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HD6845R - CRT Controller

Datasheet Summary

Features

  • S.
  • Number of Displayed Characters on the Screen, Vertical Dot Format of One Character, HOrizontal and Vertical Sync Signal, Display Timing Signal are Programmable.
  • 3.7 MHz High Speed Display Operation.
  • Line Buffer-less Refreshing.
  • 14-bit Refresh Memory Address Output (16k Words max. Access).
  • Programmabl.

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Datasheet preview – HD6845R

Datasheet Details

Part number HD6845R
Manufacturer Hitachi Semiconductor
File Size 2.13 MB
Description CRT Controller
Datasheet download datasheet HD6845R Datasheet
Additional preview pages of the HD6845R datasheet.

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Full PDF Text Transcription

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HD6845R/HD6845S CRT Controller (CRTC) The CRTC is a LSI controller which is designed to provide an interface for microcomputers to raster scan type CRT displays. The CRTC belongs to the HD6800 LSI Family and has full compatibility with MPU in both data lines and control lines. Its primary function is to generate timing signal which is necessary for raster scan type CRT display according to the specification programmed by MPU. The CRTC is also designed as a programmable controller, so applicable to wide-range CRT display from small low-functioning character display up to raster type full graphic display as well as large high-functioning limited graphic display.
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