Features

  • ATSAMR21G18 System in Package
    • Single-chip ARM® Cortex®-M0+ based 32-bit Microcontroller
    • Low power 2.4 GHz transceiver for IEEE 802.15.4 and ZigBee applications
    • 256 KB Flash
    • Maximum Operating Frequency: 48 MHz
    • 128-bit AES crypto engine
    • 32-bit MAC symbol counter
    • Temperature sensor
    • Automatic transmission modes
  • AT45DB041E 4-Mbit DataFlash
  • ATECC508A CryptoAuthentication Device
    • Secure hardware-based key storage
    • Performs high-speed public key algorithms
    • NIST standard P256 elliptic curve support
    • SHA-256 Hash algorithm with HMAC option
    • Guaranteed unique 72-bit serial number
    • High-quality FIPS Random Number Generator (RNG)
    • Intrusion latch for external tamper switch
  • Single 1.8V – 3.6V supply
  • Radio Module with a Link Budget of 103 dBm
  • FCC / ETSI Compliant RF Front End with Harmonic Filter
  • Three SERCOM Units Left for External Applications
  • 32.768 kHz Crystal Oscillator
  • High Precision 16 MHz Crystal Oscillator
  • 12-bit, 350 ksps Analog-to-Digital Converter (ADC)
  • I2C up to 3.4 MHz
  • Full-speed (12 Mbps) Universal Serial Bus (USB) 2.0 Interface
  • 17 External GPIO Lines
  • One GPIO for ATECC508A Intrusion Latch