Description:

Overview

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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.

Documented parts

• VLSI VL82C114 (Combination I/O)
• VLSI VL82C425 (486 Cache Controller)
• VLSI VL82C486 (SC486 Controller)