80486 used in Commodore and Amiga equipment

IC number: 80486SX, 80486DX, 80486DX2
IC function: 32-bit microprocessor
Related components: 8088, 80286, 80386SX, 80386DX, 8087, 80287, 80387SX, 80387DX (predecessors)

Component documentation
IC number	Manufacturer	Documentation
i486SX (80486SX), i486DX (80486DX), i486DX2 (80486DX2)	Intel	Web page

Component versions
IC number	Package	Speed	FPU	CBM part number	CBM part description
A80486SX-20	168-Pin Ceramic PGA 17 × 17	20 MHz	No	391361-01	IC Microprocessor 486SX-20 PGA
A80486DX-25	168-Pin Ceramic PGA 17 × 17	25 MHz	Yes	390748-01	IC, 80486, CPU, 25 MHz
A80486DX-33	168-Pin Ceramic PGA 17 × 17	33 MHz	Yes	390748-02	IC, 80486, CPU, 33 MHz
A80486DX-50	168-Pin Ceramic PGA 17 × 17	50 MHz	Yes	390748-03	IC, 80486, CPU, 50 MHz
A80486DX2-50	168-Pin Ceramic PGA 17 × 17	50 MHz, 25 MHz bus	Yes	391431-01	IC, 80486-DX2

Positions
Device	Position	Component	Package	Speed
T486-25C	U116	80486DX	PGA	25 MHz
T486-50C	U116	80486DX2	PGA	50 MHz