A000056

A000056 Datasheet

Code A000056

Part	Datasheet
A000056	A000056 (pdf)

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ARDUINO DUE WITHOUT HEADERS Code A000056 • The Arduino Due is a microcontroller board based on the Atmel SAM3X8E ARM Cortex-M3 CPU. It is the first Arduino board based on a 32-bit ARM core microcontroller. It has 54 digital input/output pins of which 12 can be used as PWM outputs , 12 analog inputs, 4 UARTs hardware serial ports , a 84 MHz clock, an USB OTG capable connection, 2 DAC digital to analog , 2 TWI, a power jack, an SPI header, a JTAG header, a reset button and an erase button. Warning Unlike most Arduino boards, the Arduino Due board runs at 3.3V. The maximum voltage that the I/O pins can tolerate is 3.3V. Applying voltages higher than 3.3V to any I/O pin could damage the board. The board contains everything needed to support the microcontroller simply connect it to a computer with a micro-USB cable or power it with a AC-to-DC adapter or battery to get started. The Due is compatible with all Arduino shields that work at 3.3V and are compliant with the Arduino pinout. The Due follows the pinout: • TWI SDA and SCL pins that are near to the AREF pin. • IOREF allows an attached shield with the proper configuration to adapt to the voltage provided by the board. This enables shield compatibility with a 3.3V board like the Due and AVR-based boards which operate at 5V. • An unconnected pin, reserved for future use. You can find your board warranty information here. Need Help? • On the Software on the Arduino Forum • On Projects on the Arduino Forum • On the Product itself through our Customer Support This board is supplied without headers soldered. You can find the board with headers at this link. TECH SPECS Microcontroller Operating Voltage Input Voltage recommended Input Voltage limits Digital I/O Pins Analog Input Pins Analog Output Pins Total DC Output Current on all I/O lines DC Current for 3.3V Pin DC Current for 5V Pin Flash Memory SRAM Clock Speed Length Width Weight AT91SAM3X8E 3.3V 7-12V 6-16V 54 of which 12 provide PWM output 12 2 DAC 130 mA 800 mA 800 mA 512 KB all available for the user applications 96 KB two banks 64KB and 32KB 84 MHz mm 36 g OSH Schematics Arduino Due is open-source hardware! You can build your own board using the following files EAGLE FILES IN .ZIP SCHEMATICS IN .PDF Power The Arduino Due can be powered via the USB connector or with an external power supply. The power source is selected automatically. External non-USB power can come either from an AC-to-DC adapter wall-wart or battery. The adapter can be connected by plugging a 2.1mm center-positive plug into the board's power jack. Leads from a battery can be inserted in the Gnd and Vin pin headers of the POWER connector. The board can operate on an external supply of 6 to 20 volts. If supplied with less than 7V, however, the 5V pin may supply less than five volts and the board may be unstable. If using more than 12V, the voltage regulator may overheat and damage the board. The recommended range is 7 to 12 volts. The power pins are as follows • Vin. The input voltage to the Arduino board when it's using an external power source as opposed to 5 volts from the USB connection or other regulated power source . You can supply voltage through this pin, or if supplying voltage via the power jack, access it through this pin. • 5V.This pin outputs a regulated 5V from the regulator on the board. The board can be supplied with power either from the DC power jack 7 - 12V , the USB connector 5V , or the VIN pin of the board 7-12V . Supplying voltage via the 5V or 3.3V pins bypasses the regulator, and can damage your board. We don't advise it. • 3V3. A volt supply generated by the on-board regulator. Maximum current draw is 800 mA. This regulator also provides the power supply to the SAM3X microcontroller. • GND. Ground pins. • IOREF. This pin on the Arduino board provides the voltage reference with which the microcontroller operates. A properly configured shield can read the IOREF pin voltage and select the appropriate power source or enable voltage translators on the outputs for working with the 5V or 3.3V. Memory The SAM3X has 512 KB 2 blocks of 256 KB of flash memory for storing code. The bootloader is preburned in factory from Atmel and is stored in a dedicated ROM memory. The available SRAM is 96 KB in two contiguous bank of 64 KB and 32 KB. All the available memory