Oki Electric Industry ML9090-01-
The ML9090-01 and ML9090-02 are LCD drivers that contain internal RAM and a key scan function. They are best suited for car audio displays.GENERAL DESCRIPTION
They are best suited for car audio displays. Since 1-bit data of the display 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 single chip can implement a graphic display system of a maximum of 80 ¥ 16 dots (80 ¥ 8 dots for the ML9090-01, 80 ¥ 16 dots for the ML9090-02) and an arbitrator display system of 80 ¥ 2 dots. Since containing voltage multipliers, the ML9090-01 and ML9090-02 require no power supply circuit to drive the LCD. Since the internal 5 ¥ 5 scan circuit has eliminated the needs of key scanning by the CPU, the ports of the CPU can be efficiently used.FEATURES
● Logic voltage: VDD 2.7 to 5.5 V● LCD drive voltage: VBI 6 to 16 V (positive voltage)
● 80 segment outputs,10 common outputs for ML9090-01 and 18 common outputs for ML909002
● Built-in bit-mapped RAM (ML9090-01: 80 ¥ 10 = 800 bits, ML9090-02: 80 ¥ 18 = 1440 bits)
● 4-pin serial interface with CPU: CS, CP, DI/O, KREQ
● B...