SMSC USB2512Ai - Manual

SMSC USB2512Ai
DATASHEET
Revision 1.97 (08-11-08)
Datasheet PRODUCT FEATURES
USB2512Ai
Industrial Temperature Rated
USB 2.0 Hi-Speed 2-Port Hub
Controller
General Description
T h e S M S C 2 - P o r t H u b i s a l o w p o w e r, O E M
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-/Hi-Speed Hub.
The 2-Port Hub supports Low-Speed, Full-Speed, and
Hi-Speed (if operating as a Hi-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 I
2
C EEPROM, or
SMBus Slave Port
„ 36-pin (6x6mm) QFN lead-free RoHS compliant
package
„ Supports industrial temperature range of -40ºC to
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
„ Customizable 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 or reordered in any order to support
multiple product SKUs. The 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 Option for Default Configuration:
Select Downstream Ports as Non-Removable Ports
Applications
„ LCD monitors and TVs
„ Multi-function USB peripherals
„ PC motherboards
„ Set-top boxes, DVD players, DVR/PVR
„ Printers and scanners
„ PC media drive bay
„ Portable Hub boxes
„ Mobile PC docking
„ Embedded systems