Flash, RAM and ROM can be accessed directly as a flat addressing space. It is possible to erase the Flash memory of the SAM3X with the onboard erase button. This will remove the currently loaded sketch from the MCU. To erase, press and hold the Erase button for a few seconds while the board is powered. Input and Output • Digital I/O pins from 0 to 53 • Each of the 54 digital pins on the Due can be used as an input or output, using pinMode ,digitalWrite , and digitalRead functions. They operate at volts. Each pin can provide source a current of 3 mA or 15 mA, depending on the pin, or receive sink a current of 6 mA or 9 mA, depending on the pin. They also have an internal pull-up resistor disconnected by default of 100 KOhm. In addition, some pins have specialized functions • Serial 0 RX and 1 TX • Serial 1 19 RX and 18 TX • Serial 2 17 RX and 16 TX • Serial 3 15 RX and 14 TX Used to receive RX and transmit TX TTL serial data with V level . Pins 0 and 1 are connected to the corresponding pins of the ATmega16U2 USB-to-TTL Serial chip. • PWM Pins 2 to 13 Provide 8-bit PWM output with the analogWrite function. the resolution of the PWM can be changed with the analogWriteResolution function. • SPI header ICSP header on other Arduino boards These pins support SPI communication using the SPI library. The SPI pins are broken out on the central 6pin header, which is physically compatible with the Uno, Leonardo and Mega2560. The SPI header can be used only to communicate with other SPI devices, not for programming the SAM3X with the In-Circuit-Serial-Programming technique. The SPI of the Due has also advanced features that can be used with the Extended SPI methods for Due. • CAN CANRX and CANTX These pins support the CAN communication protocol but are not yet supported by Arduino APIs. • "L" LED 13 There is a built-in LED connected to digital pin When the pin is HIGH, the LED is on, when the pin is LOW, it's off. It is also possible to dim the LED because the digital pin 13 is also a PWM output. • TWI 1 20 SDA and 21 SCL • TWI 2 SDA1 and SCL1. Support TWI communication using the Wire library. SDA1 and SCL1 can be controlled using the Wire1 class provided by the Wire library. While SDA and SCL have internal pullup resistors, SDA1 and SCL1 have not. Adding two pullup resistor on SDA1 and SCL1 lines is required for using Wire1. • Analog Inputs pins from A0 to A11 The Due has 12 analog inputs, each of which can provide 12 bits of resolution i.e. 4096 different values . By default, the resolution of the readings is set at 10 bits, for compatibility with other Arduino boards. It is possible to change the resolution of the ADC withanalogReadResolution . The Due’s analog inputs pins measure from ground to a maximum value of 3.3V. Applying more than 3.3V on the Due’s pins will damage the SAM3X chip. The analogReference function is ignored on the Due. The AREF pin is connected to the SAM3X analog reference pin through a resistor bridge. To use the AREF pin, resistor BR1 must be desoldered from the PCB. • DAC1 and DAC2 These pins provides true analog outputs with 12-bits resolution 4096 levels with theanalogWrite function. These pins can be used to create an audio output using the Audio library. Please note that DAC output range is actually from V to V only. Other pins on the board: • AREF Reference voltage for the analog inputs. Used with analogReference . • Reset Bring this line LOW to reset the microcontroller. Typically used to add a reset button to shields which block the one on the board. See also the mapping between Arduino pins and SAM3X ports PIN MAPPING SAM3X Communication The Arduino Due has a number of facilities for communicating with a computer, another Arduino or other microcontrollers, and different devices like phones, tablets, cameras and so on. The SAM3X provides one hardware UART and three hardware USARTs for TTL 3.3V serial communication. The Programming port is connected to an ATmega16U2, which provides a virtual COM port to software on a connected computer To recognize the device, Windows machines will need a .inf file, but OSX and Linux machines will recognize the board as a COM port automatically . The 16U2 is also connected to the SAM3X hardware UART. Serial on pins RX0 and TX0 provides Serial-to-USB communication for programming the board through the ATmega16U2 microcontroller. The Arduino software includes a serial monitor which allows simple textual data to be sent to and from the board. The RX and TX LEDs on the board will flash when data is being transmitted via the ATmega16U2 chip and USB connection to the computer but not for serial communication on pins 0 and The Native USB port is connected to the SAM3X. It allows for serial CDC communication over USB. This provides a serial connection to the Serial Monitor or other applications on your computer. It also enables the Due to emulate a USB mouse or keyboard to an attached computer. To use these features, see the Mouse and Keyboard library reference pages. The Native USB port can also act as a USB host for connected peripherals such as mice, keyboards, and smartphones. To use these features, see the USBHost reference pages. The SAM3X also supports TWI and SPI communication. The Arduino software includes a Wire library to simplify use of the TWI bus see the documentation for details. For SPI communication, use the SPI library. Programming The Due can be programmed with the Arduino Software IDE . For details, see thereference and tutorials. Uploading sketches to the SAM3X is different than the AVR microcontrollers found in other Arduino boards because the flash memory needs to be erased before being re-programmed. Upload to the chip is managed by ROM on the SAM3X, which is run only when the chip's flash memory is empty. Either of the USB ports can be used for programming the board, though it is recommended to use the Programming port due to the way the erasing of the chip is handled • Programming port To use this port, select "Arduino Due ProgrammingPort " as your board in the Arduino IDE. Connect the Due's programming port the one closest to the DC power jack to your computer. The programming port uses the 16U2 as a USB-to-serial chip connected to the first UART of the SAM3X RX0 and TX0 . The 16U2 has two pins connected to the Reset and Erase pins of the SAM3X. Opening and closing the Programming port connected at 1200bps triggers a “hard erase” procedure of the SAM3X chip, activating the Erase and Reset pins on the SAM3X before communicating with the UART. This is the recommended port for programming the Due. It is more reliable than the "soft erase" that occurs on the Native port, and it should work even if the main MCU has crashed. • Native port To use this port, select "Arduino Due NativeUSBPort " as your board in the Arduino IDE. The Native USB port is connected directly to the SAM3X. Connect the Due's Native USB port the one closest to the reset button to your computer. Opening and closing the Native port at 1200bps triggers a 'soft erase' procedure the flash memory is erased and the board is restarted with the bootloader. If the MCU crashed for some reason it is likely that the soft erase procedure won't work as this procedure happens entirely in software on the SAM3X. Opening and closing the native port at a different baudrate will not reset the SAM3X. Unlike other Arduino boards which use avrdude for uploading, the Due relies on bossac.The ATmega16U2 firmware source code is available in the Arduino repository. You can use the ISP header with an external programmer overwriting the DFU bootloader . See this user-contributed tutorial for more information. USB Overcurrent Protection The Arduino Due has a resettable polyfuse that protects your computer's USB ports from shorts and overcurrent. Although most computers provide their own internal protection, the fuse provides an extra layer of protection. If more than 500 mA is applied to the USB port, the fuse will automatically break the connection until the short or overload is removed. Physical Characteristics and Shield Compatibility The maximum length and width of the Arduino Due PCB are 4 and inches respectively, with the USB connectors and power jack extending beyond the former dimension. Three screw holes allow the board to be attached to a surface or case. Note that the distance between digital pins 7 and 8 is 160 mil not an even multiple of the 100 mil spacing of the other pins. The Arduino Due is designed to be compatible with most shields designed for the Uno, Diecimila or Duemilanove. Digital pins 0 to 13 and the adjacent AREF and GND pins , analog inputs 0 to 5, the power header, and "ICSP" SPI header are all in equivalent locations. Further the main UART serial port is located on the same pins 0 and Please note that I2C is not located on the same pins on the Due 20 and 21 as the Duemilanove / Diecimila analog inputs 4 and 1-16-18

