woodelf wrote:
 Brent Hilpert wrote:
  Thanks for the correction, but why was it in such
a larger package?
 (4040 was a 28 or 40-pin package wasn't it?). 
 I think I read that lintel at that time could not test a larger
 package at time.Since the original market was a 4 function calculator
 small packages made sense.
 Ben. 
I think you have my question backwards, the question is what are the
additional 8 pins (24-pin package I have been advised) being used for on the
4040, given as Dwight says, that the bus interface is the same.