LC74798M

Ordering number : EN5833 CMOS IC LC74798, 74798M On-Screen Display Controller IC Overview The LC74798 and LC74798M are on-screen display controller CMOS ICs that display characters and patterns on the TV screen under microprocessor control. These ICs include a built-in PDC/VPS/UDT interface circuit. Package Dimensions unit: mm 3193-DIP30SD [LC74798] Features 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: 128 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 — 6 colors (internal synchronization mode): 2fSC — Blue background only: NTSC Line background color — Three lines can be set up. — 8 line background colors (in internal synchronization mode): 4fSC — 6 line background colors (in internal synchronization mode): 2fSC External control input: 8-bit serial input format On-chip sync separator and AFC circuits On-chip PDC/VPS/UDT interface circuit Video outputs: PAL and NTSC format composite video outputs Package: DIP30SD (400 mil) MFP30S (375 mil) SANYO: DIP30SD unit: mm 3216-MFP30S [LC74798M] SANYO: MFP30S SANYO Electric Co.,Ltd. Semico...