intel 386 marking & reference


On CPU top intel
i386


A80386DX-25 IV
XX218
LI155181
INTEL ®© '85
intel
i386


A80386DX-25IV
SX218
LI155181
INTEL ®© '85

intel 386 Processor Part Mark
80386DX 80386SX= 386 w/o FPU
80386DX= 386 w/ FPU
A A= 132pin PGA (Pin Grid Array)
SX218 - S-spec S-spec
LI155181 serialization number
25 - processor speed 12-40MHz
SX218 386DX25 IV

(275.000 transistors 386, QFP 100pin 387)