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