SMSC USB2640i - Manual

SMSC USB2640/USB2641 Revision 2.0 (10-03-08)
DATASHEET
PRODUCT FEATURES
Datasheet
USB2640/USB2641
Ultra Fast USB 2.0 Multi-Format
Flash Media Controller/USB
Hub Combo
General Description
The SMSC USB2640/USB2641 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 formats from the
following families:
„
xD-Picture Card TM (xD) 1
„
Memory Stick TM (MS)
„
Secure Digital TM (SD)
„
MultiMediaCard TM (MMC)
The USB2640/USB2641 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 possible if the media and host can support those rates.
Highlights
„
48-pin QFN package
„
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
1.xD-Picture Card not applicable to USB2641.
Features
„
Single chip flash media controller
„
Transaction translator (TT) in the hub supports operation of
FS and LS peripherals
„
Over 30 port configuration options
„
Customizable vendor ID, product ID, language ID
„
On board 24 MHz crystal driver circuit
„
Optional external 24 MHz clock input
„
GPIO configuration and polarity: Up to 8 GPIOs for special
function use
„
Internal card power FET
„
8051 8-bit microprocessor
„
Internal regulator for 1.8V core operation
„
Optimized pinout improves signal flow, easing
implementation and allowing for improved signal integrity
treatment
„
Optimized for low latency interrupt handling
„
Hub and flash media reader/writer configuration from a
single source: External I 2 C ROM or external SPI ROM
„
EEPROM update via USB
„
Please see the USB2640/USB2641 Software Release Notes
for additional software features
Applications
„
Printers
„
Desktop and Mobile PCs
„
Consumer A/V
„
Media Players/Viewers
„
Vista ReadyBoost ™