Industrial Temperature USB 2.0 Flash Media Controller and Hub Combo

Revision 2.1 (06-29-09)

4

SMSC USB2640i/USB2641i

PRODUCT PREVIEW

Device Features

Hardware Features

Single chip flash media controller

The SMSC USB2640i/USB2641i supports the industrial temperature range of -40°C to 85°C

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

Compliant with the following flash media card specifications:

Secure Digital 2.0 / MultiMediaCard 4.2

- 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

Memory Stick 1.43

Memory Stick Pro Format 1.02

Memory Stick Pro-HG Duo Format 1.01

- Memory Stick, MS Duo, HS-MS, MS Pro-HG, MS Pro

Memory Stick Duo 1.10

xD-Picture Card 1.2 (USB2640i only)

On board 24 MHz crystal driver circuit

Optional external 24 MHz clock input

- Must be used with an external resistor divider to provide a 1.8 V signal

Up to 9 GPIOs: Configuration and polarity for special function use such as LED indicators, button

inputs, and power control to memory devices

- The number of actual GPIOs depends on the implementation configuration used

- One GPIO available with up to 200 mA drive and protected “fold-back” short circuit current

8051 8-bit microprocessor

- 60 MHz - single cycle execution

- 64 KB ROM; 9 KB RAM

Internal regulator for 1.8 V core operation

Optimized pinout improves signal flow, easing implementation and allowing for improved signal

integrity treatment

Software Features

Optimized for low latency interrupt handling

SPI ROM

EEPROM update via USB

Please see the USB2640i/USB2641i Software Release Notes for additional software features