i386
Microprocessor
The Intel 386, originally released as 80386 and later renamed i386, is a 32-bit microprocessor designed by Intel. The first pre-production samples of the 386 were released to select developers in 1985, while mass production commenced in 1986. Wikipedia
Address width: 32 bits (386SX: 24 bits)
Co-processor: 386DX: Intel 80387; 386SX: Intel 80387SX
Discontinued: September 28, 2007
Instruction set: x86-16, IA-32
Model(s): i386DX; i386SX; i386SL; i376; i386EX(T/TB/C); i386CXSA; i386SXSA/i386SXTA; i386CXSB; RapidCAD
Package(s): 132-pin PGA, 132-pin PQFP; SX variant: 88-pin PGA, 100-pin BQFP with 0.635 mm pitch
People also ask
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Nov 1, 2013 · Intel introduced the 386SX CPU as a bridge between the generation machines built around its aging 16-bit 286 chips and the more full-featured, ...
Apr 11, 2021 · A shared 286/386Sx socket might have cost Intel sales. The 386SX was $200 and the extra memory to take advantage of the V86 mode was another ...
Jan 5, 2024 · The 386SX has a 16b wide memory bus. 30p SIMMs are 8b wide. So you need to install them in pairs. As stated, the address bus was 24b wide, ...
That's why the 386SX had a pretty short shelf life. Once AMD had 386 chips to sell, Intel cut prices on 486s. But for a couple of years it served a purpose.
Aug 19, 2021 · The 386SX also has a 24-bit address bus, the same as a 286 - which limited it to 16MB of RAM, but that was a huge amount of RAM at the time.
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