Ilse Jurriën : June 8th 2005 - 22:09 CET
SMSC Hi-Speed USB Hub and Flash Card Controller
SMSC Hi-Speed USB Hub and Flash Card Controller : Getting the right set of digital photography connections to the front panel of a television, PC, or printer can be a difficult mechanical design challenge for equipment manufacturers. Now designers have a simple, cost-effective alternative to using multiple devices when adding the digital photography connections that consumers require. Today, SMSC, a leading semiconductor company delivering innovative system solutions spanning analog, digital and mixed-signal technologies, unveiled its USB2602 Hi-Speed USB hub and 15-in-1 flash media compound device controller. This industry-first solution combines two USB device controllers - flash media and hub - onto one chip.|
SMSC - USB Hub port support |
Since the device is USB based and serial cable length can reach five meters, design engineers have more flexibility to physically place digital photography connections where they are easy to access and convenient to use. Designers of products that interface with digital cameras are faced with several possible photograph transfer methods. By providing single-chip flash memory reader and USB hub port support, SMSC allows designers to use a single USB host port to open the gateway for digital photographs.
SMSC Hi-Speed USB flash card reader and USB hub
As digital cameras move to 8.0-megapixels and beyond, Hi-Speed USB flash card readers and Hi-Speed USB hub ports can enhance the user experience by increasing photo transfer speeds by a factor of 1.5 to 5 times, depending on flash media type. By significantly reducing the cost of implementing a USB flash card reader and hub, these valuable interfaces can be offered in lower cost, high-volume products. The three USB hub ports can be used for connections to flash drives, photo CD drives, USB-based wireless connections or PictBridge, which provides a direct connection between any two devices that support the protocol, such as digital cameras and photo printers. Since both interfaces are offered at a much lower cost, the end user benefits from a more useful product.
SMSC - Expansion of USB
"The expansion of USB into the consumer device market has driven this integration," said Steve Nelson, Vice President of Marketing - Connectivity Solutions at SMSC. "Many customers already use multiple USB device controllers attached to hubs to address the need for rapid feature additions with low software integration risk. Designers' stringent cost, standardization and ease-of-use requirements are driving a need for an integrated product design and SMSC is uniquely positioned with its breadth of Hi-Speed USB capabilities to provide this solution to customers today. By continually expanding the options designers have to add connections for digital photography, we are enabling our customers to design products more rapidly while they gain all of the benefits of higher levels of integration."
SMSC - Major cost advantages
The integration of two USB controllers delivers a reduction in board space and cost. A board space reduction of 100 square millimeters is realized from the elimination of the second device package alone. Additional board space used by the support components for two USB connections is also eliminated. By using the USB2602 instead of the multi-chip solution, component count is reduced by 30% and the total bill of materials cost is reduced by 20% based on reference designs done by SMSC. Since redundant USB connections are eliminated, the total power consumption is also reduced by 360mW. The on-chip ROM code for the USB2602 contains all of the latest configuration features, flash specification updates and robust card compatibility that come from the experience SMSC has gained through supporting over 8 million flash media reader units in the marketplace.
Hub Controller - Key Features
• Provides three downstream Hi-Speed USB ports via an internal hub.
• SMSC MultiTRAK technology - multi-transaction translators for Full Speed/Low Speed devices that are attached.
Flash Media Controller - Key features
• 5Volt input tolerance on 3.3V I/O for VBUS, Port Power and Over-Current Sense pins.
• Capable of operation from the following memory configurations: Internal 64K program ROM or array of ROM code features and hub configuration via external serial EEPROM.
• On-chip ROM code supports the following formats: SmartMedia, xD-Picture Card, Memory Stick, High Speed Memory Stick, Memory Stick PRO, Memory Stick Duo, Secure Digital (SD), High Speed SD, mini-SD, TransFlash SD, MultiMediaCard, Reduced Size MultiMediaCard, High Speed MultiMedia Card (4bit) and compatible with all MMC4.0 cards, NAND Flash, CompactFlash (CF), and CF Ultra I & II and CF form factor ATA hard drives.
• 128 Pin TQFP package (1.0mm height, 14mm X 14mm footprint); RoHS compliant, green, lead-free packaging also available.
• Compatible with Microsoft Windows XP, Windows Me, Windows 2000 SP3, Apple OS10, SoftConnex and Linux Multi-LUN mass storage class drivers.
SSMC USB2602 - Availability & Pricing
Samples of the USB2602 are available now with production quantities available later in June. Pricing will be $5.80 per unit (US list price) in 10K quantities.
Many of the world's most successful global technology companies rely upon SMSC as a go-to resource for semiconductor system solutions that span analog, digital and mixed-signal technologies. Leveraging substantial intellectual property, integration expertise and a compre-hensive global infrastructure, SMSC solves design challenges and delivers performance, space, cost and time-to-market advantages to its customers.