Possible IC relabelling


AMD_2029F040.jpg According to AMD's data sheet on the AM29F040, the electronic signature (device ID) that the AM29F040 returns is 01A4  (01A4 = AMD 29F040).

The AMD branded IC on the left instead returns C2A4  (C2A4 = Micronix 29F040).

Purposely relabelled to a make (AMD) that can command more money ?

Or, to keep things simple, all 29F040 get relabelled with the same label ?
Mislabelled_V20.jpg The problem here is that "V20" is inconsistent with "D70116".
V20 = D70108
V30 = D70116

This is a mistake that one would not expect NEC to make.



An example of IC relabelling at here.