IBM 8087 floating-point unit family

IBM Corporation didn't manufacture 8087 microprocessors. Instead, they re-branded Intel 8087 FPUs by stamping "IBM" name on them. There are three known IBM re-branded co-processors - C8087, C8087-3 and C8087-6.

Production floating-point units

IBM C8087
5 MHz
40-pin side-brazed ceramic DIP
"IBM" stamped on the chip
IBM C8087-3
5 MHz
40-pin side-brazed ceramic DIP
"IBM" stamped on the chip
IBM C8087-6
40-pin side-brazed ceramic DIP
"IBM" stamped on the chip
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At a glance

Type:
16-bit floating-point unit
Frequency (MHz):
5
Sockets:
DIP40