IIT 80387 floating-point unit family

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Production parts

IIT 3C87-20

20 MHz
68-pin ceramic PGA

IIT 3C87-25

25 MHz
68-pin ceramic PGA

IIT 3C87-33

33 MHz
68-pin ceramic PGA

IIT 3C87-40

40 MHz
68-pin ceramic PGA

IIT 3C87-40 (PLCC)

40 MHz
68-pin plastic LCC on PGA adapter

IIT 3C87SX-16

16 MHz
68-pin plastic LCC

IIT 3C87SX-20

20 MHz
68-pin plastic LCC

IIT 3C87SX-25

25 MHz
68-pin plastic LCC

IIT 3C87SX-33

33 MHz
68-pin plastic LCC

IIT 3C87SX-40

40 MHz
68-pin plastic LCC

IIT 4C87DLC-33

33 MHz
68-pin PGA

IIT 4C87DLC-40

40 MHz
68-pin PGA

IIT XC87DLC-33