Overview
The LC74776/M is an on-screen display controller CMOS IC that displays characters and patterns on the TV screen under microprocessor control. This IC includes a built-in PDC/VPS/UDT interface circuit.

Functions
• Display format: 24 characters by 12 rows (Up to 288
   characters)
• Character format: 12 (horizontal) × 18 (vertical) dots
• Character sizes: Three sizes each in the horizontal and
   vertical directions
• Characters in font: 256 (Of the 256 characters, one is a
   space character (FE hexadecimal)
   and one is a transparent space
   character (FF hexadecimal))
• Initial display positions: 64 horizontal positions and 64
   vertical positions
• Blinking: Specifiable in character units
• Blinking types: Two periods supported:
   1.0 second and 0.5 second
• Blanking: Over the whole font (12 × 18 dots)
• Background color: 8 colors (internal synchronization
   mode): 4fSC and 2fSC
   Blue background only: NTSC
• Line background color: Three lines can be set up.
   8 line background colors (in
   internal synchronization mode):
   4fSC and 2fSC
• External control input: 8-bit serial input format
• On-chip sync separator circuit
• Video outputs: PAL and NTSC format composite video
   outputs
• On-chip PDC/VPS/UDT interface circuit supporting I2C
• Package: DIP30SD
                   MFP30S