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  1. Devices
  2. SAMR21 Series
  3. ATSAMR21E
  4. ATSAMR21E17A

ATSAMR21E17A

Microchip

  • Core

    Cortex-M0+, 48 MHz

  • Family

    SAMR21 Series

  • Sub-Family

    ATSAMR21E

  • CMSIS Pack

    SAMR21_DFP

The Microchip SAM R21 is a series of feature-rich, extremely low-power 2.4GHz wireless Cortex M0+MCUs that are designed for industrial and consumer wireless applications, either running proprietary communication stacks or solutions compliant to the IEEE 802.15.4 standard.

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

  • I/O
    External Interrupts 14 External Interrupts
    Inputs/Outputs 16 Inputs/Outputs
    ADC 4-channel x 12-bit ADC
    Analog Comparator 2 x Analog Comparator
  • Communication
    Multi-Purpose Serial Interface Module: I2C, SPI, USART, LIN slave 4 x Multi-Purpose Serial Interface Module: I2C, SPI, USART, LIN slave
    USB (host/device) 1 x USB (host/device)
    Transceiver for 2.4GHz ISM Band 1 x Transceiver for 2.4GHz ISM Band
  • Package
    QFN Package 32-pad QFN Package
  • Controls
    Capacitive Touch Inputs 1 x Capacitive Touch Inputs
  • Spec
    Operating Temperature Range -40 °C .. +125 °C Operating Temperature Range
  • Power
    Operating Voltage 1.8 V .. 3.6 V Operating Voltage
  • Clock
    RTC 32.77 kHz RTC
  • Timer
    Watchdog 1 x Watchdog
    Timer/Counter Module 6 x 32-bit Timer/Counter Module
  • Core features
    DMA channel 12-channel DMA channel