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    ISA bus controller for 80386

    Abstract: 80486 AT40957-33 AT40958-33 AT40959-33 bios chip manufacturer 8259A-compatible Cache Controller isa bus master 80386
    Text: AT40957/8/9 Features • Three-Chip EISA/ISA Compatible Chip Set for 80386/80486 Systems Operating up to 66 MHz • One 160-Pin and Two 184-Pin Quad Flatpacks AT40957 integrated System Peripheral AT40958 Bus Controller and Data Buffer AT40959 DRAM and Cache Controller


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    AT40957/8/9 160-Pin 184-Pin AT40957 AT40958 AT40959 DD0575D AT40957-33 ISA bus controller for 80386 80486 AT40958-33 AT40959-33 bios chip manufacturer 8259A-compatible Cache Controller isa bus master 80386 PDF