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Overview
- Part Family:SAM D21
- CPU Type:Cortex-M0+
- MaxSpeed (MHz):48
- Program Memory Size (KB):128
- SRAM (KB):16
- Temp. Range Min.:-40
- Temp. Range Max.:125
- Operation Voltage Min.(V):1.62
- Operation Voltage Max.(V):3.63
- SPI:5
- I2C:5
- UART:5
- QSPI:0
- Crypto Engine:No
- Internal Oscillator:32khz, 32Khz ULP, 8Mhz
- Pin Count:48
- Processor
- ARM CortexM0+ CPU running at up to 48MHz
- Single-cycle hardware multiplier
- Micro Trace Buffer (MTB)
- Memories
- 128KB in-system self-programmable Flash
- 4KB RWW support
- 16KB SRAM Memory
- System
- Power-on reset (POR) and brownout detection (BOD)
- Internal and external clock options with 48MHz Digital Frequency Locked Loop (DFLL48M)
- and 48MHz to 96MHz Fractional Digital Phase Locked Loop (FDPLL96M)
- External Interrupt Controller (EIC)
- 16 external interrupts
- One non-maskable interrupt
- Two-pin Serial Wire Debug (SWD) programming, test and debugging interface
- Low Power
- Idle and standby sleep modes
- SleepWalking peripherals
- Peripherals
- 12channel Direct Memory Access Controller (DMAC)
- 12channel Event System
- Five 16bit Timer/Counters (TC), configurable as either:
- One 16bit TC with two compare/capture channels
- One 8bit TC with two compare/capture channels
- One 32bit TC with two compare/capture channels, by using two TCs
- Four 24bit Timer/Counters for Control (TCC), with extended functions:
- Up to four compare channels with optional complementary output
- Generation of synchronized pulse width modulation (PWM) pattern across port pins
- Deterministic fault protection, fast decay and configurable dead-time between complementary output
- Dithering that increase resolution with up to 5 bit and reduce quantization error
- 32bit Real Time Counter (RTC) with clock/calendar function
- Watchdog Timer (WDT)
- CRC32 generator
- Six Serial Communication Interfaces (SERCOM), each configurable to operate as either:
- USART with full-duplex and single-wire half-duplex configuration
- I2C up to 3.4MHz
- SPI
- LIN slave
- One 12bit, 350ksps Analog-to-Digital Converter (ADC) with up to 18 channels
- Differential and single-ended input
- 1/2x to 16x programmable gain stage
- Automatic offset and gain error compensation
- Oversampling and decimation in hardware to support 13, 14, 15or 16bit resolution
- 10-bit, 350ksps Digital-to-Analog Converter (DAC)
- Four Analog Comparators (AC) with window compare function
- I/O
- 38 GPIO pins
- Packages
- 48pin TQFP, QFN
- Operating Voltage
- 1.62V 3.63V
A low-power, high-performance ARM® Cortex®-M0+ based Flash microcontroller (MCU) optimized for control applications, the Microchip's ATSAMD21E15L is ideal for a wide range of lighting, motor control and industrial applications. It features:
- 128KB of Flash and 16KB of SRAM
- 4KB RWW support
- Up to 48MHz operating frequency
- Five serial communication (SERCOM) modules configurable as UART/USART, SPI or I2C, six 16-bit timer/counters, two 24-bit timer/counters, 32-bit Real-Time Clock and calendar, one 18-channel 12-bit ADC, one 10-bit DAC and four analog comparators
- 1.62V to 3.63V power supply
- 48-pin package with up to 38 GPIO pins
- Supported by Atmel Studio, ASF and the STK600 development platform
Supported by MPLAB X IDE and MPLAB Harmony.
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Tools And Software
Development Environment
Emulator and Debuggers
Demo & Evaluation Boards
Programmers
3rd Party Tools
| Tools |
|---|
 MPLAB® X Integrated Development Environment (IDE) is an expandable, highly configurable software program that incorporates powerful tools to help you discover, configure, develop, debug and qualify embedded designs for most of Microchip’s microcontrollers, microprocessors and digital signal controllers.
|
| When combined with our free and award-winning MPLAB X Integrated Development Environment (IDE), the fully graphical frontend provides:
Editing errors and breakpoints that match corresponding lines in the source code
Single stepping through C and C++ (C++ only available in MPLAB XC32++ compilers) source code to inspect variables and structures at critical points
Data structures with defined data types, including floating point, display in watch windows
|
| MPLAB Code Configurator supports 8-bit, 16-bit and 32-bit PIC® microcontrollers. MCC is incorporated into both the downloadable MPLAB X Integrated Development Environment (IDE) and the cloud-based MPLAB Xpress IDE.
|
| MPLAB® Harmony is a modular framework that provides interoperable firmware libraries for application development on 32-bit microcontrollers and microprocessors.
|
| MPLAB® Extensions for Microsoft® Visual Studio Code® (VS Code®) is a collection of VS Code extensions that combines the power of the MPLAB development ecosystem with the versatility of VS Code. Whether you are a new or existing client, MPLAB Extensions for VS Code provides you with a seamless, flexible and efficient development environment with comprehensive support for designs based on our devices.
|
| Tools |
|---|
| Atmel-ICE is a powerful development tool for debugging and programming ARM® Cortex®-M based SAM and AVR microcontrollers with on-chip debug capability.
|
| Power Debugger is a powerful development tool for debugging and programming AVR and ARM® Cortex®-M based SAM microcontrollers. In addition the Power Debugger features two independent current sensing channels and includes a CDC virtual COM port interface as well as Data Gateway Interface channels for streaming application data to the host computer from a SPI, USART, TWI or GPIO source.
|
| The MPLAB® ICD 4 In-Circuit Debugger/Programmer is Microchip’s fastest, cost-effective debugging and programming tool for PIC® Microcontrollers (MCUs), Microprocessors (MPUs) and dsPIC® Digital Signal Controllers (DSCs).
|
| J-32 Debug Probe is a JTAG/ICSP Debugger that supports all of Microchip's 32-bit MCU and MPU products.
|
| The MPLAB® Snap In-Circuit Debugger/Programmer allows affordable, fast and easy debugging and programming of PIC®, dsPIC® and AVR flash MCUs and MPUs, using the powerful graphical user interface of MPLAB X Integrated Development Environment (IDE). The MPLAB Snap can be connected to a design engineer's computer using a High-Speed USB 2.0 interface and can be connected to the target via an 8-pin Single In-Line (SIL) connector. The connector uses two device I/O pins and the reset line to implement in-circuit debugging and In-Circuit Serial Programming™ (ICSP™). It has all the speed and features entry-level users need to quickly debug their prototype.
|
| Tools |
|---|
| Curiosity Nano is an evaluation platform that provides a set of small boards with access to most of the microcontroller I/Os. The platform consists of a series of low pin-count microcontroller (MCU) boards, which are integrated with MPLAB X IDE to present relevant user guides, application notes, data sheets, and example code. The platform features a Virtual COM port (CDC) for serial communication to a host PC and a Data Gateway Interface (DGI) GPIO.
|
| I/O1 Xplained Pro provides a light sensor, temperature sensor, and microSD card for use with Xplained Pro Evaluation Kits. |
| OLED1 Xplained Pro is an extension kit with a 128x32 OLED display, 3 LEDs and 3 push buttons. |
| BNO055 Xplained is an extension with the Bosch BNO055 Intelligent 9-axis absolute orientation sensor and a RGB LED.
|
| PROTO1 Xplained Pro provides easy prototyping on the Xplained Pro platform. |
| Tools |
|---|
| Atmel-ICE is a powerful development tool for debugging and programming ARM® Cortex®-M based SAM and AVR microcontrollers with on-chip debug capability.
|
| Power Debugger is a powerful development tool for debugging and programming AVR and ARM® Cortex®-M based SAM microcontrollers. In addition the Power Debugger features two independent current sensing channels and includes a CDC virtual COM port interface as well as Data Gateway Interface channels for streaming application data to the host computer from a SPI, USART, TWI or GPIO source.
|
| The MPLAB® ICD 4 In-Circuit Debugger/Programmer is Microchip’s fastest, cost-effective debugging and programming tool for PIC® Microcontrollers (MCUs), Microprocessors (MPUs) and dsPIC® Digital Signal Controllers (DSCs).
|
| J-32 Debug Probe is a JTAG/ICSP Debugger that supports all of Microchip's 32-bit MCU and MPU products.
|
| The MPLAB® PICkit™ 4 In-Circuit Debugger/Programmer allows fast and easy debugging and programming of PIC®, dsPIC® , AVR, SAM and CEC flash microcontrollers and microprocessors.
|
["developmentenvironment","Development Environment"] ,
["emulators","Emulator and Debuggers"] ,
["demoevaluationboards","Demo & Evaluation Boards"] ,
["programmerrelations","Programmers"] ,
["thirdpartytools","3rd Party Tools"] ,
["legacy","Legacy"] ,
["softwarelibraries","Library and Firmware"]
Design Resources
Reference Designs
Code Examples
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|---|---|
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referencedesigns,Reference Designs:
codeexamples,Code Examples:
ibisboarddesignfiles,Board Design Files:
