LT7381 is a high peformance and cost-effective TFT LCD graphics controller IC. It can receive the display data sent by the host MCU, and then transmit the data onto the TFT LCD. LT7381 also provides graphics processing, PIP (Picture-in-Picture), and geometric drawing functions. LT7381 supports 16/18/24bits RGB panels with various resolutions ranging from 320x240 (QVGA) to 1280x1024 (SVGA).
LT7381 supports a variety of MCU interface, including SPI, I2C serial port, and 8-bit/16-bit parallel interface. In order to achieve multi-layers high resolution display effect, it has a built-in 32Mb Display RAM, which can support assorted color depths from 1bit per pixel (2 gray shades) to 24bits per pixel (16M color), and alleviate the processing burden on MCU while displaying animation. With built-in geometric drawing engine, LT7381 supports drawing points, lines, curves, ellipse, triangle, rectangle, rounded rectangle, and other functions. In addition, LT7381 has an embedded hardware graphics acceleration engine (BTE), which provides command-type graphic operations such as screen rotation, flipping, mirroring, PIP and graphics blending, and transparent display. These functions can greatly enhance the display performance, and ease the processing burden on the MCU. Furthermore, users can use SPI interface to connect with MCU, and save the I/O ports of the MCU for other purposes.
