Datasheet Summary
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OPTi
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82C283 386SX System Controller
Features
Overview
- Flexible DRAM banks configuration
- Supports 256K, 1M and 4M DRAM
- Block interleave mode operations
- Block interleaving at a block size of 512 bytes
- BIOS shadow RAM
- Shadow RAM for system, video and adapter BIOS
- Memory remapping
- Flexible multiplexed DRAM address
- Programmable AT bus clock
- Turbo switch
- 160-pin PQFP (Plastic Quad Flat Pack)
The 82C283 is a highly integrated, AT system logic VLSI chip for high-end 386SX/AT systems. It integrates a local memory controller (local memory is on-board memory), AT bus controller, and data bus controller into one chip. It is designed for...