USB2224

`Complete System Solution for interfacing SmartMedia<sup>TM</sup> (SM) or xD Picture Card<sup>TM</sup> (xD), Memory Stick<sup>TM</sup> (MS), High Speed Memory Stick(HSMS), Memory Stick PRO (MSPRO), MSDuo<sup>TM</sup>, Secure Digital (SD), Mini-Secure Digital (Mini-SD), Transflash (SD), MultiMediaCard<sup>TM</sup>(MMC),Reduced Size Multimedia Card (RSMMC), NAND Flash, Compact FlashTM (CF), CF UltraTM I & II and CF form-factor ATA hard drives to USB2.0 bus.
− Supports USB Bulk Only Mass Storage Compliant Bootable BIOS
`Support for simultaneous operation of all above devices. (only one at a time of each of the following groups supported: CF or ATA drive, SM or XD or NAND, SD or MMC)
`On-Chip 4-Bit High Speed Memory Stick and MS PRO Hardware Circuitry
`On-Chip firmware reads and writes High Speed Memory Stick and MS PRO
`1-bit ECC correction performed in hardware for maximum efficiency
`USB Bus Power Certified
`3.3 Volt I/O with 5V input tolerance
`Complete USB Specification 2.0 Compatibility for Bus Powered Operation
− Includes USB2.0 Transceiver
− A Bi-directional Control and a Bi-directional Bulk Endpoint are provided.
`8051 8 bit microprocessor
− Provides low speed control functions
− 30 Mhz execution speed at 4 cycles per instruction average
− 12K Bytes of internal SRAM for general purpose scratchpad
− 768 Bytes of internal SRAM for general purpose scratchpad or program execution while re-flashing external ROM
`Double Buffered Bulk Endpoint
− Bi-directional 512 Byte Buffer for Bulk Endpoint
− 64 Byte RX Control Endpoint Buffer
− 64 Byte TX Control Endpoint Buffer
`Internal or External Program Memory Interface
− 64K Byte Internal Code Space or Optional 64K Byte External Code Space using Flash, SRAM or EPROM memory.
`On Board 12Mhz Crystal Driver Circuit
`On-Chip 1.8V Regulator for Low Power Core Operation
`Internal PLL for 480Mhz USB2.0 Sampling, Configurable MCU clock
`Supports firmware upgrade via USB bus if "boot block" Flash program memory is used
`15 GPIOs for special function use: LED indicators, button inputs, power control to memory devices, etc.
− Inputs capable of generating interrupts with either edge sensitivity
− Attribute bit controlled features:
− Activity LED polarity/operation/blink rate
− Full or Partial Card compliance checking
− Bus or Self Powered
− LUN configuration and assignment
− Write Protect Polarity
− Detach on no Card Inserted for Notebook apps
− Cover Switch operation for xD compliance
− Inquiry Command operation
− SD Write Protect operation
− Older CF card support
− Force USB 1.1 reporting
`Compatible with Microsoft WinXP, WinME, Win2K SP3, Apple OS10, Softconnex, and Linux Multi-LUN Mass Storage Class Drivers
`Win2K, Win98/98SE and Apple OS8.6 and OS9 Multi-LUN Mass Storage Class Drivers available from SMSC
`128 Pin TQFP Package (1.0mm height, 14mm x14mm footprint); PB free package also available

Operating Temperature Range ........................................0 to +70
Storage Temperature Range ...................................... -55°to +150
Lead Temperature Range (soldering, 10 seconds) ..................+325
Positive Voltage on any pin, with respect to Ground .................. 5.5V
Negative Voltage on any pin, with respect to Ground ........... ... -0.3V
Maximum V_DD, V_DDP ................................................................. +2.5V
Maximum V_DDIO, V_DDA ....................................................... ...... +4.0V

* Stresses above the specified parameters could cause permanent damage to the device. This is a stress rating only and functional operation of the device at any other condition above those indicated in the operation sections of this specification is not implied.

The USB2224 is a USB2.0 Bulk Only Mass Storage Class Peripheral Controller intended for supporting CompactFlash (CF and CF Ultra I/II) in True IDE Mode only, SmartMedia (SM) and XD cards, Memory Stick (MS), Memory Stick DUO (MSDUO) and Memory Stick Pro (MSPRO), Secure Digital (SD), and MultiMediaCard (MMC) flash memory devices. It provides a single chip solution for the most popular flash memory cards in the market.

The USB2224 consists of a USB2.0 PHY and SIE, buffers, Fast 8051 microprocessor with expanded scratchpad, and program SRAM, and CF, MS, SM and SD controllers. The SD controller supports both SDand MMC devices.

Provisions for external Flash Memory up to 64K bytes for program storage is provided.

12K bytes of scratchpad SRAM and 768 Bytes of program SRAM are also provided.

Fifteen GPIO pins are provided for indicators, external serial EEPROM for OEM id and system configuration information, and other special functions.

The internal ROM program is capable of implementing any combination of single or multi-LUN CF/SD/MMC/SM/MS reader functions with individual card power control and activity indication. SMSC also provides licenses** for Win98 and Win2K drivers and setup utilities. Note: Please check with SMSC for precise features and capabilities for the current ROM code release.