Datasheet Microchip USB2227 — 数据表

USB2227/USB2228
4th Generation USB 2.0 Flash Media Controller with
Integrated Card Power FETs
Highlights Complete System Solution for interfacing SmartMediaв„ў (SM) or xD Picture Cardв„ў (xD)1, Memory
StickВ® (MS), High Speed Memory Stick (HSMS),
Memory Stick PRO (MSPRO), MS Duoв„ў, Secure
Digital (SD), Mini-Secure Digital (Mini-SD), TransFlash (SD), MultiMediaCardв„ў (MMC), Reduced
Size MultiMediaCard (RS-MMC), NAND Flash,
Compact FlashВ® (CF) and CF Ultraв„ў I & II, and
CF form-factor ATA hard drives to USB 2.0 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 Hardware support for SD Security Command
Extensions On-chip power FETs for supplying flash media
card power with minimum board components USB Bus Power Certified 3.3 Volt I/O with 5V input tolerance on VBUS/
GPIO3 Complete USB Specification 2.0 Compatibility for
Bus Powered Operation
-Includes USB 2.0 Transceiver
-A Bi-directional Control and a Bi-directional
Bulk Endpoint are provided. 8051 8 bit microprocessor …