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HD6845S - CRT Controller

Download the HD6845S datasheet PDF (HD6845R included). The manufacturer datasheet provides complete specifications, pinout details, electrical characteristics, and typical applications for crt controller.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (HD6845R-HitachiSemiconductor.pdf) that lists specifications for multiple related part numbers.

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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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