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SMSC - USB 2.0 High-Speed 2-Port Hub Controller

Numéro de référence USB2512I
Description USB 2.0 High-Speed 2-Port Hub Controller
Fabricant SMSC 
Logo SMSC 





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USB2512I fiche technique
USB2512i
Industrial Temperature
Rated USB 2.0 High-Speed
2-Port Hub Controller
PRODUCT FEATURES
Datasheet
General Description
The SMSC 2-Port Hub is a low power, OEM
configurable, STT (Single transaction translator) hub
controller IC with 2 downstream ports for embedded
USB solutions. The 2-port hub is fully compliant with the
USB 2.0 Specification and will attach to an upstream
port as a Full-Speed Hub or as a Full-/High-Speed Hub.
The 2-Port Hub supports Low-Speed, Full- Speed, and
High-Speed (if operating as a High-Speed Hub)
downstream devices on all of the enabled downstream
ports.
General Features
„ Hub Controller IC with 2 downstream ports
„
Enhanced OEM configuration options available
through either a single serial I2C EEPROM, or
SMBus Slave Port
„ 36-pin (6x6mm) QFN lead-free, RoHS compliant
package
„ Supports industrial temperature range of -40ºC - 85ºC
Hardware Features
„ Low power operation
„ Full Power Management with individual or ganged
power control of each downstream port
„ On-chip Power On Reset (POR)
„ Internal 1.8V Voltage Regulator
„ Fully integrated USB termination and Pull-up/Pull-
down resistors
„ On Board 24MHz Crystal Driver, Resonator or
External 24MHz clock input
„ Enhanced EMI rejection and ESD protection
performance
OEM Selectable Features
„ Customize Vendor ID, Product ID, and Device ID
„ Select whether the hub is part of a compound device
(When any downstream port is permanently
hardwired to a USB peripheral device, the hub is part
of a compound device)
„ Flexible port mapping and disable sequence. Ports
can be disabled/reordered in any order to support
multiple product SKUs. Hub will automatically reorder
the remaining ports to match the Host controller's
numbering scheme.
„ Programmable USB differential-pair pin location.
Ease PCB layout by aligning USB signal lines directly
to connectors
„ Programmable USB signal drive strength. Recover
USB signal integrity due to compromised system
environment using 2-level driving strength resolution
„ Select the presence of a permanently hardwired USB
peripheral device on a port by port basis
„ Configure the delay time for filtering the over-current
sense inputs
„ Configure the delay time for turning on downstream
port power
„ Indicate the maximum current that the 2-port hub
consumes from the USB upstream port
„ Indicate the maximum current required for the hub
controller
„ Pin Selectable Options for Default Configuration
— Select Downstream Ports as Non-Removable Ports
Applications
„ LCD monitors and TVs
„ Multi-function USB peripherals
„ PC mother boards
„ Set-top boxes, DVD players, DVR/PVR
„ Printers and scanners
„ PC media drive bay
„ Portable hub boxes
„ Mobile PC docking
„ Embedded systems
SMSC USB2512i
DATASHEET
Revision 1.92 (11-28-07)
Free Datasheet http://www.datasheet4u.com/

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