USB2641I Datasheet, PDF (1/8 Pages) SMSC Corporation – Industrial Temperature USB 2.0 Flash Media Controller and Hub Combo

USB2640i/USB2641i
Industrial Temperature USB 2.0
Flash Media Controller and Hub
Combo
PRODUCT FEATURES
Data Brief
General Description
The SMSC USB2640i/USB2641i is a USB 2.0
compliant, Hi-Speed hub for USB port expansion with an
attached mass storage class peripheral controller. The
controller allows read/write capability to popular flash
media from the following families:
„ Secure Digital^TM (SD)
„ MultiMediaCard^TM (MMC)
„ xD-Picture Card^TM (xD)¹
„ Memory Stick^®(MS)
The USB2640i/USB2641i is a fully integrated, single
chip solution providing USB expansion and integrated
flash card media reader/writer capability of ultra high
performance operation. Average sustained transfer
rates exceeding 35 MB/s are possible².
Highlights
„ Hub controller with internally connected ultra fast
flash media reader/writer and 2 exposed downstream
ports for external peripheral expansion
„ Flash media reader/writer employs multiplexed card
interfaces which are optimized for use with single
card insertion combo sockets
„ Hardware-controlled data flow architecture for all self-
mapped media
„ Optional support for external firmware access via SPI
interface
„ PortMap
— Flexible port mapping and port disable sequencing
supports multiple platform designs
„ PortSwap
— Programmable USB differential-pair pin locations eases
PCB design by aligning USB signal traces directly to
connectors
„ PHYBoost
— Programmable USB transceiver drive strength recovers
signal integrity
1.Support and capabilities for xD-Picture Card are not
applicable for the USB2641i. Please obtain a user li-
cense from the xD-Picture Card License Office to sup-
port this flash media format.
2.Host and media dependent.
Features
„ Compliant 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
„ Supports a single external 3.3 V supply source;
internal regulators provide 1.8 V internal core voltage
for additional bill of materials and power savings
„ The transaction translator (TT) in the hub supports
operation of Full-Speed and Low-Speed peripherals
„ 9 K RAM | 64 K on-chip ROM
„ Enhanced EMI rejection and ESD protection
performance
„ On board 24 MHz crystal driver circuit
„ Optional external 24 MHz clock input
„ Up to 9 GPIOs for special functions
„ 8051 8-bit microprocessor
„ Hub and flash media reader/writer configuration from
a single source: External I²C ROM or external SPI
ROM
— Configures internal code using an external I²C
EEPROM
— Supports external code using a SPI Flash EEPROM
— Customizable vendor ID, product ID, language ID
„ EEPROM update via USB
„ 48-pin QFN lead-free, RoHS compliant package (7x7
mm)
„ The SMSC USB2640i/USB2641i supports the
industrial temperature range of -40°C to 85°C
Applications
„ Desktop and mobile PCs
„ Personal mobile devices
„ Printers
„ GPS navigation systems
„ Media Players/Viewers
„ Consumer A/V
„ Set-top boxes
„ Industrial products
SMSC USB2640i/USB2641i
PRODUCT PREVIEW
Revision 2.1 (06-29-09)