Intel 80286

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The Intel 80286 is a 16-bit microprocessor monolithic integrated circuit introduced in 1982. Initially offered speeds were 5, 6 or 8 MHz, later versions up to 25 MHz. The 80286 was the CPU in the IBM PC AT.

It expands the architecture of the earlier Intel 8086 to introduce memory management with physical address space up to 16 MB and "protected mode" intended to support multitasking operating systems, albeit retaining the limitation of 64 KB segments.

Floating-point operations were implemented in the optional Intel 80287 coprocessor.

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Some instruments using part Intel 80286

Instrument Manufacturer Class Model Description Introduced
11201 Tektronix Oscilloscope 11201 400 MHz sampling scope 1989
11401 Tektronix Oscilloscope 11401 Digitizing scope 1986
11402 Tektronix Oscilloscope 11402 Digital scope 1986

Pictures