描述 Description

Microchip's USB4640 is the world's first Hi-Speed Inter-Chip (HSIC) enabled USB 2.0 hub and Flash media card reader combo solution. The 480Mbps, 2-pin HSIC 1.O-compliant upstream port provides an ultra-fast interface between an HSIC-enabled host and today's most popular Flash media cards as well as a versatile, cost-effective and power-efficient USB 2.0 hub controller with two downstream ports for Hi-Speed/Full-Speed/Low-Speed USB port expansion. HSIC's digital interconnect bus bypasses the traditional USB analog PHY, reducing power consumption while maintaining transparency to the USB drivers and software.

The USB4640 serves as a fully-integrated, single-chip solution combining USB hub expansion with ultra high-performance Flash card media reader/writer capabilities. Average sustained Flash media transfer rates exceeding 35 MB/s* are possible if the media and host can support those rates. The Flash media controller allows read/write capability to Flash media formats from the following families: xD-Picture Card? (xD); Memory Stick? (MS); Secure Digital (SD); MultiMediaCard? (MMC).

*Results are based on actual measurements on evaluation platforms developed by Microchip, and are meant only as a general guideline, not a guarantee. Actual customer results may vary based on a number of factors, including board layout and measurement technique.

Microchip makes the following part-numbered device available for purchase only by customers who are xD-Picture Card licensees: USB4640. By purchasing or ordering any of such devices, Buyer represents, warrants, and agrees that Buyer is a duly licensed Licensee under an xD-Picture Card&rade; License Agreement with Fuji Photo Film Co., Ltd., Olympus Optical Co., Ltd., and Toshiba Corporation; and that Buyer will maintain in effect such xD-Picture Card license and will give Microchip reasonable advance notice of any termination or expiration of such xD-Picture Card license, but in no event less than five days advance notice. Microchip may discontinue making such devices available for purchase by Buyer and/or discontinue further deliveries of such devices if such xD-Picture Card license shall expire, terminate, or cease to be in force, or if Buyer is or becomes in default of such xD-Picture Card license.

*The?USBCheck online design review service is subject to?Microchip's Program Terms and Conditions and requires a myMicrochip?account.

特性 Features

Highlights
? HSIC upstream and USB 2.0 hub controller with two exposed USB downstream ports for external peripheral expansion
? Internally connected ultra-fast Flash media reader/writer
? Integrated hub and Flash media card reader combo solution minimizes footprint by approximately 40% compared to prior Microchip discrete devices
? Configures internal code using an external I2C EEPROM and supports external code using an SPI Flash ROM
? Supports commercial (0° to 70°C) and industrial (-40° to 85°C) temperature ranges
? 48-pin QFN RoHS-compliant package
Target Applications
? Tablet PCs
? Digital TVs
? Netbooks/Mobile Internet Devices (MIDs)
? Desktop and Mobile PCs
? Set-top Boxes
? Gaming Consoles
? Printers
? Media Players/Viewers
? Digital Photo Frames
? Monitors
? Industrial Products

應(yīng)用 Application

·Tablet PCs
·Digital TVs
·Netbooks/Mobile Internet Devices (MIDs)
·Desktop and Mobile PCs
·Set-top Boxes
·Gaming Consoles
·Printers
·Media Players/Viewers
·Digital Photo Frames
·Monitors
·Industrial Products

簡(jiǎn)介

USB4640屬于集成電路（IC）的專(zhuān)用。由制造生產(chǎn)的USB4640專(zhuān)用該系列產(chǎn)品可提供所需的功能，用以將信息源/信宿連到各種復(fù)雜或范圍狹窄應(yīng)用中的傳感器、變送器、致動(dòng)器、傳輸介質(zhì)或其他此類(lèi)端點(diǎn)。例如，汽車(chē)安全氣囊驅(qū)動(dòng)器、車(chē)身控制和信息娛樂(lè)總線(xiàn)、自適應(yīng)電纜均衡器、智能卡等等。