Overview of LTDC controller and STM32 MCUs graphical portfolio
This section illustrates the LTDC controller benefits and summarizes the graphical portfolio of the STM32 microcontrollers.
This section illustrates the LTDC controller benefits and summarizes the graphical portfolio of the STM32 microcontrollers.
The LTDC on the STM32 microcontrollers is an on-chip LCD display controller that provides up to 24-bit parallel digital RGB signals to interface with various display panels. The LTDC can also drive other display technologies with parallel RGB interface like the AMOLED displays. The LTDC allows interfacing with low-cost display panels that do not embed neither a controller nor a graphic RAM.
Table 3 STM32 MCUs embedding an LTDC and their available graphic portfolio summarizes the STM32 MCUs embedding an LTDC and details the corresponding available graphic portfolio.
| Device | FLASH (bytes) | On ship SRAM (bytes) | Quad-SPI1 | Octo-SPI | Hexa-SPI | Max AHB/AXI frequency (MHz)2 | Max FMC SDRAM frequency (MHz) | Max Octo‑SPI frequency (MHz) | Max Hex‑SPI frequency (MHz) | Max pixel clock (MHz)3 | JPEG codec | DMA2D4 | MIPI-DSI host5 | Neo-Chrom (GPU2D) | Graphic libraries |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STM32F429/439 | Up to 2 M | 256 K | No | No | No | 180 | 90 | - | - | 83 | No | Yes | No | No | TouchGFX embedded wizard SEGGER STemWin |
| STM32F469/479 | Up to 2 M | 384 K | Yes | No | No | 180 | 90 | - | - | 83 | No | Yes | Yes | No | |
| STM32F7x6 | Up to 1 M | 320 K | Yes | No | No | 216 | 100 | - | - | 83 | No | Yes | No | No | |
| STM32F7x7 | Up to 2 M | 512 K | Yes | No | No | 216 | 100 | - | - | 83 | Yes | Yes | No | No | |
| STM32F7x8/9 | Up to 2 M | 512 K | Yes | No | No | 216 | 100 | - | - | 83 | Yes | Yes | Yes | No | |
| STM32H5Ex/Fx | Up to 4 M | 1.504 M | Yes | Yes | No | 250 | 100 | 125 | - | 90 | Yes | Yes | No | No | |
| STM32H7A3/B3 | Up to 2 M | 1.4 M | No | Yes | No | 280 | 110 | 140 | - | 140 | Yes | Yes | No | No | |
| STM32H7B0 | 128 K | 1.4 M | No | Yes | No | 280 | 110 | 140 | - | 140 | Yes | Yes | No | No | |
| STM32H742/43/45/53/55 | Up to 2 M | 1 M | Yes | No | No | 240 | 110 | - | - | 150 | Yes | Yes | No | No | |
| STM32H747/57 | Up to 2 M | 1 M | Yes | No | No | 240 | 110 | - | - | 150 | Yes | Yes | Yes | No | |
| STM32H750 | 128 K | 1 M | Yes | No | No | 240 | 110 | - | - | 150 | Yes | Yes | No | No | |
| STM32L4P/Q | Up to 1 M | 320 K | No | Yes | No | 120 | 606 | 92 | - | 83 | No | Yes | No | No | |
| STM32L4R/S | Up to 2 M | 640 K | No | Yes | No | 120 | 606 | 86 | - | 83 | No | Yes | Yes | No | |
| STM32H723/33/25/35 | Up to 1 M | 564 K | No | Yes | 275 | - | 95 | 150 | - | No | Yes | No | No | No | |
| STM32H730 | 128 K | 564 K | No | Yes | 275 | - | 95 | 150 | - | No | Yes | No | No | No | |
| STM32U5Fx/5Gx | Up to 4 M | Up to 3 M | No | Yes | Yes | 160 | 806 | 100 | 160 | 116 | Yes | Yes | No | Yes | |
| STM32U59x/5Ax | Up to 4 M | Up to 2.5 M | No | Yes | Yes | 160 | 806 | 100 | 160 | 116 | No | Yes | Yes | Yes | |
| STM32H7R7/S7 | 64 K | 640 K | Yes | Yes | Yes | 300 | 100 | 200 | 200 | 90 | Yes | Yes | No | Yes | |
| STM32N6xx | - | Up to 4.5 M | Yes | Yes | Yes | 400 | 166 | 200 | 200 | 86 | Yes | Yes | No | Yes |