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i486SL-20 - Intel
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Intel i486SL-20
General Info
DesignerIntel
ManufacturerIntel
Model Numberi486SL-20
Part NumberKU80486SL-20
IntroductionNovember 9, 1992 (launched)
General Specs
Family80486
Series486SL
Frequency20 MHz
Bus typeFSB
Bus speed20 MHz
Bus rate20 MT/s
Clock multiplier1
Microarchitecture
Microarchitecture80486
Core Name486SL
Process800 nm
Transistors1,400,000
TechnologyCMOS
Word Size32 bit
Cores1
Max CPUs1 (Uniprocessor)
Max Memory4 GiB
Electrical
Vcore3.3 V ± 0.3 V
OP Temperature0 °C – 85 °C

i486SL-20 was a fourth-generation x86 microprocessor introduced by Intel in 1992. This chip, which is based on the 80486 microarchitecture, operated at 20 MHz. Like the original i486DX, this chip implemented the 80387 FPU on-die and incorporated System Management Mode (SMM). This series was designed to be a low power version of the i486DX, offering lower voltage and power saving features for portable mobile computers.

Cache[edit]

Main article: 80486 § Cache
Cache Info [Edit Values]
L1$ 8 KiB
0.00781 MiB
8,192 B
7.629395e-6 GiB
1x8 KiB 4-way set associative (unified, write-through policy)

Graphics[edit]

This chip had no integrated graphics processing unit.

Features[edit]

See also[edit]

Facts about "i486SL-20 - Intel"
base frequency20 MHz (0.02 GHz, 20,000 kHz) +
bus rate20 MT/s (0.02 GT/s, 20,000 kT/s) +
bus speed20 MHz (0.02 GHz, 20,000 kHz) +
bus typeFSB +
clock multiplier1 +
core count1 +
core name486SL +
core voltage3.3 V (33 dV, 330 cV, 3,300 mV) +
core voltage tolerance0.3 V +
designerIntel +
family80486 +
first launchedNovember 9, 1992 +
full page nameintel/80486/486sl-20 +
instance ofmicroprocessor +
l1$ description4-way set associative +
l1$ size0.00781 MiB (8 KiB, 8,192 B, 7.629395e-6 GiB) +
ldateNovember 9, 1992 +
manufacturerIntel +
max cpu count1 +
max memory4,096 MiB (4,194,304 KiB, 4,294,967,296 B, 4 GiB, 0.00391 TiB) +
max operating temperature85 °C +
microarchitecture80486 +
min operating temperature0 °C +
model numberi486SL-20 +
nameIntel i486SL-20 +
part numberKU80486SL-20 +
process800 nm (0.8 μm, 8.0e-4 mm) +
series486SL +
technologyCMOS +
transistor count1,400,000 +
word size32 bit (4 octets, 8 nibbles) +