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Ultra Fast USB 2.0 Multi-Format Flash Media Controller/USB Hub Combo
Revision 2.0 (10-03-08) 8 SMSC USB2640/USB2641
DATASHEET
1.1 Device Features
Hardware Features
Single chip flash media controller
Transaction translator (TT) in the hub supports operation of FS and LS peripherals
Full power management with individual or ganged power control of each downstream port
Optional support for external firmware access via SPI interface
- 30 MHz or 60 MHz operation support
- Single bit or dual bit mode support
- Mode 0 or mode 3 SPI support
Memory Stick Specification 1.43
Memory Stick Pro Format Specification 1.02
Memory Stick Pro-HG Duo Format Specification 1.01 compliant
- Memory Stick, MS Duo, HS-MS, MS Pro-HG, MS Pro
xD-Picture Card 1.2 compliant
Secure Digital 2.0 / MultiMediaCard Specification 4.3 compliant
- SD 2.0, HS-SD, HC-SD
- TransFlash™ and reduced form factor media
- 1/4/8 bit MMC 4.2
SDIO and MMC streaming mode support
On board 24 MHz crystal driver circuit
Optional external 24 MHz clock input. Must be used with an external resistor divider to provide a
1.8V signal.
GPIO configuration and polarity
- Up to 8 GPIOs for special function use: LED indicators, button inputs, power control to memory
devices, etc. The number of actual GPIO’s depends on the implementation configuration used.
- One GPIO with up to 200 mA drive.
Internal card power FET
-Up to 200 mA operation available
-"Fold-back" short circuit current protected
8051 8-bit microprocessor
- 60 MHz - single cycle execution
- 64 KB ROM; 9 KB RAM
Internal Regulator for 1.8V core operation
Optimized pinout improves signal flow, easing implementation and allowing for improved signal
integrity treatment
Software Features
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