Altera Cyclone II die revision?

from the Cyclone II errata sheet:
The die revision is identified by the alphanumeric character (Z) before the 
fab code (first two alphanumeric characters) in the date code printed on the 
top side of the device.
A X?Z  ##   ####
         ^ Die Revision

my EP2C20F484C8N is labeld with (looks a little bit different :-( ):
K CAA9T0619A
is the die Revision A????
I need this to know, because I use dual clock FIFOs. (Do I need the 
workaround of the "M4K block write operations may fail ..."-error in the 
Revision A?)

Thanks, Manfred 

Hi Manfred,

 These package markings indicate rev A silicon.

Hope this helps,
Subroto Datta


On Jan 5, 12:09 am, "Manfred Balik" <manfred.ba...@tuwien.ac.at>
wrote:
> from the Cyclone II errata sheet:
> The die revision is identified by the alphanumeric character (Z) before the
> fab code (first two alphanumeric characters) in the date code printed on the
> top side of the device.
> A X?Z  ##   ####
>          ^ Die Revision
>
> my EP2C20F484C8N is labeld with (looks a little bit different :-( ):
> K CAA9T0619A
> is the die Revision A????
> I need this to know, because I use dual clock FIFOs. (Do I need the
> workaround of the "M4K block write operations may fail ..."-error in the
> Revision A?)
> 
> Thanks, Manfred