Brand new vintage the key chain of intel 80386 the Computer Inside /80387 Intel Math Coprocessors memorabilia with case
This keychain has a 386 CPU die on one side, and 387 FPU die on the opposite side. Both dies are smaller than in two key chains above. 80386 is 6.5 mm x 6 mm, and 80387 is 5.5 mm x 5.5 mm. Apparently, they both were made on more modern 1 micron CHMOS IV process.
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