112 X 80-dot Graphics Lcd Controller/driver - Hitachi Semiconductor

The HD66740 112-by-80 dot-matrix graphics LCD Controller and driver LSI, Displays graphics such as text, kanji and pictograms. It CAN be configured to drive a dot-matrix liquid crystal under the control of the Microprocessor connected via the clock-synchronized serial or 4/8-bit bus. The HD66740 has a smooth vertical scroll Display and a double-height Display for the remaining bit map areas. It fixed-displays a part of the graphics icons so that the user CAN easily see a variety of information. The HD66740 has various functions to reduce the power consumption of an LCD system such as low- voltage operation of 1.8 V min., a booster to generate maximum five-times LCD drive voltage from the supplied voltage, and voltage-followers to decrease the direct current flow in the LCD drive bleeder- resistors. Combining these hardware functions with software functions such as standby and sleep modes allows fine power control. The HD66740 is suitable for any portable battery-driven product requiring long-term driving capabilities such as cellular phones, pagers, or electronic wallets. By Renesas Technology