Today I purchased a USB memory card reader. I cracked it open and saw that it basically only has an AU6477CL IC, which is based on the AU6370, which is a chip which takes SD/MMC/etc pins as input and acts as a USB driver for a computer to do i/o on the card. Here is the datasheet for the AU6370.
Where can I buy one of these things? It seems like every card reader in the universe is driven by one of these ICs, but short of buying 50,000 from alibaba (maybe), I can't find them anywhere.
Alternately, does anyone know of equivalent ICs which perform similar functions? Generically, what would I be searching for?
For hobbyists, is the best option really to use an AVR/PIC to write our own code (or existing libraries) if we were to create our own memory card reader?