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Introduction
The STM32N6 Nucleo-144 board based on the MB1940 reference board (order code NUCLEO-N657X0-Q) provides an
affordable and flexible way for users to try out new concepts and build prototypes by choosing from the various combinations of
performance and power‑consumption features provided by the STM32N6 microcontroller.
The STM32 Nucleo-144 board offers easy means to expand the functionality of the Nucleo open development platform with a
wide choice of specialized shields through several expansion connectors:
®
•
ARDUINO
Uno V3 connector
•
ST morpho headers providing access to the microcontroller's I/O pins
The STM32N6 Nucleo-144 board does not require any separate probe as it integrates the STLINK-V3EC debugger/
programmer.
The STM32N6 Nucleo-144 board comes with the STM32 comprehensive free software libraries and examples available with the
STM32CubeN6
MCU Package.
Figure 1.
NUCLEO-N657X0-Q top view
Pictures are not contractual.
UM3417 - Rev 1 - January 2025
For further information contact your local STMicroelectronics sales office.
STM32N6 Nucleo-144 board (MB1940)
Figure 2.
NUCLEO-N657X0-Q bottom view
UM3417
User manual
www.st.com
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Summary of Contents for ST STM32N6 Nucleo-144
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Page 1: Figure 1. Nucleo-N657X0-Q Top View
ST morpho headers providing access to the microcontroller's I/O pins The STM32N6 Nucleo-144 board does not require any separate probe as it integrates the STLINK-V3EC debugger/ programmer. The STM32N6 Nucleo-144 board comes with the STM32 comprehensive free software libraries and examples available with the STM32CubeN6 MCU Package. -
Page 2: Features
® – ARDUINO Uno V3 connector – ST morpho extension pin headers for full access to most of STM32 I/Os • Flexible power-supply options: ST-LINK USB V , USB connector, or external sources • On-board STLINK-V3EC debugger/programmer with USB re-enumeration capability: mass storage, Virtual COM port, and debug port •... -
Page 3: Ordering Information
UM3417 Ordering information Ordering information To order the STM32N6 Nucleo-144 board, refer to Table 1. Additional information is available from the datasheet and reference manual of the target STM32. Table 1. List of available products Order code Board reference Target STM32... -
Page 4: Development Environment
The latest versions of the demonstration source code and associated documentation can be downloaded from www.st.com. CAD resources All board design resources, including schematics, CAD databases, manufacturing files, and the bill of materials, are available from the NUCLEO-N657X0-Q product page at www.st.com. UM3417 - Rev 1 page 4/48... -
Page 5: Conventions
UM3417 Conventions Conventions Table 3 provides the conventions used for the ON and OFF settings in the present document. Table 3. ON/OFF convention Convention Definition Jumper JPx ON Jumper fitted Jumper JPx OFF Jumper not fitted Jumper JPx [1-2] Jumper fitted between pin 1 and pin 2 Solder bridge SBx ON SBx connections closed by 0 Ω... -
Page 6: Safety Recommendations
UM3417 Safety recommendations Safety recommendations Targeted audience This product targets users with at least basic electronics or embedded software development knowledge such as engineers, technicians, or students. This board is not a toy and is not suited for use by children. Handling the board This product contains a bare printed circuit board and like all products of this type, the user must be careful about the following points:... -
Page 7: Quick Start
® 3. Connect the STM32N6 Nucleo-144 board to a PC with a USB cable (USB Type-A or USB Type-C ® USB Type-C ) through the USB connector (CN10) to power the board. 4. The 5V_PWR (LD1), COM (LD9), and PWR status (LD4) LEDs light up and the red LED (LD5) blinks. -
Page 8: Default Board Configuration
