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ADV476

Features: ·Personal System/2* and VGA* Compatible·Plug-in Replacement for INMOS 171/176·66 MHz Pipelined Operation·Three 6-Bit D/A Converters·256318 Color Palette RAM·RS-343A/RS-170 Compatible Outputs·Blank on All Three Channels··Standard MPU Interface·Asynchronous Access to All Internal Registers...

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SeekIC No. : 004278064 Detail

ADV476: Features: ·Personal System/2* and VGA* Compatible·Plug-in Replacement for INMOS 171/176·66 MHz Pipelined Operation·Three 6-Bit D/A Converters·256318 Color Palette RAM·RS-343A/RS-170 Compatible Outpu...

ADV476 Data Sheet

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Part Number:
ADV476
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

·Personal System/2* and VGA* Compatible
·Plug-in Replacement for INMOS 171/176
·66 MHz Pipelined Operation
·Three 6-Bit D/A Converters
·256318 Color Palette RAM
·RS-343A/RS-170 Compatible Outputs
·Blank on All Three Channels
··Standard MPU Interface
·Asynchronous Access to All Internal Registers
·15 V CMOS Monolithic Construction
·Low Power Dissipation
·Standard 28-Pin, 0.6" DIP and 44-Pin PLCC


Application

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


Pinout

Connection Diagram


Specifications

VAA to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     +7 V
Voltage on Any Digital Pin . . . . .        GND 0.5 V to VAA +0.5 V
Ambient Operating Temperature (TA) . . . . . . . .   0°C to +70°C
Storage Temperature (TS) . . . . . . . . . . . . . .  65°C to +150°C
Junction Temperature (TJ) . . . . . . . . . . . . . . . . . . . .     +150°C
Soldering Temperature (10 secs) . . . . . . . . . . . . . . . . . . 300°C
Vapor Phase Soldering (1 minute) . . . . . . . . . . . . . . . . . 220°C
IOR, IOB, IOG, ISYNC to GND2 . . . . . . . . . . . . . .       0 V to VAA


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.

The on-chip asynchronous MPU bus allows access to the color lookup table without affecting the input video data via the pixel port. The pixel read mask register provides a convenient way of altering the displayed colors without updating the color lookup table. The ADV476 is capable of generating RGB video output signals which are compatible with RS-343A and RS-170 video standards, without requiring external buffering.




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