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USB4640

SMSC
Part Number USB4640
Manufacturer SMSC
Description USB 2.0 Hub and Flash Media Controller
Published Sep 17, 2013
Detailed Description USB4640/USB4640i High Speed Inter-Chip (HSIC) USB 2.0 Hub and Flash Media Controller PRODUCT FEATURES General Descriptio...
Datasheet PDF File USB4640 PDF File

USB4640
USB4640

Overview
USB4640/USB4640i High Speed Inter-Chip (HSIC) USB 2.
0 Hub and Flash Media Controller PRODUCT FEATURES 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 Features „ Datasheet „ „ „ „ „ 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 „ „ „ „ 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...


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