UartTFT controller chip series for small size MCU panel

Product Description

LT268C/D are Uart TFT Controller ICs designed for small size MCU panels. Integrated with Cortex M4 32bit MCU core architecture, LT268C/D can be controlled by the host MCU through Uart interface, and deliver complex contents onto the LCD panel through simple commands. In addition to its high-performance M4 MCU, LT268C/D also provide graphics processing and acceleration functions. LT268C/D can improve the efficiency while displaying pictures/contents to the TFT panel and reduce the time it takes for the host MCU to process for the graphic display. LT268x supports TFT panels of 3.5" or less, and the display resolution should be within 800*480(VGA), with SPI, 8-bit or 16-bit parallel MCU interface.

LT268C/D have an embedded M4 core MCU, with a maximum speed of 150MHz, and contain 508Kbytes Flash, 256Kbytes SRAM. Other than the Uart port, LT268C/D also provide a QSPI Flash interface for accessing external SPI Flash that stores pictures, animations,and fonts. Levetop provides development tools (UI_Editor / UI_Emulator) to help developers better design their UI and contents. Developers may utilize UI_Editor and UI_Emulator to design their UI and verify it directly on the PC. LT268C/D provide more than 70  commands, including picture display, GIF animation, picture loop display, boot screen, progress bar, text string display, QR code, audio play and touch functions etc. In addition, LT268C/D provide multiple SCI (Uart) interfaces that can be connected to peripheral devices such as Bluetooth module and WiFi module. USB interface, SD card (SPI mode), analog input - AIN, PWM and INT interrupt interface are also available, and can be set as ordinary IO interface. These rich features make various applications possible.

The display function of LT268C/D is ideal for electronic products with small TFT-LCD panel. They can also be used to replace the original monochrome panel products and enhance the product grade, without increasing the processing burden of the original host MCU. LT268C/D's powerful display capabilities are ideal for electronic products with TFT-LCD panels, such as smart home appliances, automotive dashboards, motorcycle panels, industrial control applications, electronic instruments, medical equipment, testing equipment, hydropower meters, and smart audio player etc.

Product specifications
  • Built-in 32Bit Cortex M4 MCU, 508KB Flash, 256KB SRAM
  • SCI(Uart) x 3, QSPI x 1, SPI x 3
  • Support both resistive and capacitive touch panel
  • Built-in RTC and clock singal source
  • Built-in serial command functions
  • Voltage: 3.0V ~3.6V
  • Support LCD panels with 8/16 bits parallel or SPI interface
  • Support USB2.0, SD card, I2C interface
  • Support PWM/GPIO output
  • 5~11ch analog input & DAC audio input available
  • Development tools (UI_Editor & UI_Emulator) available
  • Support major real-time OS (RTOS)
  • Package: QFN68 / LQFP100
Product model
Development diagram
Product information electronic file

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