USB2227/USB2228 is SMSC's fourth generation USB2.0 flash media controller that supports SmartMedia, xD Picture Card, Memory Stick, High Speed Memory Stick, Memory Stick PRO, MS Duo, Secure Digital, Mini-Secure Digital, TransFlash, MultiMediaCard, Reduced Size MultiMediaCard, NAND Flash, Compact Flash and CF Ultra I & II and Compact Flash form-factor ATA hard drives
The document describes the SMSC USB2227/USB2228, a complete system solution for interfacing SmartMedia, xD Picture Card, Memory Stick, SD, MMC, and other flash media formats to the USB 2.0 bus. It features integrated card power FETs to minimize board components and supports simultaneous operation of multiple device groups.
| Product Type | 4th Generation USB2.0 Flash Media Controller with Integrated Card Power FETs |
|---|---|
| Package Type | 128 Pin VTQFP (1.0mm height, 14mm x14mm footprint) |
| Internal SRAM | 12K Bytes for general purpose scratchpad |
| Clock Speed | 30 Mhz execution speed at 4 cycles per instruction average |
| Bus Power Certified | Yes |
No, it supports simultaneous operation only within specific groups: one at a time of each group such as CF or ATA drive, SM or XD or NAND, SD or MMC.
It uses an 8051 8 bit microprocessor with low speed control functions.