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

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{{intel title|i486SX-20}}
 
{{intel title|i486SX-20}}
{{mpu
+
{{chip
 
| name                = Intel i486SX-20
 
| name                = Intel i486SX-20
 
| no image            = Yes
 
| no image            = Yes
Line 31: Line 31:
 
| s-spec 4            = SX678
 
| s-spec 4            = SX678
 
| s-spec 5            = SXE63
 
| s-spec 5            = SXE63
 +
| s-spec 6            = SX587
 +
| s-spec 7            = SX632
 +
| s-spec 8            = SX672
 +
| s-spec 9            = SZ700
 +
| s-spec 10          = SZ740
 
| s-spec es          =  
 
| s-spec es          =  
 
| s-spec qs          =  
 
| s-spec qs          =  
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| core count          = 1
 
| core count          = 1
 
| max cpus            = 1
 
| max cpus            = 1
| max memory          = 4 GB
+
| max memory          = 4 GiB
 +
 
  
| electrical          = Yes
 
 
| power              = 2.25 W
 
| power              = 2.25 W
 
| v core              = 5 V
 
| v core              = 5 V
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{{main|intel/microarchitectures/80486#Memory_Hierarchy|l1=80486 § Cache}}
 
{{main|intel/microarchitectures/80486#Memory_Hierarchy|l1=80486 § Cache}}
 
{{cache info
 
{{cache info
|l1 cache=8 KB
+
|l1 cache=8 KiB
|l1 break=1x8 KB
+
|l1 break=1x8 KiB
 
|l1 desc=4-way set associative
 
|l1 desc=4-way set associative
 
|l1 extra=(unified, write-through policy)
 
|l1 extra=(unified, write-through policy)

Latest revision as of 15:14, 13 December 2017

Edit Values
Intel i486SX-20
General Info
DesignerIntel
ManufacturerIntel
Model Numberi486SX-20
Part NumberA80486SX-20,
KU80486SX-20,
03G9565
S-SpecSX406, SX467, SX492, SX678, SXE63, SX587, SX632, SX672, SZ700, SZ740
IntroductionSeptember 16, 1991 (launched)
ShopAmazon
General Specs
Family80486
Series486SX
Frequency20 MHz
Bus typeFSB
Bus speed20 MHz
Bus rate20 MT/s
Clock multiplier1
CPUID420
Microarchitecture
Microarchitecture80486
Core Name486SX
Process1 µm, 800 nm
Transistors1,185,000
TechnologyCMOS
Word Size32 bit
Cores1
Max Memory4 GiB
Multiprocessing
Max SMP1-Way (Uniprocessor)
Electrical
Power dissipation2.25 W
Vcore5 V ± 5%
OP Temperature0 °C – 85 °C

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[edit]

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[edit]

This chip had no integrated graphics processing unit.

Features[edit]

See also[edit]

Facts about "i486SX-20 - Intel"
l1$ description4-way set associative +