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ML9092-02 Datasheet(PDF) 1 Page - OKI electronic componets |
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ML9092-02 Datasheet(HTML) 1 Page - OKI electronic componets |
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1 / 66 page  OKI Semiconductor FEDL9092-01 Issue Date: Nov. 4, 2003 ML9092-01/02/03/04 LCD Driver with Key Scanner and RAM 1/66 GENERAL DESCRIPTION The ML9092-01/02/03/04 are LCD drivers that have internal RAM and a key scan function. They are best suited for car audio displays. Since 1-bit data of the display data RAM corresponds to the light-on or light-off of 1-dot of the LCD panel (a bit map system), a flexible display is possible. A graphic display system of a maximum of 60 × 10 dots (56 × 10 dots for ML9092-01, 60 × 10 dots for ML9092-02/03/04). can be implemented. The ML9092-01/02 do not require any power supply circuit to drive the LCD, because they have internal voltage doublers. (If a large-sized panel is driven, use the ML9092-03, to which the LCD driving voltage is supplied externally.) The internal key scan circuit (5 × 5 key scanning for ML9092-01/04, 6 × 4 key scanning for ML9092-02/03) has eliminated the needs of key scanning by the CPU, thereby enabling the efficient use of the CPU ports. FEATURES • Logic voltage : 4.5 to 5.5 V • LCD drive voltage : 4.5 to 16.5 V (positive voltage) • Segment output : 56 outputs for ML9092-01; 60 outputs for ML9092-02/03/04 • Common output : 10 outputs • Built-in bit-mapped RAM : 60 × 10 = 600 bits (for ML9092-01 only: 56 × 10 = 560 bits for the RAM display area) • 4-pin serial interface with CPU: CS, CP, DI/O, KREQ • Built-in LCD drive bias resistors • Built-in voltage doubler circuit • For the ML9092-01/04, the built-in 5 × 5 key scanner makes it possible to read the status of 25 key switches and 1-channel rotary encoder. In addition, the ML9092-01/04 have an 8-bit, 3-channlel PWM circuit built in. For the ML9092-02/03, the built-in 6 × 4 key scanner makes it possible to read the status of 24 key switches and 1-channel rotary encoder. • Port A output : 1 pin, output current = –15 mA : Can be used for LED driving • Port B output : 3 pins, output current = –2 mA : Applies to ML9092-01/04 (capable of PWM output) • Port C output : 5 pin, output current = –2 mA : Applies to ML9092-01 only • Port D output : 5 pins, output current = –2 mA : Applies to ML9092-01 only • Temperature range : –40 to +85 °C • Package: 100-pin plastic TQFP (TQFP100-P-1414-0.50-K) (Product name: ML9092-01TB, ML9092-02TB, ML9092-03TB, ML9092-04TB) |
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