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USB4640 Datasheet(PDF) 1 Page - SMSC Corporation |
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USB4640 Datasheet(HTML) 1 Page - SMSC Corporation |
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1 / 64 page  SMSC USB4640/USB4640i DATASHEET Revision 1.0 (06-09-09) PRODUCT FEATURES Datasheet USB4640/USB4640i High Speed Inter-Chip (HSIC) USB 2.0 Hub and Flash Media Controller General Description The SMSC USB4640/USB4640i is a Hi-Speed HSIC USB hub and card reader combo solution with an upstream port compliant to HSIC 1.0, a supplement to the USB 2.0 specification. The two downstream ports are compliant with the USB 2.0 specification. High Speed Inter-Chip (HSIC) is a digital interconnect bus that enables the use of USB technology as a low-power chip-to-chip interconnect at speeds up to 480 Mb/s. The HSIC interface is an industry standard 2-pin digital interface which uses standard USB software. The SMSC USB4640/USB4640i provides an ultra fast interface between an HSIC enabled host and today’s popular flash media formats. The controller allows read/write capability to flash media from the following families: – Secure DigitalTM (SD) – MultiMediaCardTM (MMC) – Memory Stick® (MS) – xD Picture CardTM (xD)1 The USB4640/USB4640i offers a versatile, cost-effective, and energy-efficient hub controller with 2 downstream USB 2.0 ports. This combo solution leverages SMSC’s innovative technology that delivers industry-leading data throughput in mixed-speed USB environments. Average sustained transfer rates exceeding 35 MB/s are possible2. Highlights Upstream HSIC port and 2 exposed Hi-Speed USB 2.0 downstream ports for external peripheral expansion The dedicated flash media reader is internally attached to a 3rd downstream port of the hub as a USB Compound Device — a single or multiplexed flash media reader interface PortMap — Flexible port mapping and port disable sequencing supports multiple platform designs PortSwap — Programmable USB differential-pair pin locations eases PCB design by aligning USB signal traces directly to connectors PHYBoost — Programmable USB transceiver drive strength recovers signal integrity 1.For xD-Picture CardTM support, please obtain a user license from the xD-Picture Card License Office. 2.Host and media dependent. Features Compliance with the following flash media card specifications SD 2.0 / MMC 4.2 / MS 1.43 / MS-Pro 1.02 / MS-Pro-HG 1.01 / MS-Duo 1.10 / xD 1.2 Low-power digital HSIC interface offers a replacement for onboard host and device connection for analog USB bus cable HSIC interface enables printers, mobile PCs, ultra-mobile PCs, and cell phone products to reduce the total power budget while taking full advantage of USB connectivity and compatibility with existing USB drivers and software External 1.2 V reference allows upstream and downstream HSIC links to use the same voltage reference Supports a single external 3.3 V supply source; internal regulators provide 1.8 V internal core voltage for additional bill of materials and power savings The transaction translator (TT) in the hub supports operation of Full-Speed and Low-Speed peripherals 9 K RAM | 64 K on-chip ROM Enhanced EMI rejection and ESD protection performance Hub and flash media reader/writer configuration from a single source: External I2C® ROM or external SPI ROM — Configures internal code using an external I2C EEPROM — Supports external code using an SPI Flash EEPROM — Customizable vendor ID, product ID, and language ID if using an external EEPROM Up to 9 configurable GPIOs for special functions The USB4640 supports the commercial temperature range of 0°C to +70°C The USB4640i supports the industrial temperature range of -40°C to +85°C 48-pin QFN lead-free, RoHS compliant package (7x7 mm) Applications 3G/4G handsets, smartphones, cell phones, and other mobile devices Desktop and mobile PCs Printers GPS navigation systems Media players/viewers Consumer A/V Set-top boxes Industrial products |
Similar Part No. - USB4640 |
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Similar Description - USB4640 |
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