Low-power USB-to-UART bridge controller lowers dev costs
6/12/2012 1:00 PM EDT
The EZ-USB USB-UART Bridge Controller (CY7C64225) from Cypress Semiconductor Corp. offers a cost-effective, low-power solution to convert legacy UART (Universal Asynchronous Receiver/Transmitter) interfaces to Full-Speed USB 2.0 interfaces. No additional firmware/software development effort is needed, reducing time-to-market and development costs for system manufacturers.
The new controller offers sleep currents as low as 6 µA. It features USB remote wake-up, device enumeration signaling, and both bus- and self-powered modes, enabling manufacturers to meet USB-IF standards. The device includes an integrated clock generator that eliminates the need for an external crystal, reducing BOM cost and board space.
The EZ-USB USB-UART Bridge Controller incorporates 128 bytes of programmable memory to configure device parameters including vendor and product IDs, string descriptors and power mode (self-powered or bus-powered). A software configuration utility is available that assists customers to modify these parameters via the USB port. Cypress also provides a driver for use with 32- and 64-bit versions of Windows 7, Windows Vista and Windows XP.
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The CY7C64225 is in full production today and available for ordering from Cypress and its distribution partners. It is offered in a 28-pin SSOP package that can be mounted on a two-layer printed circuit board. A product datasheet, drivers and a software configuration utility are available for download on the Cypress website.