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Difference between revisions of "intel/80486/486dx-25"
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{{intel title|i486DX-25}}
 
{{intel title|i486DX-25}}
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{{mpu
+
{{chip
 
| name                = Intel i486DX-25
 
| name                = Intel i486DX-25
−
| no image            = Yes
+
| image              = Intel i486 DX 25MHz SX328.jpg
−
| image              =  
 
 
| image size          =  
 
| image size          =  
−
| caption            =  
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| caption            = A80486DX-25, S-Spec SX328
 
| designer            = Intel
 
| designer            = Intel
 
| manufacturer        = Intel
 
| manufacturer        = Intel
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| bus rate            = 25 MT/s
 
| bus rate            = 25 MT/s
 
| clock multiplier    = 1
 
| clock multiplier    = 1
−
| s-spec              =  
+
| s-spec              = SX250
 +
| s-spec 2            = SX300
 +
| s-spec 3            = SX308
 +
| s-spec 4            = SX328
 +
| s-spec 5            = SX418
 +
| s-spec 6            = SX493
 +
| s-spec 7            = SX728
 
| s-spec es          =  
 
| s-spec es          =  
−
| s-spec qs          =  
+
| s-spec qs          = Q0143
−
| cpuid              =  
+
| cpuid              = 401
 +
| cpuid 2            = 402
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| cpuid 3            = 404
  
 
| microarch          = 80486
 
| microarch          = 80486
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| core count          = 1
 
| core count          = 1
 
| max cpus            = 1
 
| max cpus            = 1
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| max memory          = 4 GB
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| max memory          = 4 GiB
  
−
| electrical          = Yes
+
 
−
| power              =  
+
| power              = 2.75 W
 
| v core              = 5 V
 
| v core              = 5 V
−
| v core tolerance    =  
+
| v core tolerance    = 5%
 
| temp max            = 85 °C
 
| temp max            = 85 °C
 
| temp min            = 0 °C
 
| temp min            = 0 °C
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| package size        = CPGA
 
| package size        = CPGA
 
| package 2          = PQFP-196
 
| package 2          = PQFP-196
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| package 2 type     = PQFP
+
| package type 2      = PQFP
 
| package 3          = SQFP-208
 
| package 3          = SQFP-208
−
| package 3 type     = SQFP
+
| package type 3      = SQFP
 
| socket              = Socket 1  
 
| socket              = Socket 1  
 
| socket 2            = Socket 2
 
| socket 2            = Socket 2
 
| socket 3            = Socket 3
 
| socket 3            = Socket 3
 
}}
 
}}
 +
'''i486DX-25''' was a fourth-generation [[x86]] [[microprocessor]] introduced by [[Intel]] in 1989. This chip, which is based on the {{intel|microarchitectures/80486|80486 microarchitecture}}, operated at 25 MHz. This chip implemented the {{intel|80387}} [[FPU]] on-die and incorporated {{intel|System Management Mode}} (SMM).
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 +
== Cache ==
 +
{{main|intel/microarchitectures/80486#Memory_Hierarchy|l1=80486 § Cache}}
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{{cache info
 +
|l1 cache=8 KiB
 +
|l1 break=1x8 KiB
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|l1 desc=4-way set associative
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|l1 extra=(unified, write-through policy)
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}}
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 +
== Graphics ==
 +
This chip had no integrated graphics processing unit.
 +
 +
== Features ==
 +
* {{intel|System Management Mode}} (SMM)
 +
 +
== See also ==
 +
* {{intel|80486|80486 family}}

Latest revision as of 15:13, 13 December 2017

Edit Values
Intel i486DX-25
Intel i486 DX 25MHz SX328.jpg
A80486DX-25, S-Spec SX328
General Info
DesignerIntel
ManufacturerIntel
Model Numberi486DX-25
Part NumberA80486-25,
A80486DX-25,
MA80486DX-25,
MG80486DX-25,
MQ80486DX-25
S-SpecSX250, SX300, SX308, SX328, SX418, SX493, SX728
Q0143 (QS)
IntroductionJune, 1989 (launched)
ShopAmazon
General Specs
Family80486
Series486DX
Frequency25 MHz
Bus typeFSB
Bus speed25 MHz
Bus rate25 MT/s
Clock multiplier1
CPUID401, 402, 404
Microarchitecture
Microarchitecture80486
Core Name486DX
Process1 µm, 800 nm
Transistors1,200,000
TechnologyCMOS
Word Size32 bit
Cores1
Max Memory4 GiB
Multiprocessing
Max SMP1-Way (Uniprocessor)
Electrical
Power dissipation2.75 W
Vcore5 V ± 5%
OP Temperature0 °C – 85 °C

i486DX-25 was a fourth-generation x86 microprocessor introduced by Intel in 1989. This chip, which is based on the 80486 microarchitecture, operated at 25 MHz. This chip implemented the 80387 FPU on-die and incorporated System Management Mode (SMM).

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]

Retrieved from "https://en.wikichip.org/w/index.php?title=intel/80486/486dx-25&oldid=70359"
Facts about "i486DX-25 - Intel"
RDF feed
base frequency25 MHz (0.025 GHz, 25,000 kHz) +
bus rate25 MT/s (0.025 GT/s, 25,000 kT/s) +
bus speed25 MHz (0.025 GHz, 25,000 kHz) +
bus typeFSB +
clock multiplier1 +
core count1 +
core name486DX +
core voltage5 V (50 dV, 500 cV, 5,000 mV) +
core voltage tolerance5% +
cpuid401 +, 402 + and 404 +
designerIntel +
family80486 +
first launchedJune 1989 +
full page nameintel/80486/486dx-25 +
instance ofmicroprocessor +
l1$ description4-way set associative +
l1$ size8 KiB (8,192 B, 0.00781 MiB) +
ldateJune 1989 +
main imageFile:Intel i486 DX 25MHz SX328.jpg +
main image captionA80486DX-25, S-Spec SX328 +
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 numberi486DX-25 +
nameIntel i486DX-25 +
part numberA80486-25 +, A80486DX-25 +, MA80486DX-25 +, MG80486DX-25 + and MQ80486DX-25 +
power dissipation2.75 W (2,750 mW, 0.00369 hp, 0.00275 kW) +
process1,000 nm (1 μm, 0.001 mm) + and 800 nm (0.8 μm, 8.0e-4 mm) +
s-specSX250 +, SX300 +, SX308 +, SX328 +, SX418 +, SX493 + and SX728 +
s-spec (qs)Q0143 +
series486DX +
smp max ways1 +
technologyCMOS +
transistor count1,200,000 +
word size32 bit (4 octets, 8 nibbles) +