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Overview The LC74772V is a CMOS LSI that implements on-screen display for camcorders. It displays characters and patterns in a camcorder viewfinder under microprocessor control. The LC74772V displays a 12 × 18 dot font with 256 characters. Features • Screen format: 12 lines × 24 characters (up to 288 characters) • Number of characters displayed: Up to 288 characters • Character format: 12 (horizontal) × 18 (vertical) dots • Number of characters in font: 256 characters • Character sizes: Normal and double, specified in line units • Display start position — Horizontal: 64 positions — Vertical: 64 positions • Character reverse video function: Individual characters can be displayed in reverse video. • Types of blinking: Two types with periods of 1.0 and 0.5 seconds, specifiable on a per character basis. (Blinking has a 60% display on duty.) (Four divisors: 1/25, 1/30, 1/50, 1/60) • Outputs: R, G, B plus 2 output systems Or: 4 output systems (character data and blanking data: 4 outputs each) • External control input: 8-bit serial data input format.
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