LC74751 Description
EN 5396 CMOS LSI LC74751 On-Screen Display LSI Preliminary Overview The LC74751 is a CMOS LSI that supports on-screen display of characters and patterns on a TV screen under the control of a microcontroller. The LC74751 includes an on-chip character ROM that provides 128 characters in a 12 × 18 dot format. This IC supports display of up to 12 lines of 24 characters each for a maximum of 288 characters.
LC74751 Key Features
- Display format: 24 characters by 12 rows
- Characters displayed: Up to 288 characters
- Display control ROM (line ROM): ROM for 64 lines (Control in line units: lines consisting of 24 characters)
- Display RAM: 176 characters (Used for the specification of user-defined characters.)
- Character format: 12 (horizontal) × 18 (vertical) dots
- Characters in font: 128
- Character sizes: Four sizes each in the horizontal and vertical directions
- Initial display positions: 64 horizontal positions and 64 vertical positions
- Blinking: Specifiable in character units
- Blinking types