Overview

Single Chip version of VL82C486 Chipset that does not use either VL82C144 or VL82C425 Chips

• Entry for the C486/C114 non-cached version here.
• Entry for the C486/C425/C114 cached version here.

The VL82C486 is a Single-Chip High Performance Controller for 486- and 486SX/487SX- based PC/AT systems. It supports 64MB RAM.

The VL82C486 includes the dual 82C37A DMA controllers, dual 82C59A programmable interrupt controllers, 82C54 programmable interval timer, 82284 clock and ready gener- ator, 82288 bus controller and the logic for address/data bus control, memory control, shutdown, refresh generation and refresh/DMA arbitration.