LC74730M Description
EN 4247A CMOS LSI LC74730M On-Screen Display Controller LSI Preliminary Overview The LC74730M is a CMOS LSI for on-screen display, a function that displays characters and patterns on a TV screen under microprocessor control. (The LC74730M supports the S-VCR format.) The characters displayed have an 8 × 8 dots structure and a dot interpolation function is provided. The LC74730M display 10 lines of 24 characters each.
LC74730M Key Features
- Screen format: 10 lines × 24 characters (up to 240 characters)
- Character format: 8 (horizontal) × 8 (vertical) (interpolation function provided)
- Character sizes: Three horizontal sizes and 3 vertical sizes
- Number of characters in font: 64 characters
- Display start position
- Horizontal: 64 positions
- Vertical: 64 positions
- Blinking: In character units
- Types of blinking: Two types with approximately 1.0 sec. and 0.5 sec
- Background color: Four background colors (in internal synchronization mode) (For the PAL-M format: 1 color; blue backgro