Hi everyone,

I'm looking for the datasheet of the SC643 clock generator.
This circuit was made by IMI, a company bought by Cypress in 2001.
This is a programmable PLL for PC motherboard (1998 era).
This datasheet is not available from Cypress.

Does anyone have this datasheet, or knows where to find it on the web
?
(or have some programming informations on it)

Thanks a lot.
Manu