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MB90091A - On-Screen Display Controller

General Description

The MB90091A is the multisync, on-screen display controller that supports a variety of TV systems such as NTSC, PAL, double-scan NTSC, double-scan PAL, 1250HDTV, and 1125HDTV as well as personal computer monitor display systems such as VGA and XGA.

Key Features

  • Screen display capacity.
  • Font size.
  • Font types : Up to 24 characters x 12 lines (288 characters) : 24 x 32 dots (horizontal x vertical) : 512 different characters (character codes 000H to 1FFH) 8 different sprite characters (character codes 1F8H to 1FFH) (Internal or external ROM selectable) : Trimmed display (pattern background 0, 1, or none) Character background (settable for each character) Shaded background (settable for each character) : Capable of displaying one.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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FUJITSU SEMICONDUCTOR DATA SHEET DS04-28823-2E ASSP Image Control CMOS Intelligent On-screen Display Controller (IOSDC) MB90091A s DESCRIPTION The MB90091A is the multisync, on-screen display controller that supports a variety of TV systems such as NTSC, PAL, double-scan NTSC, double-scan PAL, 1250HDTV, and 1125HDTV as well as personal computer monitor display systems such as VGA and XGA. The MB90091A contains display memory (VRAM) and character font ROM, allowing characters to be displayed with few external devices. The device also contains command table ROM storing display command data, minimizing the load on the microcomputer. The on-screen display configuration is up to 24 characters × 12 lines, with each character consisting of 24 × 32 dots.