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Difference between revisions of "intel/80486/486sx-20"
< intel‎ | 80486

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| core count          = 1
 
| core count          = 1
 
| max cpus            = 1
 
| max cpus            = 1
| max memory          = 4 GB
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| max memory          = 4 GiB
  
 
| electrical          = Yes
 
| electrical          = Yes

Revision as of 02:42, 23 June 2017

Template:mpu i486SX-20 was a fourth-generation x86 microprocessor introduced by Intel in 1991. This chip, which is based on the 80486 microarchitecture, operated at 20 MHz. In contrast to the i486DX chips, the i486SX line had no functional FPU on-die.

Cache

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

Graphics

This chip had no integrated graphics processing unit.

Features

See also

Facts about "i486SX-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 name486SX +
core voltage5 V (50 dV, 500 cV, 5,000 mV) +
core voltage tolerance5% +
cpuid420 +
designerIntel +
family80486 +
first launchedSeptember 16, 1991 +
full page nameintel/80486/486sx-20 +
instance ofmicroprocessor +
l1$ description4-way set associative +
l1$ size8 KiB (8,192 B, 0.00781 MiB) +
ldateSeptember 16, 1991 +
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 numberi486SX-20 +
nameIntel i486SX-20 +
part numberA80486SX-20 +, KU80486SX-20 + and 03G9565 +
power dissipation2.25 W (2,250 mW, 0.00302 hp, 0.00225 kW) +
process1,000 nm (1 μm, 0.001 mm) + and 800 nm (0.8 μm, 8.0e-4 mm) +
s-specSX406 +, SX467 +, SX492 +, SX678 +, SXE63 +, SX587 +, SX632 +, SX672 +, SZ700 + and SZ740 +
series486SX +
smp max ways1 +
technologyCMOS +
transistor count1,185,000 +
word size32 bit (4 octets, 8 nibbles) +