SMSC USB464, USB4640i manual

USB4640/USB4640i

High Speed Inter-Chip USB

2.0Hub and Flash Media Controller

PRODUCT FEATURES							Datasheet
	General Description				Features
	The SMSC USB4640/USB4640i is a Hi-Speed HSIC USB hub				„	Compliance with the following flash media card
	and card reader combo solution with an upstream port					specifications SD 2.0 / MMC 4.2 / MS 1.43 / MS-Pro 1.02 /
	compliant to HSIC 1.0, a supplement to the USB 2.0
						MS-Pro-HG 1.01 / MS-Duo 1.10 / xD 1.2
	specification. The two downstream ports are compliant with the
						Low-power digital HSIC interface offers a replacement for
	USB 2.0 specification.				„
	High Speed Inter-Chip (HSIC) is a digital interconnect bus that					onboard host and device connection for analog USB bus
						cable
	enables the use of USB technology as a low-power chip-to-chip				„	HSIC interface enables printers, mobile PCs, ultra-mobile
	interconnect at speeds up to 480 Mb/s. The HSIC interface is
						PCs, and cell phone products to reduce the total power
	an industry standard 2-pin digital interface which uses standard
						budget while taking full advantage of USB connectivity and
	USB software. The SMSC USB4640/USB4640i provides an
	ultra fast interface between an HSIC enabled host and today’s					compatibility with existing USB drivers and software
	popular flash media formats. The controller allows read/write				„	External 1.2 V reference allows upstream and downstream
	capability to flash media from the following families:					HSIC links to use the same voltage reference
		–	Secure DigitalTM (SD)		„	Supports a single external 3.3 V supply source; internal
		–	MultiMediaCardTM (MMC)			regulators provide 1.8 V internal core voltage for additional
		–	Memory Stick® (MS)			bill of materials and power savings
		– xD Picture CardTM (xD)1			„	The transaction translator (TT) in the hub supports operation
	The USB4640/USB4640i offers a versatile, cost-effective, and					of Full-Speed and Low-Speed peripherals
					„	9 K RAM 64 K on-chip ROM
	energy-efficient hub controller with 2 downstream USB 2.0					Enhanced EMI rejection and ESD protection performance
	ports. This combo solution leverages SMSC’s innovative				„
	technology that delivers industry-leading data throughput in				„	Hub and flash media reader/writer configuration from a
	mixed-speed USB environments. Average sustained transfer					single source: External I2C® ROM or external SPI ROM
	rates exceeding 35 MB/s are possible2.					— Configures internal code using an external I2C EEPROM
	Highlights					— Supports external code using an SPI Flash EEPROM
						— Customizable vendor ID, product ID, and language ID if using
„		Upstream HSIC port and 2 exposed Hi-Speed USB 2.0				an external EEPROM
		downstream ports for external peripheral expansion			„	Up to 9 configurable GPIOs for special functions
	„ The dedicated flash media reader is internally attached to a				„	The USB4640 supports the commercial temperature range
		3rd downstream port of the hub as a USB Compound				of 0°C to +70°C
		Device			„	The USB4640i supports the industrial temperature range of
		— a single or multiplexed flash media reader interface				-40°C to +85°C
„		PortMap			„	48-pin QFN lead-free, RoHS compliant package (7x7 mm)
		— Flexible port mapping and port disable sequencing supports			Applications
		multiple platform designs
„		PortSwap			„	3G/4G handsets, smartphones, cell phones, and other
		— Programmable USB differential-pair pin locations eases PCB
						mobile devices
		design by aligning USB signal traces directly to connectors
					„	Desktop and mobile PCs
„		PHYBoost
						Printers
		— Programmable USB transceiver drive strength recovers signal			„
		integrity			„	GPS navigation systems
					„	Media players/viewers
					„	Consumer A/V
		1.For xD-Picture CardTM support, please obtain a user license
					„	Set-top boxes
		from the xD-Picture Card License Office.
		2.Host and media dependent.				Industrial products
		SMSC USB4640/USB4640i		DATASHEET			Revision 1.0 (06-01-09)