Ultra Fast USB 2.0 Multi-Format Flash Media Controller/USB Hub Combo

1.1Device 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 I2C ROM or external

SPI ROM

„EEPROM update via USB

„Please see the USB2640/USB2641 Software Release Notes for additional software features

Revision 2.0 (10-03-08)

8

SMSC USB2640/USB2641

 

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