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LC74794M Datasheet(PDF) 1 Page - Sanyo Semicon Device |
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LC74794M Datasheet(HTML) 1 Page - Sanyo Semicon Device |
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1 / 30 page  Overview The LC74794 and LC74794M are CMOS LSIs for on- screen display, a function that displays characters and patterns on a TV screen under microprocessor control. They feature a built-in PDC/VPS/UDT interface circuit. These LSIs support 12 × 18 dot characters and can display 12 lines by 24 characters of text. 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 — Background coloring: 8 colors (internal synchronization mode): 4fsc — Background coloring: 6 colors (internal synchronization mode): 2fsc — Blue background only: NTSC • Line background color — Can be set for 3 lines — Line background coloring: 8 colors (internal synchro- nization mode): 4fsc — Line background coloring: 6 colors (internal synchro- nization mode): 2fsc • External control input: 8-bit serial input format • On-chip sync separator and AFC circuits • PDC/VPS/UDT interface circuit • Composite video output in the PAL or NTSC format Package Dimensions unit: mm 3196-DIP30SD unit: mm 3216A-MFP30S CMOS LSI Ordering number : EN*5557 22897HA (OT)/No. 5557-1/30 Preliminary SANYO: DIP30SD [LC74794] SANYO: MFP30S [LC74794M] SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN On-Screen Display Controller LSI LC74794, 74794M |
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