controller driver

The TL1769 is a 262, 144-color one-chip controller driver LSI for a TFT liquid crystal display with resolution of 176 RGB*240 dots, comprising a 528-channel source driver, RAM for graphics data of 176 RGB*240 dots at maximum, a gate driver and a power supply circuit.The TL1769 supports high-speed parallel interfaces(for displaying a moving picture) to 8-, 9-, 18bit ports and a function to write RAM data in high speed for transferring data efficiently and rewriting RAM graphics data in high speed. In addition, the TL1769 incorporates 6-, 16-, 18bit RGB interface (VSYNC, HSYNC, DOTCLK, ENABLE, and DB17-0) and a VSYNC interface (system interface + VSYNC) for displaying a moving picture, which, with use of window address function, enable the TL1769 to display a moving picture easily at a position specificed by a user and still pictures in other areas on the screen simultaneously. Since this combination allows transferring only moving picture data while retaining still picture data in the internal RAM intact, data transfer can be minimized and power consumption by the entire system is reduced.The TL1769 can operate with low I/O interface power supply up to 1.65V, with an incorporated voltage follower circuit to generate voltage levels for driving LCD. The TL1769 also supports a function to display in 8 colors and a standby mode, allowing for precise power control by software. These features make the TL1769 an ideal LCD driver for medium or small sized portable products supporting WWW browsers such as digital cellular phones or small PDAs, where long battery life is a measure concern.