USB Flash disk controllers

We are looking for a USB flash disk controller chip, requiring a minimum
of programming/development on the card, and hopefully nothing on the PC
side.  Basically, we want to be able to make a simple USB flash key-ring
device.  A quick google search turned up Alcor Micro AU9380, which looks
like the sort of thing we are after.  Has anyone used these chips, or
anything similar?  Or has anyone used other such controllers?  The main
part of the card will hopefully just be one of these controllers connected
to a flash chip - other bits and pieces on the card will mostly be
independant.

Thanks,

David Brown
Norway.

> We are looking for a USB flash disk controller chip, requiring a minimum
> of programming/development on the card, and hopefully nothing on the PC
> side.  Basically, we want to be able to make a simple USB flash key-ring
> device.  A quick google search turned up Alcor Micro AU9380, which looks
> like the sort of thing we are after.  Has anyone used these chips, or
> anything similar?  Or has anyone used other such controllers?  The main
> part of the card will hopefully just be one of these controllers connected
> to a flash chip - other bits and pieces on the card will mostly be
> independant.
>
> Thanks,

Hi David, the AT89C5130/1/2 chips will do what you want.
8051 with built in flash + USB + flash card interface..
Demo disk contains application to do USB Flash disk
Fully available (at least the 31 and 32) from Your friendly local
distributors.

For storage, you can use the AT45 Dataflash.

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Ulf Samuelsson   ulf@a-t-m-e-l.com
This is a personal view which may or may not be
share by my Employer Atmel Nordic AB