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  1. Devices
  2. SAM L Series
  3. SAM L21
  4. ATSAML21J16A

ATSAML21J16A

Microchip

  • Core

    Cortex-M0+, 48 MHz

  • Family

    SAM L Series

  • Sub-Family

    SAM L21

  • CMSIS Pack

    SAM-L_DFP

A rich set of peripherals, flexibility and ease-of-use combined with Ultra low power consumption make the Microchip ǀ SMART SAM L21 ARM Cortex-M0+ based microcontroller series ideal for IoT, wireless, and any system that needs large memories and ultra-low power consumption.
The SAM L21 is designed for simple and intuitive migration between SAM L devices with identical peripheral modules, compatible code and a linear address map and is compatible with the SAM D family of general-purpose MCUs.

Core

Processor

Cortex-M0+
Maximum Clock Frequency 48 MHz
Memory Protection Unit NO_MPU
Floating Point Unit NO_FPU
Trust Zone
Digital Signal Processor
CortexM Vector Extensions
Endian Little-endian
Features View features

Processor

Cortex-M0+, 48 MHz

  • Timer
    Timer/Counter 5 x 32-bit Timer/Counter
    Watchdog Timer 1 x Watchdog Timer
    Timer/Counter for Control 3 x 32-bit Timer/Counter for Control
  • Communication
    SERCOMM (i2C, USART, SPI) 6 x SERCOMM (i2C, USART, SPI)
    USB Embedded Host and Device mode 1 x USB Embedded Host and Device mode
  • I/O
    Analog to Digital Converter 20-channel x 12-bit Analog to Digital Converter
    General Purpose I/Os 51 General Purpose I/Os
    External Interrupts 16 External Interrupts
    Analog Comparator 2 x Analog Comparator
    Digital to Analog Converter 2 x 10-bit Digital to Analog Converter
    Temperature Sensor 1 x Temperature Sensor
  • Package
    QFN Package 64-pad QFN Package
    TQFP Package 64-lead TQFP Package
  • Core features
    Event System channels 12 x Event System channels
    DMA Controller 16-channel DMA Controller
    Advanced Encryption Standard 128/256-bit Advanced Encryption Standard
    True Random Number Generator 1 x True Random Number Generator
  • Other
    Operational Amplifier 1 x Operational Amplifier
  • Clock
    Real Time Clock 32.77 kHz Real Time Clock
  • Controls
    Peripheral Touch Controller 1 x Peripheral Touch Controller
  • Power
    Operating Voltage 1.63 V .. 3.63 V Operating Voltage
  • Spec
    Operating Temperature Range -40 °C .. +85 °C Operating Temperature Range