Overview
Character and pattern display control IC for TV screen. A character dot configuration is 12 × 18. The IC has 64 internal character ROMs and displays up to 288 characters (24 characters × 12 lines) on a TV screen. It can be controlled by a microcontroller.

Function and Applications
• Screen Display Mode: 24 characters × 12 lines
• Number of display characters: 288 characters (max.)
• Display control ROM (line ROM):
   64 lines (line control: 24-character line)
• Display RAM:
   176 characters (used for specifying variable characters)
• Character configuration:
   12 (horizontal) × 18 (vertical) dots
• Number of character types: 64 types
• Character size:
   Horizontal direction: 4, Vertical direction: 4
• Display start position:
   Horizontal direction: 64, Vertical direction: 64
• Blinking mode: Character blinking
• Display ON/OFF mode:
   ON/OFF cycle; 1.0 second and 0.5 second. Duty cycle;
   25%, 50% and 75%
• Blanking mode: Entire font area (12 × 18 dots)
• Background colors: 4 (at internal SYNC. operation mode)
• External control input: Serial data input
• Synchronous signal: Selectable: Internal and External
• Internal SYNC. separation circuit available.
• Video output: NTSC-format composite output
• Superimpose function:
   Superimposes character output on composite video
   output