UM3417 Quick start Default board configuration By default, the STM32N6 Nucleo-144 board is configured with ST-LINK power. The default jumper configuration and voltage setting are shown in Table Table 4. Default jumper configuration Jumper Definition Default position Comment 5V power selection (user USB... -
Page 9: Hardware Layout And Configuration
UM3417 Hardware layout and configuration Hardware layout and configuration The STM32N6 Nucleo-144 board is designed around the STM32N657X0H3Q microcontroller in a VFBGA264 package. Figure 4 shows the connections between the STM32 and its peripherals (STLINK-V3EC, flash memory, push- buttons, LEDs, USB, ST morpho headers). -
Page 10: Figure 5. Nucleo-N657X0-Q Board Top Layout
UM3417 Hardware layout and configuration Figure 5. NUCLEO-N657X0-Q board top layout ST-LINK power status LED (LD4) OFF: Unused Green: OK Orange: Short Red: Overcurrent Blinking red: Error ST-LINK USB Type-C connector (CN10) ® ST-LINK COM LED (LD9) Red: Initialization Green: Communication initialization... -
Page 11: Figure 6. Nucleo-N657X0-Q Board Bottom Layout
UM3417 Hardware layout and configuration Figure 6. NUCLEO-N657X0-Q board bottom layout UM3417 - Rev 1 page 11/48... -
Page 12: Mechanical Drawing
UM3417 Hardware layout and configuration Mechanical drawing Figure 7. Board mechanical drawing (in millimeters) 70.00 mm UM3417 - Rev 1 page 12/48... -
Page 13: Embedded Stlink-V3Ec
In case the STM32N6 Nucleo-144 board is connected to the PC before the driver is installed, some board interfaces might be declared as Unknown in the PC device manager. In this case, the user must install the dedicated driver files, and update the driver of the connected device from the device manager as shown in... -
Page 14: Using An External Debug Tool To Program And Debug The On-Board Stm32
Using an external debug tool to program and debug the on-board STM32 The STM32N6 Nucleo-144 board supports an external debug tool through the CN1 connector for SWD/JTAG and trace debugging. Keep the embedded STLINK-V3EC running. Power on the STLINK-V3EC at first until the COM LED turns red. -
Page 15: Power Supply
5 V power source mode, if not malfunction can occur. For detailed configuration, refer to the relevant function description and technical application notes. Figure 9. Power supply architecture 3.3V/up to 300 mA ST-LINK Inductor VDD1V8 VDDA1V8PMU VDDA1V8... -
Page 16: External Power Supply Input
If the host can provide the required power, the enumeration finishes with a SetConfiguration command. Then, the power eFuse (U6) is switched ON and the green LED (LD1) is turned ON, thus the Nucleo board with its shield can consume 500 mA or more current determined by ST-LINK. UM3417 - Rev 1... -
Page 17: Figure 10. Cn9 [1-2]: 5V_Stlk Power Source
UM3417 Hardware layout and configuration 5V_STLK configuration: The CN9 jumper is set on [1-2] as shown in Figure Figure 10. CN9 [1-2]: 5V_STLK power source ST-LINK USB Type-C ® (CN10) 5V_PWR LED (LD1) CN9 [1-2] UM3417 - Rev 1 page 17/48... -
Page 18: Figure 11. Cn9 [5-6]: 5V_Vin Power Source
CN5 pin 8 named VIN on the connector silkscreen or from the ST morpho connector CN3 pin 24. In this case, the CN9 jumper must be on pin [5-6] to select the 5V_VIN power source. In that case, the DC power comes from the power supply through the ®... -
Page 19: Figure 12. Cn9 [3-4]: 5V_Usb_Snk Power Source
ON. The power to the Nucleo board can be from CN8. 5V_USB_SNK configuration: The CN9 jumper must be on [3-4] as shown in Figure Figure 12. CN9 [3-4]: 5V_USB_SNK power source CN9 [3-4] ST morpho (CN3 pin 24) ARDUINO ® (CN5 pin 8) 5V LED... -
Page 20: Programing/Debugging When The Power Supply Is Not From Stlink-V3Ec (5V_Stlk)
UM3417 Hardware layout and configuration 7.4.2 Programing/debugging when the power supply is not from STLINK-V3EC (5V_STLK) VIN or 5V_UCPD can be used as an external power supply in case the current consumption of the Nucleo with expansion boards exceeds the allowed current on USB. In such a condition, it is still possible to use USB for communication, programming, or debugging only. -
