The Fujitsu MB90089 is a CMOS On-screen Display Controller (OSDC) designed to display alphanumeric characters and figures on TV screens. It features a built-in character generator ROM capable of storing 256 characters, including special characters like Kanji and Kana, making it suitable for Japanese displays in addition to standard alphanumeric text.
The device includes an on-chip video signal generator for NTSC and PAL systems, allowing it to synthesize video signals internally or superimpose characters onto external video inputs. It provides three video outputs (composite, Y/C separate, and RGB digital) and supports various character sizes and background patterns.
| Display Format | 24 rows x 12 lines (Max. 288 characters/screen) |
|---|---|
| Character Matrix | 12 x 18-dot |
| Character ROM Capacity | 256 characters |
| Operating Voltage | +5 V |
| Operating Temperature | 45°C to +85°C |
| Package Type | 28-pin plastic SOP |
| Video Systems | NTSC and PAL |
The device supports both NTSC and PAL TV systems.
The maximum display capacity is 288 characters per screen.
Yes, it can store special characters including Kanji and Kana.