clock. Supports storage addressability of up to 2TB RoHS compliant package Highlights - USB2642: 48-pin (7x7 mm) QFN Temperature ranges: PortMap - Commercial Range (0 C to +70 C) - Flexible port mapping and port disable sequencing supports multiple platform - Industrial Range (-40 C to +85 C) designs PortSwap Target Applications - Programmable USB differential-pair pin loca- Desktop and mobile PCs tions eases PCB design by aligning USB sig- Monitors and televisions nal traces directly to connectors Mobile PC docking PHYBoost Consumer A/V - Programmable USB transceiver drive Media players/viewers strength recovers signal integrity Printers Flash media card readers/writers 2014-2021 Microchip Technology Inc. DS00001578F-page 1USB2642 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:
