Atmel ATSAML21-XPRO-B
SAM L21 Xplained Pro Evaluation Kit
The Atmel® | SMART SAM L21 Xplained Pro evaluation kit is ideal for evaluating and prototyping with the ultra low power Atmel SAM L21 ARM® Cortex®-M0+ based microcontrollers. Several extension boards that add functionality to the SAM D21 Xplained Pro, such as WiFi & Bluetooth connectivity, motion sensing, displaye etc. can be purchased separately.
Supported by the Atmel Studio integrated development platform, the kit provides easy access to the features of the Atmel ATSAML21J18B microcontroller and explains how to integrate the device in a custom design. The Xplained Pro MCU series evaluation kits include an on-board Embedded Debugger and no external tools are necessary to program or debug the ATSAML21J18B MCU. The Xplained Pro extension kits offers additional peripherals to extend the features of the board and ease the development of custom designs
Key features of the SAML21-XPRO-B board¶
- ATSAML21J18B microcontroller
- One mechanical reset button
- One mechanical user pushbutton
- One yellow user LED
- Backup battery
- 32.768kHz crystal
- USB interface, device and host mode
- Three Xplained Pro extension headers
- One QTouch® button
- Embedded Debugger
- Auto-ID for board identification in Atmel Studio
- One yellow status LED
- One green board power LED
- Symbolic debug of complex data types including scope information
- Programming and debugging, including power measurement
- Data Gateway Interface: SPI, I²C, 4 GPIOs
- Virtual COM port (CDC)
- USB powered
Note
Please note that the SAML21-XPRO does not yet support drag'n'drop programming. Use the Free Atmel Studio IDE to program & debug the board.
Downloads
Key parameters for ATSAML21J18B¶
| Parameter | Value |
|---|---|
| Flash (Kbytes) | 256 Kbytes |
| USB Transceiver | 1 |
| Ext Interrupts | 16 |
| Max I/O Pins | 51 |
| Hardware QTouch Acquisition | Yes |
| CPU | Cortex-M0+ |
| Max. Operating Freq. (MHz) | 48 MHz |
| Pin Count | 64 |
| USB Speed | Full Speed |
| Quadrature Decoder Channels | 0 |
| Ethernet | 0 |
| SSC | 0 |
| I2S | No |
| UART | 6 |
| TWI (I2C) | 6 |
| SPI | 6 |
| USB Interface | Host, Device |
| ADC Channels | 20 |
| ADC Speed (ksps) | 1000 |
| ADC Resolution (bits) | 12 |
| Camera Interface | No |
| Video Decoder | No |
| Graphic LCD | No |
| SD / eMMC | 0 |
| DAC Resolution (bits) | 12 |
| DAC Channels | 2 |
| Resistive Touch Screen | No |
| Analog Comparators | 2 |
| SRAM (Kbytes) | 32 |
| Temp. Sensor | Yes |
| DRAM Memory | No |
| External Bus Interface | 0 |
| EEPROM (Bytes) | 0 |
| Temp. Range (deg C) | -40 to 85 |
| Debug Interface | SWD |
| picoPower | Yes |
| NAND Interface | No |
| Operating Voltage (Vcc) | 1.62 to 3.63 |
| FPU | No |
| MPU / MMU | no / no |
| Output Compare Channels | 24 |
| Timers | 8 |
| PWM Channels | 24 |
| Input Capture Channels | 8 |
| Watchdog | Yes |
| Calibrated RC Oscillator | Yes |
| RTC | RTC/Counter, Clock+Cal |
| 32kHz RTC | Yes |
| ISP | Yes |
| Self Program Memory | 8 |
| Crypto Engine | AES/TRNG |
| LIN | 6 |
| # of Touch Channels | 192 |
| ADC Gain Stage | opAmps |
| Diff. ADC Inputs | 8 |
Board Partner
Atmel
Today, microcontrollers are just about everywhere, powering an expansive array of digital devices. Many are calling this the era of The Internet of Things, a highly intelligent, connected world where Internet-enabled devices will outnumber people. Atmel is pleased to be at the heart of this movement, developing innovative technologies that fuel machine-to-machine (M2M) communication and the “industrial Internet.”