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.

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)