6 Hardware layout and configuration
The STM32H7Rx/7Sx Nucleo-144 board is designed around an STM32H7S3L8H6 microcontroller in a
TFBGA225 package.
Figure 4 shows the connections between the STM32 and its peripherals (STLINK-V3EC, flash memory, push-
button, LEDs, USB, ST Zio expansion connectors, and ST morpho headers). Figure 5 shows the location of these
features on the STM32H7Rx/7Sx Nucleo-144 board.
The mechanical dimensions of the board are shown in Figure 6.
Figure 4. Hardware block diagram
DT59252V1
STLINK-V3EC
Flash
memory
Ethernet
User
button
(B2)
Reset
button
(B1)
User USB
Type-C
®
GPIO
Octo-SPI
USB
ST morpho headers
ST morpho headers
ST Zio expansion connectors
ST Zio expansion connectors
ST-LINK USB
Type-C
®
RMII
STM32H7S3L8H6
GPIO
SWD/JTAG UART
SWD/JTAG UART
SWD/JTAGTRACE
LEDs
GPIO
MIPI20
TRACE
UM3276
Hardware layout and configuration
UM3276 - Rev 1
page 9/40
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