SMSC USB2514 manual

USB2514

USB 2.0 High-Speed 4-Port

Hub Controller

PRODUCT FEATURES				Datasheet
General Description		„	Flexible port mapping and disable sequence. Ports
The SMSC 4-Port Hub is low power, OEM configurable,			can be disabled/reordered in any order to support
			multiple product SKUs. Hub will automatically reorder
MTT (multi transaction translator) hub controller IC with
			the remaining ports to match the Host controller's
4 downstream ports for embedded USB solutions. The
			numbering scheme
4-port hub is fully compliant with the USB 2.0
		„	Programmable USB differential-pair pin location
Specification and will attach to an upstream port as a
		„	Ease PCB layout by aligning USB signal lines directly
Full-Speed Hub or as a Full-/High-Speed Hub. The 4-
			to connectors
Port Hub supports Low-Speed, Full-Speed, and High-
		„	Programmable USB signal drive strength. Recover
Speed (if operating as a High-Speed Hub) downstream
			USB signal integrity due to compromised system
devices on all of the enabled downstream ports.
			environment using 4-level driving strength resolution
General Features		„	Select the presence of a permanently hardwired USB
„	Hub Controller IC with 4 downstream ports		peripheral device on a port by port basis
		„	Configure the delay time for filtering the over-current
„	High-performance multiple transaction translator
			sense inputs
	MultiTRAK™ Technology Provides one transaction
			Configure the delay time for turning on downstream
	translator per port	„
			port power
„	Enhanced OEM configuration options available
			Configure the polarity of downstream port power
	through either a single serial i2C EEPROM, or	„
			control signals
	SMBus Slave Port
			Indicate the maximum current that the 4-port hub
„ 36-pin (6x6mm) and 48-Pin (7x7mm) QFN lead-free,		„
			consumes from the USB upstream port
	RoHS compliant packages
			Indicate the maximum current required for the hub
„	Footprint compatible with USB2513 and USB2512	„
			controller
	(36-pin QFN) to provide designers with flexibility
			Supports Custom String Descriptor up to 31
	regarding the quantity of USB expansion ports	„
			characters in length for:
	utilized without redesign
			–	Product String
Hardware Features
			–	Manufacturer String
„	Low power operation		–	Serial Number String
„	Full Power Management with individual or ganged	„	Pin Selectable Options for Default Configuration
	power control of each downstream port		— Select Downstream Ports as Non-Removable Ports
„	On-chip Power On Reset (POR)		— Select Downstream Ports as Disabled Ports
„	Internal 1.8V Voltage Regulator		— Select Downstream Port Power Control and Over-
„	Fully integrated USB termination and Pull-up/Pull-		Current Detection on a Ganged or Individual Basis
	down resistors		— Select Downstream Port Power Control Polarity
„	On Board 24MHz Crystal Driver, Resonator or		— Select USB Signal Drive Strength
	External 24/48MHz clock input		— Select USB Differential Pair Pin location
„	USB host/device speed indicator. Per-port 3-color		— Select on-chip or off-chip voltage regulator mode
	LED drivers that indicate the speed of USB host and	Applications
	device connection - hi-speed (480 Mbps), full-speed
	(12 Mbps), low-speed (1.5 Mbps) (48-pin QFN)	„	LCD monitors and TVs
„	Enhanced EMI rejection and ESD protection	„	Multi-function USB peripherals
	performance	„	PC mother boards
OEM Selectable Features		„	Set-top boxes, DVD players, DVR/PVR
„	Customize Vendor ID, Product ID, and Device ID	„	Printers and scanners
		„	PC media drive bay
„ Select whether the hub is part of a compound device
		„	Portable hub boxes
	(When any downstream port is permanently
		„	Mobile PC docking
	hardwired to a USB peripheral device, the hub is part
		„	Embedded systems
	of a compound device)

SMSC USB2514 DATASHEET

Revision 1.98 (11-19-07)