ST NUCLEO-H7A3ZI-Q User Manual

Hardware layout and configuration UM2408
36/51 UM2408 Rev 2
Figure 18. NUCLEO-H7A3ZI-Q extension connectors
6.16 ST Zio connectors
CN7, CN8, CN9, and CN10 are female connectors on the top side and male connectors on
the bottom side. They include support for ARDUINO
®
Uno V3. Most shields designed for
ARDUINO
®
Uno V3 can fit the STM32H7 Nucleo-144 board.
To cope with ARDUINO
®
Uno V3, apply the following modifications:
• SB39 and SB62 must be ON
• SB40 and SB69 must be OFF to connect I
2
C on A4 (Pin 5) and A5 (Pin 6 of CN9).
Caution:1 The I/Os of STM32H7 microcontroller are 3.3 V compatible instead of 5 V for ARDUINO
®
Uno V3.
Caution:2 R40 must be removed before implementing ARDUINO
®
shield with V
REF+
power being
provided on CN7 pin 6. Refer to Table 16: Solder bridges for details on R40.
Table 17 shows the pin assignment for each STM32H7 microcontroller on the ST Zio
connectors.
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ST NUCLEO-H7A3ZI-Q Specifications

General

Brand	ST
Model	NUCLEO-H7A3ZI-Q
Category	Motherboard
Language	English