Semiconductor & Computer Engineering
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i486DX4-75 - Intel
Template:mpu i486DX4-75 was a fourth-generation x86 microprocessor introduced by Intel in 1994. This chip, which is based on the 80486 microarchitecture, had a clock multiplier of x2, x2.5, and x3 with a max operating frequency of 75 MHz, three times the bus frequency. Like the original i486DX, this chip implemented the 80387 FPU on-die and incorporated System Management Mode (SMM). The DX4 series had twice as much cache space as the older processors.
Contents
Cache
- Main article: 80486 § Cache
The i486dx4-100 was offered with two cache policies. Models that came with a write-back cache were marked by an "&EW" identifier. Models that came with a write-through policy were marked by "&E".
| Cache Info [Edit Values] | ||
| L1$ | 16 KiB 16,384 B 0.0156 MiB |
1x16 KiB 4-way set associative (unified, write-through/write-back policy) |
Graphics
This chip had no integrated graphics processing unit.
Features
- System Management Mode (SMM)
Gallery
FC80486DX4-75, S-Spec SX883
See also
Facts about "i486DX4-75 - Intel"
| base frequency | 75 MHz (0.075 GHz, 75,000 kHz) + |
| bus rate | 25 MT/s (0.025 GT/s, 25,000 kT/s) + |
| bus speed | 25 MHz (0.025 GHz, 25,000 kHz) + |
| bus type | FSB + |
| clock multiplier | 3 + |
| core count | 1 + |
| core name | 486DX4 + |
| core voltage | 3.3 V (33 dV, 330 cV, 3,300 mV) + |
| core voltage tolerance | 0.3 V + |
| cpuid | 480 + |
| designer | Intel + |
| family | 80486 + |
| first launched | March 7, 1994 + |
| full page name | intel/80486/486dx4-75 + |
| instance of | microprocessor + |
| l1$ description | 4-way set associative + |
| l1$ size | 16 KiB (16,384 B, 0.0156 MiB) + |
| ldate | March 7, 1994 + |
| main image | .png) + |
| main image caption | FC80486DX4, S-Spec SK052 + |
| 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 | i486DX4-75 + |
| name | Intel i486DX4-75 + |
| part number | A80486DX4-75 +, MA80486DX4-75 +, MQ80486DX4-75 +, TQ80486DX475 +, FC80486DX4-75 + and FC80486DX4WB75 + |
| power dissipation | 2.72 W (2,720 mW, 0.00365 hp, 0.00272 kW) + |
| process | 600 nm (0.6 μm, 6.0e-4 mm) + |
| s-spec | SK047 +, SK087 +, SK102 +, SX871 +, SX884 +, SK052 +, SK100 +, SX870 + and SX883 + |
| series | 486DX4 + |
| smp max ways | 1 + |
| technology | CMOS + |
| transistor count | 1,600,000 + |
| word size | 32 bit (4 octets, 8 nibbles) + |
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