Page 21: Leds
UM3417 Hardware layout and configuration LEDs 5V_PWR LED (LD1) The green LED (LD1) indicates that the STM32 part is powered by a 5V source. It also shows the power source of the user USB CN2 when it is used as a source port. ®... -
Page 22: Push-Buttons
R37 and R38 ON • R36 and R39 OFF External oscillator on PC14 The input clock comes from an external oscillator via the PC14 signal on the ST morpho connector (CN3 pin 29). The following configuration is needed: • R37 and R38 OFF •... -
Page 23: Hse Clock Supply
R72 and R67 OFF. The external crystal is not connected to HSE. • R83 and R62 ON. ST morpho headers are connected as GPIOs. Reset sources The reset signal of the Nucleo board is active LOW and the reset sources include: •... -
Page 24: Octo-Spi Flash Memory
® USB Type-C (HS, DRP) ® The STM32N6 Nucleo-144 board supports a USB HS 2.0 interface on the USB Type-C receptacle connector ® (CN8). It offers compatibility with USB Type-C revision 1.3, USB PD 3.0, PPS, and USB BC 1.2 on the ®... -
Page 25: Ethernet
UM3417 Hardware layout and configuration 7.12 Ethernet The STM32N6 Nucleo-144 board supports 10/100-Mbit Ethernet communication with a PHY and integrates an RJ45 connector (CN11). The Ethernet PHY is connected to the STM32N657X0H3Q microcontroller via an RMII interface. Table 9 describes the pinout of the Ethernet function. -
Page 26: Connectors
UM3417 Connectors Connectors Several connectors are implemented on the STM32N6 Nucleo-144 board: ® • ARDUINO Uno V3 connectors (CN4, CN5, CN13, and CN14) • ST morpho connectors (CN2, CN3, CN15, and CN16) • Camera module connector (CN6) ® • STLINK-V3EC USB Type-C connector (CN10) ®... -
Page 27: Arduino ® Uno V3 Connectors
UM3417 Connectors ® ARDUINO Uno V3 connectors ® ® The ARDUINO connectors (CN4, CN5, CN13, and CN14) are female connectors supporting the ARDUINO Uno V3 standard. ® Figure 13. ARDUINO Uno V3 connectors ARDUINO Power ® ARDUINO Digital 15-8 ® (CN5) (CN14) ARDUINO... -
Page 28: Figure 14. Adc/Arduino ® Input Voltage Adaptation
UM3417 Connectors Note: The analog level limit is 1.8 V while the digital I/O level is up to 3.3 V in the pins of the MCU. To avoid any risk of damaging the pins of the MCU, an amplifier is used to down the voltage level for each analog pin and implement ®... -
Page 29: Table 11. Arduino ® Uno V3 Connectors Pinout
® Table 11. ARDUINO Uno V3 connectors pinout Left connectors Right connectors Connector Pin number Pin name MCU pin Function Function MCU pin Pin name Pin number Connector I2/3C1_SCL I2/3C1_SDA AVDD AREF Ground CN14 5V_IN test SPI5_SCK PE15 IOREF 3V3 ref SPI5_MISO Digital 15-8 RESET... -
Page 30: St Morpho Headers (Cn2, Cn3, Cn15, And Cn16)
ST morpho headers (CN2, CN3, CN15, and CN16) The ST morpho consists of CN2, CN3, CN15, and CN16 male pin header footprints (CN2 and CN16 are not soldered by default). They can be used to connect the STM32 Nucleo-144 board to an extension board or a prototype/wrapping board placed on top of it. -
Page 31: Table 12. St Morpho Connector (Cn3, Cn15) Pin Assignment
UM3417 Connectors Table 12 Table 13 show the pin assignments for the STM32 on the ST morpho connector. Table 12. ST morpho connector (CN3, CN15) pin assignment CN3 odd pins CN3 even pins CN15 odd pins CN15 even pins Pin number... -
Page 32: Table 13. St Morpho Connector (Cn2, Cn16) Pin Assignment
UM3417 Connectors Table 13. ST morpho connector (CN2, CN16) pin assignment CN2 odd pins CN2 even pins CN16 odd pins CN16 even pins Pin number Pin name Pin number Pin name Pin number Pin name Pin number Pin name NC/PB1... -
Page 33: Camera Module Connector (Cn6)
UM3417 Connectors Camera module connector (CN6) A CSI camera module is supported thanks to the 22‑pin dedicated ZIF connector (CN6). The camera module with RPI0 standard can be connected to the Nucleo board through a flexible cable. Table 14 describes the camera module connector (CN6) pinout. Table 14. -
Page 34: Stlink-V3Ec Usb Type-C ® Connector (Cn10)
