USB4640I-HZH-03-TR

The SMSC USB4640I is a Hi-Speed HSIC USB hub and card reader combo solution with an upstream port that is compliant to HSIC 1.0 (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 chipto- 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 USB4640I provides an ultra fast interface between an HSIC enabled host and several 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 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.

• 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; and 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
• HSIC interface provides use of USB connectivity and compatibility with existing USB drivers and software
• External 1.2 V reference allows upstream/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 hub transaction translator (TT) supports Full-Speed and Low-Speed peripheral operation
• 9 KB RAM | 64 KB on-chip ROM
• Enhanced EMI rejection and ESD protection performance
• Hub and fl