• State Not Answered
  • Locked Locked
  • Replies 1 reply
  • Subscribers 24 subscribers
  • Views 1261 views
  • Users 0 members are here
Options
Related
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

AT89C51 program space

RHolding

I am using the AT89C51 which has 64k of internal programming space but I need more. I can use the PSEN* line to use external memory so two questions: 1) if I add 64k, can I continue to use internal memory and have 128k available.  2) If I lose the internal memory, can I add more than 64k external?

thanks   Robert