PRODUCTS & TECHNOLOGY
Programmable USB2 Controller Hubs with Simultaneous Support for USB2 and HSIC, Low-Power Modes
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Microchip Technology has announced the expansion of its USB2 Controller Hub (UCH2) portfolio. The seven new UCH2 ICs across three families provide programmability, enabling the developers of PCs and mobile devices to configure their designs without external memory. Additionally, these are Microchip’s first UCH2s to support both USB2 and USB High Speed Interchip (HSIC) connectivity, maximum battery life via low-power modes such as Link Power Management (LPM), and the ability to replace wall chargers with advanced battery charging modes, such as BC1.2, Apple, SE1 and China charging. For applications that need to communicate over multiple protocols, these UCH2s feature direct I/O bridging to I2C, SPI, UART and general-purpose I/O. They also have the flexibility to support the behaviors of multiple operating systems, such as vendor-specific messaging and FlexConnect for simple port reversals.
While the PC market is converting to USB3, most market forecasts predict that USB2 will remain predominant in mobile devices through at least 2015. This continued use of both USB3 and USB2 challenges the designers of PCs and mobile devices to ensure interoperability while providing new features and maximum battery life. Microchip’s seven new UCH2s across three families address these needs for both PC and mobile manufacturers. Microchip’s new UCH2s integrate “Quad Page” configuration OTP Flash memory, which reserves space for interoperability and other customizations by the designer, including four separate configuration opportunities. Additionally, Microchip makes it easy to generate configuration settings and program the OTP memory, via its new ProTouch Configuration Editor software tool.
The aforementioned ProTouch Configuration Editor software tool is available via a free download from http://www.microchip.com/get/2M4E. It is bundled with the ProLink programming software. Also available is the USB2534 Eval Board, for $399. This board supports the development of USB charging designs using the new three-member USB253X UCH2 family for mainstream USB2 applications.