using ST7F521 with 3.3V devices

[dominique23]

Posted on January 07, 2003 at 11:04

using ST7F521 with 3.3V devices

[dominique23]

Posted on January 07, 2003 at 05:45

I would like to use ST7F521 with a 3.3V Fpga, I have been said that the 2 additionnal port (G and H) of the 80 pins version are TTL whereas the port in the 64pin version are all in true cmos level (3.5v min for H level).

I want to have confirmation of this information. Thanks.

[sjo]

Posted on January 07, 2003 at 08:16

The additional ports are TTL but your main concern would be that the newer revision silicon (datasheet v1.6) supports only 3.8-5.5v operating conditions.

Regards Spen

[dominique23]

Posted on January 07, 2003 at 09:41

thanks you very much but where can I find this version of the datasheet, I don't find it on this site...

[simms]

Posted on January 07, 2003 at 11:04

should be accessible from this site by selecting ST72521 product from the home page

try this link too, if it helps... http://us.st.com/stonline/books/pdf/docs/7601.pdf