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ARDUINO DUE WITHOUT HEADERS

Code A000056
• The Arduino Due is a microcontroller board based on the Atmel SAM3X8E ARM Cortex-M3 CPU. It is the first Arduino board based on a 32-bit ARM core microcontroller. It has 54 digital input/output pins of which 12 can be used as PWM outputs , 12 analog inputs, 4 UARTs hardware serial ports , a 84 MHz clock, an USB OTG capable connection, 2 DAC digital to analog , 2 TWI, a power jack, an SPI header, a JTAG header, a reset button and an erase button. Warning Unlike most Arduino boards, the Arduino Due board runs at 3.3V. The maximum voltage that the I/O pins can tolerate is 3.3V. Applying voltages higher than 3.3V to any I/O pin could damage the board. The board contains everything needed to support the microcontroller simply connect it to a computer with a micro-USB cable or power it with a AC-to-DC adapter or battery to get started. The Due is compatible with all Arduino shields that work at 3.3V and are compliant with the Arduino pinout. The Due follows the pinout:
• TWI SDA and SCL pins that are near to the AREF pin.
• IOREF allows an attached shield with the proper configuration to adapt to the
voltage provided by the board. This enables shield compatibility with a 3.3V board like the Due and AVR-based boards which operate at 5V.
• An unconnected pin, reserved for future use. You can find your board warranty information here.

Need Help?
• On the Software on the Arduino Forum
• On Projects on the Arduino Forum
• On the Product itself through our Customer Support

This board is supplied without headers soldered. You can find the board with headers at this link.

TECH SPECS

Microcontroller Operating Voltage Input Voltage recommended Input Voltage limits Digital I/O Pins Analog Input Pins Analog Output Pins Total DC Output Current on all I/O lines DC Current for 3.3V Pin DC Current for 5V Pin

Flash Memory

SRAM Clock Speed Length Width Weight

AT91SAM3X8E 3.3V 7-12V 6-16V 54 of which 12 provide PWM output 12 2 DAC
130 mA
800 mA 800 mA 512 KB all available for the user applications 96 KB two banks 64KB and 32KB 84 MHz mm 36 g

OSH Schematics

Arduino Due is open-source hardware! You can build your own board using the following files EAGLE FILES IN .ZIP SCHEMATICS IN .PDF

Power

The Arduino Due can be powered via the USB connector or with an external power supply. The power source is selected automatically. External non-USB power can come either from an AC-to-DC adapter wall-wart or battery. The adapter can be connected by plugging a 2.1mm center-positive plug into the board's power jack. Leads from a battery can be inserted in the Gnd and Vin pin headers of the POWER connector. The board can operate on an external supply of 6 to 20 volts. If supplied with less than 7V, however, the 5V pin may supply less than five volts and the board may be unstable. If using more than 12V, the voltage regulator may overheat and damage the board. The recommended range is 7 to 12 volts. The power pins are as follows
• Vin. The input voltage to the Arduino board when it's using an external power source as opposed to 5 volts from the USB connection or other regulated power source . You can supply voltage through this pin, or if supplying voltage via the power jack, access it through this pin.
• 5V.This pin outputs a regulated 5V from the regulator on the board. The board can be supplied with power either from the DC power jack 7 - 12V , the USB connector 5V , or the VIN pin of the board 7-12V . Supplying voltage via the 5V or 3.3V pins bypasses the regulator, and can damage your board. We don't advise it.
• 3V3. A volt supply generated by the on-board regulator. Maximum current draw is 800 mA. This regulator also provides the power supply to the SAM3X microcontroller.
• GND. Ground pins.
• IOREF. This pin on the Arduino board provides the voltage reference with which the microcontroller operates. A properly configured shield can read the IOREF pin voltage and select the appropriate power source or enable voltage translators on the outputs for working with the 5V or 3.3V.

Memory

The SAM3X has 512 KB 2 blocks of 256 KB of flash memory for storing code. The bootloader is preburned in factory from Atmel and is stored in a dedicated ROM memory. The available SRAM is 96 KB in two contiguous bank of 64 KB and 32 KB. All the available memory Flash, RAM and ROM can be accessed directly as a flat addressing space. It is possible to erase the Flash memory of the SAM3X with the onboard erase button. This will remove the currently loaded sketch from the MCU. To erase, press and hold the Erase button for a few seconds while the board is powered.

