Datasheet4U Logo Datasheet4U.com

82C283 - 386SX System Controller

Description

Pin No.

43 22 104 18 Signal Type I I/O O I Signal Description CLK2 input from oscillator.

CLK2 output to 386SX and 387SX.

Features

  • 2.0 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 f.

📥 Download Datasheet

Datasheet Details

Part number 82C283
Manufacturer Opti
File Size 242.25 KB
Description 386SX System Controller
Datasheet download datasheet 82C283 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
82C28 VOLTAGE DETECTORS Unisonic Technologies
82C284 Clock Generator and Ready Interface for 80C286 Processors Intersil Corporation
82C288 BUS CONTROLLER Intel Corporation
82C288 Bus Controller AMD
82C20 VOLTAGE DETECTORS Unisonic Technologies

Other Datasheets by Opti

Part Number Description
82C281 AT System Logic
82C206 Integrated Peripheral Controller
82C465MV Single Chip Mixed Voltage Notebook Solution
82C465MVA Single Chip Mixed Voltage Notebook Solution
82C465MVB Single Chip Mixed Voltage Notebook Solution

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
www.DataSheet4U.com OPTi ® 82C283 386SX System Controller 1.0 Features 2.0 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 systems running at 16MHz, 20MHz, 25MHz, and 33MHz*.
Published: |