H750XB-M.2-Core

STM32H750/743 BGA240+25 core board, four-layer board
: 1. Uses two M.2 E Key gold fingers to bring out the I/O, size 45x30mm;
2. Onboard IS42S32800G 32bit wide 32M SDRAM, not equal in length, tested with the "Hardcore Brother" speed test code: write 444MB/s, read 219MB/s;
3. Onboard QSPI Flash and SPI Flash;
4. Onboard two LEDs;
5. Onboard SDIO interface SD card slot;
6. LTDC pins are brought out in sequence for easy expansion of RGB screen;
 
Updated to V120 version 20240419:
1. SDRAM has been partially equalized, with a maximum line length difference of 16mm, compared to 25mm in previous versions;
2. VDDLDO power supply changed to TPS82130 DCDC to reduce heat generation;
3. Screw mounting holes changed to 3mm mounting holes;
 
May 14, 2024 Update (V130):
1. 3.3V main power supply uses TPS82130 DC-DC;
2. 1.8V VDDLDO power supply changed to LDO;
July 21, 2024 Update (Version 1.4.0)
: 1. Removed 1.8V LDO, changed to DC-DC direct supply to Vcore; September 10
, 2024 Update (Version 1.4.1) :
1. PCB changed to 6 layers;
2. SDRAM is made with equal length processing;
PCB mounting notes: Board thickness 0.8mm! Board thickness 0.8mm! Board thickness 0.8mm!