Input and Output
• Digital I/O pins from 0 to 53
• Each of the 54 digital pins on the Due can be used as an input or output,
using pinMode ,digitalWrite , and digitalRead functions. They operate at volts. Each pin can provide source a current of 3 mA or 15 mA, depending on the pin, or receive sink a current of 6 mA or 9 mA, depending on the pin. They also have an internal pull-up resistor disconnected by default of 100 KOhm. In addition, some pins have specialized functions
• Serial 0 RX and 1 TX
• Serial 1 19 RX and 18 TX
• Serial 2 17 RX and 16 TX
• Serial 3 15 RX and 14 TX Used to receive RX and transmit TX TTL serial data with V level . Pins 0 and 1 are connected to the corresponding pins of the ATmega16U2 USB-to-TTL Serial chip.
• PWM Pins 2 to 13 Provide 8-bit PWM output with the analogWrite function. the resolution of the PWM can be changed with the analogWriteResolution function.
• SPI header ICSP header on other Arduino boards These pins support SPI communication using the SPI library. The SPI pins are broken out on the central 6pin header, which is physically compatible with the Uno, Leonardo and Mega2560. The SPI header can be used only to communicate with other SPI devices, not for programming the SAM3X with the In-Circuit-Serial-Programming technique. The SPI of the Due has also advanced features that can be used with the Extended SPI methods for Due.
• CAN CANRX and CANTX These pins support the CAN communication protocol but are not yet supported by Arduino APIs.
• "L" LED 13 There is a built-in LED connected to digital pin When the pin is HIGH, the LED is on, when the pin is LOW, it's off. It is also possible to dim the LED because the digital pin 13 is also a PWM output.
• TWI 1 20 SDA and 21 SCL
• TWI 2 SDA1 and SCL1. Support TWI communication using the Wire library. SDA1 and SCL1 can be controlled using the Wire1 class provided by the Wire library. While SDA and SCL have internal pullup resistors, SDA1 and SCL1 have not. Adding two pullup resistor on SDA1 and SCL1 lines is required for using Wire1.
• Analog Inputs pins from A0 to A11 The Due has 12 analog inputs, each of which can provide 12 bits of resolution i.e. 4096 different values . By default, the resolution of the readings is set at 10 bits, for compatibility with other Arduino boards. It is possible to change the resolution of the ADC withanalogReadResolution . The Due’s analog inputs pins measure from ground to a maximum value of 3.3V. Applying more than 3.3V on the Due’s pins will damage the SAM3X chip. The analogReference function is ignored on the Due. The AREF pin is connected to the SAM3X analog reference pin through a resistor bridge. To use the AREF pin, resistor BR1 must be desoldered from the PCB.
• DAC1 and DAC2 These pins provides true analog outputs with 12-bits resolution 4096 levels with theanalogWrite function. These pins can be used to create an audio output using the Audio library. Please note that DAC output range is actually from V to V only. Other pins on the board:
• AREF Reference voltage for the analog inputs. Used with analogReference .
• Reset Bring this line LOW to reset the microcontroller. Typically used to add a
reset button to shields which block the one on the board. See also the mapping between Arduino pins and SAM3X ports PIN MAPPING SAM3X

Communication

The Arduino Due has a number of facilities for communicating with a computer, another Arduino or other microcontrollers, and different devices like phones, tablets, cameras and so on. The SAM3X provides one hardware UART and three hardware USARTs for TTL 3.3V serial communication. The Programming port is connected to an ATmega16U2, which provides a virtual COM port to software on a connected computer To recognize the device, Windows machines will need a .inf file, but OSX and Linux machines will recognize the board as a COM port automatically . The 16U2 is also connected to the SAM3X hardware UART. Serial on pins RX0 and TX0 provides Serial-to-USB communication for programming the board through the ATmega16U2 microcontroller. The Arduino software includes a serial monitor which allows simple textual data to be sent to and from the board. The RX and TX LEDs on the board will flash when data is being transmitted via the ATmega16U2 chip and USB connection to the computer but not for serial communication on pins 0 and The Native USB port is connected to the SAM3X. It allows for serial CDC communication over USB. This provides a serial connection to the Serial Monitor or other applications on your computer. It also enables the Due to emulate a USB mouse or keyboard to an attached computer. To use these features, see the Mouse and Keyboard library reference pages. The Native USB port can also act as a USB host for connected peripherals such as mice, keyboards, and smartphones. To use these features, see the USBHost reference pages. The SAM3X also supports TWI and SPI communication. The Arduino software includes a Wire library to simplify use of the TWI bus see the documentation for details. For SPI communication, use the SPI library.

