Hi,

If I tie the EA pin to VCC, and fuse the security pin in ATMEL 89c52, can I use the external eprom for the program code beyond internal ROM address. i.e. I want to know if can I use the 89C52 for securing my code by placing a part of it in the internal ROM of 89C52, and fusing the Lock bit, and the rest in the external EPROM?

Regards,

Mohit