Description:

Overview

This is the same as the VL82CPCAT-16QC/-20QC chipset, except it includes the VL82C205 Page Mode Access Controller.

Versions:

Parts with the suffix -16QC or 16QI operate and 16MHz. Parts with the suffix -20QC or 20QI operate and 20MHz. All parts labeled QC operate between 32° and 158°F. QC may be replaced with QI, indicating an industrial part operating between -40° to 185°F

Note that this chipset can support a 386SX, a complete design schematic is given in the datasheet.

• 100% PC/AT-Compatible
• Page-mode 0.6 ws with 100ns DRAM
• Shadow RAM Feature
• 8 MHz Backplane I/O operation
• On-board EMS 4.0 Memory
• Max 8MB RAM
• Supports up to 20MHz system clock
• Supports 16 MHz 80286 operation with 100 ns DRAMs
• Replaces 75 components in IBM PC/AT-compatible systems.
  • VL82C100, 19 logic devices
  • VL82C201, 36 integrated circuits
  • VL82C202, 20 integrated circuits
  • VL82C203, several buffers, latches and other logic devices
  • VL82C204, several buffers, latches and other logic devices
• VL82C201 Sink 24 mA on slot driver outputs
• VL82C202 Completely performs memory control function in IBM PC/AT-compatible systems
• VL82C203 Completely performs address buffer function in IBM PC/AT-compatible systems
• VL82C204 Completely performs data buffer function in IBM PC/AT-compatible systems
• VL82C205 has a 13 chip PC/AT implementation (non-memory chips) and a 68-pin PLCC package
• Seven DMA channels
• 14 external interrupt requests
• Three timer/counter channels
• Devices are available as "cores" for user-specific designs
• Designed in CMOS for low power consumption

Documented parts

• VLSI VL82C100 (PC/AT-Compatible Peripheral Controller)
• VLSI VL82C201 (PC/AT-Compatible System Controller)
• VLSI VL82C202 (PC/AT-Compatible Memory Controller)
• VLSI VL82C203 (PC/AT-Compatible Address Buffer)
• VLSI VL82C204 (PC/AT-Compatible Data Buffer)
• VLSI VL82C205 (PC/AT-Compatible Page Mode Access Controller)