Programming

The Due can be programmed with the Arduino Software IDE . For details, see thereference and tutorials.

Uploading sketches to the SAM3X is different than the AVR microcontrollers found in other Arduino boards because the flash memory needs to be erased before being re-programmed. Upload to the chip is managed by ROM on the SAM3X, which is run only when the chip's flash memory is empty.

Either of the USB ports can be used for programming the board, though it is recommended to use the Programming port due to the way the erasing of the chip is handled
• Programming port To use this port, select "Arduino Due ProgrammingPort " as your board in the Arduino IDE. Connect the Due's programming port the one closest to the DC power jack to your computer. The programming port uses the 16U2 as a USB-to-serial chip connected to the first UART of the SAM3X RX0 and TX0 . The 16U2 has two pins connected to the Reset and Erase pins of the SAM3X. Opening and closing the Programming port connected at 1200bps triggers a “hard erase” procedure of the SAM3X chip, activating the Erase and Reset pins on the SAM3X before communicating with the UART. This is the recommended port for programming the Due. It is more reliable than the "soft erase" that occurs on the Native port, and it should work even if the main MCU has crashed.
• Native port To use this port, select "Arduino Due NativeUSBPort " as your board in the Arduino IDE. The Native USB port is connected directly to the SAM3X. Connect the Due's Native USB port the one closest to the reset button to your computer. Opening and closing the Native port at 1200bps triggers a 'soft erase' procedure the flash memory is erased and the board is restarted with the bootloader. If the MCU crashed for some reason it is likely that the soft erase procedure won't work as this procedure happens entirely in software on the SAM3X. Opening and closing the native port at a different baudrate will not reset the SAM3X. Unlike other Arduino boards which use avrdude for uploading, the Due relies on bossac.The ATmega16U2 firmware source code is available in the Arduino repository. You can use the ISP header with an external programmer overwriting the DFU bootloader . See this user-contributed tutorial for more information.

USB Overcurrent Protection

The Arduino Due has a resettable polyfuse that protects your computer's USB ports from shorts and overcurrent. Although most computers provide their own internal protection, the fuse provides an extra layer of protection. If more than 500 mA is applied to the USB port, the fuse will automatically break the connection until the short or overload is removed.

Physical Characteristics and Shield Compatibility

The maximum length and width of the Arduino Due PCB are 4 and inches respectively, with the USB connectors and power jack extending beyond the former dimension. Three screw holes allow the board to be attached to a surface or case. Note that the distance between digital pins 7 and 8 is 160 mil not an even multiple of the 100 mil spacing of the other pins. The Arduino Due is designed to be compatible with most shields designed for the Uno, Diecimila or Duemilanove. Digital pins 0 to 13 and the adjacent AREF and GND pins , analog inputs 0 to 5, the power header, and "ICSP" SPI header are all in equivalent locations. Further the main UART serial port is located on the same pins 0 and Please note that I2C is not located on the same pins on the Due 20 and 21 as the Duemilanove / Diecimila analog inputs 4 and
1-16-18

More datasheets: 30-3007-10 | 30-3007-3 | 30-3007-15 | AW-127A-20-Z | 94825 | 94808 | 83589031 | ATA6824C-PNQW | ATA6824-MFHW | ATA6824-PNQW

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived A000056 Datasheet file may be downloaded here without warranties.

Datasheet ID: A000056 518291