UM3417 Connectors ® STLINK-V3EC USB Type-C connector (CN10) ® The USB Type-C connector (CN10) is used to connect the embedded STLINK-V3EC to the PC for programming and debugging purposes. ® Figure 16. USB Type-C connector (CN10) front view The related pinout for the USB STLINK-V3EC connector is listed in Table ®... -
Page 35: User Usb Type-C ® Connector (Cn8)
UM3417 Connectors ® User USB Type-C connector (CN8) ® Figure 17. USB Type-C connector (CN8) front view The related pinout for the user USB connector is listed in Table ® Table 16. User USB Type-C connector (CN8) pinout Connector Pin number Pin name Signal name STM32 pin... -
Page 36: Ethernet Rj45 Connector (Cn11)
Connectors Ethernet RJ45 connector (CN11) The STM32N6 Nucleo-144 board supports 10 Mbps/100 Mbps Ethernet communication with a PHY (U15) and integrated RJ45 connector (CN11). The Ethernet PHY is connected to the MCU via the RMII interface. The X4 oscillator generates the 25 MHz clock for the PHY. The 50 MHz clock for the MCU (derived from the 25 MHz crystal oscillator) is provided by the RMII_REF_CLK of the PHY. -
Page 37: Solder Bridge Configuration For Connectors
UM3417 Connectors Solder bridge configuration for connectors Table 18 details the solder bridges of the STM32N6 Nucleo-144 board for the expansion connector. Table 18. Solder bridge configuration Definition Solder bridge Setting Comment PG12 is connected to ST morpho CN2 pin 21... -
Page 38: Nucleo-N657X0-Q Product Information
• On the targeted STM32 that is soldered on the board (for an illustration of STM32 marking, refer to the STM32 datasheet Package information paragraph at the www.st.com website). • Next to the ordering part number of the evaluation tool that is stuck, or silk-screen printed on the board. -
Page 39: Nucleo-N657X0-Q Product History
UM3417 NUCLEO-N657X0-Q product information NUCLEO-N657X0-Q product history Table 19. Product history Order Product Product details Product change description Product limitations code identification MCU: • STM32N657X0 silicon revision "B" MCU errata sheet: NUN657X0Q$CR1 Initial revision No limitation • STM32N6xxx device errata (ES0620) Board: •... -
Page 40: Federal Communications Commission (Fcc) And Ised Canada Compliance
UM3417 Federal Communications Commission (FCC) and ISED Canada Compliance Statements Federal Communications Commission (FCC) and ISED Canada Compliance Statements 10.1 FCC Compliance Statement Part 15.19 This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. -
Page 41: Ce Conformity
UM3417 CE conformity CE conformity 11.1 Warning EN 55032 / CISPR32 (2012) Class A product Warning: this device is compliant with Class A of EN55032 / CISPR32. In a residential environment, this equipment may cause radio interference. Avertissement : cet équipement est conforme à la Classe A de la EN55032 / CISPR 32. Dans un environnement résidentiel, cet équipement peut créer des interférences radio. -
Page 42: Product Disposal
UM3417 Product disposal Product disposal Disposal of this product: WEEE (Waste Electrical and Electronic Equipment) (Applicable in Europe) This symbol on the product, accessories, or accompanying documents indicates that the product and its electronic accessories should not be disposed of with household waste at the end of their working life. -
Page 43: Revision History
UM3417 Revision history Table 21. Document revision history Date Revision Changes 03-Jan-2025 Initial release. UM3417 - Rev 1 page 43/48... -
Page 44: Table Of Contents
UM3417 Contents Contents Features................2 Ordering information . - Page 45 ST morpho headers (CN2, CN3, CN15, and CN16) ....... . .
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Page 46: List Of Tables
ST morpho connector (CN3, CN15) pin assignment ........ -
Page 47: List Of Figures
ST morpho connector ........ - Page 48 ST’s terms and conditions of sale in place at the time of order acknowledgment. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of purchasers’...
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