Support Micro-SD Card / TransFlash
Support USB Interface :

Fully compatible with USB Specification Version 2.0 & 1.1

High speed 480Mbit/second supporting

Full speed 12Mbit/second supporting
Support SD system specification : version 2.0 (SDHC)
Internal RAM:

Internal RAM: 256 Bytes.

External RAM: 2KB (On Chip)
Support SRAM Buffer (Dual Buffer Mode):
Support Windows ME / 2000 / XP / Vista without device driver
Support Mac OS 10.2.8 and above without device driver
Support Linux Kernel 2.4.10 and above without device driver
Package type: 64-Pin LQFP/24-pin SSOP
Operating Voltage: build-in 5V~3.3V and 3.3V~1.8V regulator.
USB bus-powered capability.
Working Frequency: 12MHz.