Hi,

>The AT89S53 has ISP like the 8252 but 12K
>code eeprom (no data eeprom). I don't see
>any price difference.

I'm relatively inexperienced in purchasing these devices so when the RS and Farnell catalogue price (for single devices) have the 8252 at £18/£20 and Farnell have the 53 at £10.75 it looks like the 53 costs less.

Perhaps it's my UK software brain.

Cheers,

Luke