Intel 80286
E167913
The Intel 80286 is a 16-bit microprocessor introduced in the early 1980s that added protected mode and advanced memory management features, enabling more powerful multitasking operating systems on IBM PC/AT–class computers.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Intel 80286 canonical | 8 |
| Intel 80286 architecture | 1 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
16-bit microprocessor
ⓘ
microprocessor ⓘ x86 microprocessor ⓘ |
| addressBusWidth | 24-bit ⓘ |
| application |
advanced business software of the 1980s
ⓘ
multitasking operating systems ⓘ |
| architecture | x86 ⓘ |
| backwardCompatibility | binary compatible with Intel 8086 in real mode ⓘ |
| clockSpeedRange | 6 MHz to 25 MHz ⓘ |
| dataBusWidth | 16-bit ⓘ |
| designer |
Intel Corporation
ⓘ
surface form:
Intel
|
| influenced | design of later x86 processors such as Intel 80386 ⓘ |
| initialClockSpeed | 6 MHz ⓘ |
| introduced | 1982 ⓘ |
| introductionContext | successor to Intel 8086 ⓘ |
| manufacturer |
Intel Corporation
ⓘ
surface form:
Intel
|
| marketSegment |
business computers
ⓘ
personal computers ⓘ |
| maxClockSpeed | 25 MHz ⓘ |
| maxPhysicalAddressSpace | 16 MB ⓘ |
| notableFeature |
advanced memory management
ⓘ
hardware-based memory protection ⓘ improved performance over Intel 8086 ⓘ privilege levels ⓘ protected mode ⓘ segmented memory with descriptors ⓘ support for multitasking operating systems ⓘ task state segments ⓘ |
| notableLimitation | cannot easily return from protected mode to real mode via software ⓘ |
| numericCoprocessorSupport |
x87 FPU
ⓘ
surface form:
Intel 80287
|
| packageType |
68-pin PGA
ⓘ
68-pin PLCC ⓘ |
| powerSupplyVoltage | 5 V ⓘ |
| predecessor |
Intel 8086
ⓘ
Intel 8088 ⓘ |
| processTechnology | 1.5 µm ⓘ |
| protectedModeAddressSpace | 16 MB ⓘ |
| realModeAddressSpace | 1 MB ⓘ |
| successor | Intel 80386 ⓘ |
| supportsMode |
protected mode
ⓘ
real mode ⓘ |
| supportsPaging | no ⓘ |
| supportsVirtualMemory | yes (via segmentation) ⓘ |
| transistorCount | 134000 ⓘ |
| usedIn |
IBM PC AT
ⓘ
surface form:
IBM PC/AT
IBM PC AT ⓘ
surface form:
IBM PC/AT–class computers
|
| usedWithCoprocessor |
x87 FPU
ⓘ
surface form:
Intel 80287
|
| wordSize | 16-bit ⓘ |
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Intel 80286 architecture