Processor - Arduino Portenta H7 Product Reference Manual

Ref. Description
U1 STM32H747, Main processor
U2 QSPI Flash Memory
U3 USB HS PHY
U4 SDRAM
U5 Ethernet PHY
U6 MIPI to USB-C/DisplayPort converter
U7 Level Shifter
U8 I2C level shifter
U9 Wi-Fi/BT Module

4.2 Processor

Main processor is a dual core Cortex M7 running at up to 480 MHz and a Cortex M4 running at up to 240 MHz. The
two cores communicate with each other via a hardware assisted mailbox on which Arduino implements a Remote
Procedure Call mechanism that allows calling functions on the other processor seamlessly.
Both processors can share all the peripherals and resources and both can run the following applications:
Arduino sketches on top of mbed
Native mbed applications
MicroPython/Javascript interpreter
TensorFlow Lite
In all combinations of applications it is possible to invoke synchronous or asynchronous API calls. For example it is
possible to extend Python language with functions implemented as Arduino sketches that are executed in parallel
to other python functions by the opposite core.
Processor's various power modes allow quickly switching between high performance and very low power
configurations, optimizing power consumption whenever cores are idle.
Internal memory is composed of 2MB of flash with read while write support and 1MB of RAM partitioned as
follows:
192 Kbytes of Tightly Coupled Memory for time critical routines
64 Kbytes instruction
128 Kbytes of data
864 Kbytes of user SRAM
4 Kbytes of SRAM in Backup domain
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Ref.
U10
U11
U12, U13, U14
U16
J1, J2
ANT1
JANALOGJDIGITAL
J4
J5
Arduino® Portenta H7 / Rev. 01 - 25/11/2021
Arduino® Portenta H7
Description
Power Manager
Crypto Chip (NXP)
ESD protection
Crypto Chip (Microchip)
High Density Connectors
Antenna or U.FL Connector
MKR compatible headers
Battery connector
ESLOV connector