GENERAL DESCRIPTION
The ADV476 (ADV®) is a pin compatible and software compatible RAM-DAC designed specifically for VGA and Personal System/2 color graphics.
The ADV476 is a complete analog output RAM-DAC on a single monolithic chip. The part contains a 256318 color lookup table, a pixel mask register as well as a triple 6-bit video D/A converter. The ADV476 is capable of simultaneously displaying up to 256 colors, from a total color palette of 262,144 addressable colors

FEATURES
   Personal System/2* and VGA* Compatible
   Plug-in Replacement for INMOS 171/176
   66 MHz Pipelined Operation
   Three 6-Bit D/A Converters
   256x18 Color Palette RAM
   RS-343A/RS-170 Compatible Outputs
   Blank on All Three Channels
   Standard MPU Interface
   Asynchronous Access to All Internal Registers
   +5 V CMOS Monolithic Construction
   Low Power Dissipation
   Standard 28-Pin, 0.6" DIP and 44-Pin PLCC

APPLICATIONS
   High Resolution Color Graphics
   CAE/CAD/CAM Applications
   Image Processing
   Instrumentation
   Desktop Publishing