Hello Joe,
The difference, the "E", here means that the new part is lead free / RoHS compliant.
For you to read the Mask Set Errata sheet (MSE), you can look into keyword search for the mask set.
Mask is written underneath the part number and is formatted:
0X00X
with 0 a digit between 0 and 9.
with X a letter between A and Z
EDIT: I was pinpointed to the "B" in the part you had before and I just didn't see.
This means this part has older flash generation (see datasheet for actual numbers) and probably other module enhancements.
There are quite a few posts on here about the SPI and they could be of great help to you ?
Alban.
Message Edited by Alban on
2007-09-28 11:47 AM