ML9092-02 Datasheet | LAPIS

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 - mon 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 m A : Can be used for LED driving - Port B output : 3 pins, output current = - 2 m A : Applies to ML9092-01/04 (capable of PWM output) - Port C output : 5 pin, output current = - 2 m A : Applies to ML9092-01 only - Port D output : 5 pins, output current...