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i486DX-20 - Intel
Template:mpu i486DX-20 was a fourth-generation x86 microprocessor introduced by Intel in 1989. This chip, which is based on the 80486 microarchitecture, operated at 20 MHz. This chip implemented the 80387 FPU on-die and incorporated System Management Mode (SMM).
Contents
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
- System Management Mode (SMM)
See also
Facts about "i486DX-20 - Intel"
base frequency | 20 MHz (0.02 GHz, 20,000 kHz) + |
bus rate | 20 MT/s (0.02 GT/s, 20,000 kT/s) + |
bus speed | 20 MHz (0.02 GHz, 20,000 kHz) + |
bus type | FSB + |
clock multiplier | 1 + |
core count | 1 + |
core name | 486DX + |
core voltage | 5 V (50 dV, 500 cV, 5,000 mV) + |
designer | Intel + |
family | 80486 + |
first announced | April 10, 1989 + |
first launched | June 1989 + |
full page name | intel/80486/486dx-20 + |
instance of | microprocessor + |
l1$ description | 4-way set associative + |
l1$ size | 8 KiB (8,192 B, 0.00781 MiB) + |
ldate | June 1989 + |
manufacturer | Intel + |
max cpu count | 1 + |
max memory | 4,096 MiB (4,194,304 KiB, 4,294,967,296 B, 4 GiB, 0.00391 TiB) + |
max operating temperature | 85 °C + |
microarchitecture | 80486 + |
min operating temperature | 0 °C + |
model number | i486DX-20 + |
name | Intel i486DX-20 + |
part number | A80486DX-20 + |
process | 1,000 nm (1 μm, 0.001 mm) + and 800 nm (0.8 μm, 8.0e-4 mm) + |
series | 486DX + |
smp max ways | 1 + |
technology | CMOS + |
transistor count | 1,200,000 + |
word size | 32 bit (4 octets, 8 nibbles) + |