E = Extended (-40°C to 105°C)A3 = Automotive grade (-40°C to 125°C)
X
Sector for Write Protect (WP#/ACC=L)
T = Highest address sector protectedB = Lowest address sector protectedH = Highest address sector protected, no BYTE#L = Lowest address sector protected, no BYTE#U = Top boot; top two blocks protected by Vpp/WP#D = Bottom boot; bottom two blocks protected by Vpp/WP#
Note: Part number description table describes usual part-numbering system for more chips, therefore this table can contain information, that might not be valid for the actually selected chip. The information here are provided on the best-effort basis and might be either inaccurate or incoplete. Therefore always check the latest datasheet of the chip for part number description detail. If you find some inaccuracy, let us please know.