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802.15.4 RF MCUs

You now have a choice between a 32-bit Arm® Cortex®-M0+ based and an 8-bit AVR® core microcontroller to go with a best-in-class 2.4 GHz RF transceiver for all your Internet of Things (IoT) designs. The SAM R21 and SAM R30 series, like their predecessors, the ATmegaxxxRFR2 and ATmegaxxxRFA1, are IEEE® 802.15.4-compliant single-chip wireless solutions that offer the following benefits:
  • Enables you to easily scale your design with a wide range of memory densities offerings – 64K to 256K of Flash memory
  • Allows your battery operated devices to last longer by just consuming 70 µA/MHz in active mode; consumes up to 50% less current compared to the next best offerings in the market
  • Allows greater design flexibility in interface mix and PCB routing with a richer set of peripherals, such as the inclusion of the serial communication modules (SERCOM) configurable as UART/USART, SPI or I2C
  • Addresses higher-performance applications by operating up to 48 MHz and offering a RF link budget of 105 dBm

All of these improved benefits are built on top of a solid foundation established by the 8-bit AVR wireless microcontrollers that you’ve come to love over the years, with features such as:

  • The advanced hardware-assisted reduced power consumption (RPC) capability
  • A variety of power-down modes, such as a wake-on-radio feature, which keeps the RF transceiver active while the microcontroller sleeps, further enhances efficiency.
  • Antenna diversity feature enhances reliability by automatically selecting the best signal from two antennas for each incoming frame

Last but not least, system development is still extremely easy with the support of free Atmel software stacks, Wireless Composer, libraries and hardware evaluation and development kits.

32-bit Arm Cortex Based MCUs

Benefits

  • Arm Cortex-M0+ based MCU running up to 48 MHz
  • Up to 256 KB embedded Flash
  • 512 KB integrated Serial Flash for OTA (ATSAMR21E19A)
  • Low power consumption at <70 µA/MHz
  • 12-channel DMA and event system
  • Up to four serial communication modules (SERCOM)
  • Full-Speed USB Device and embedded Host
  • 12-bit ADC
  • Hardware touch support
  • Ultra-low power 2.4 GHz transceiver
  • Antenna diversity
  • AES 128-bit hardware encryption
  • External RF front-end control
  • High-temperature version (-40°C to +125°C)

Description

The SAM R21 and SAM R30 are a series of feature-rich, extremely low-power 2.4 GHz wireless Arm Cortex-M0+ based 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.
ProductDescriptionProtocol SupportPurchase from Microchip
ATSAMR30M18 Compact shielded 12.7 mm x 11.0 mm module based on the sub-GHz, 802.15.4 ATSAMR30E18A SiP with two regulatory-certified antenna reference designsMiWiBuy Now
ATSAMR30E18A Single-chip Arm Cortex-M0+ based 32-bit Microcontroller with Low-Power Sub-GHz Transceiver for IEEE 802.15.4 Applications with 256K Flash and 32 KB RAM in a 5x5 QFN32 packageMiWiBuy Now
ATSAMR30G18A Single-chip Arm Cortex-M0+ based 32-bit Microcontroller with Low-Power Sub-GHz Transceiver for IEEE 802.15.4 Applications with 256K Flash and 32 KB RAM in a 7x7 QFN48 package.MiWiBuy Now
ATSAMR21E16A Single-chip Arm Cortex-M0+ based 32-bit Microcontroller with Low-Power 2.4 GHz Transceiver for IEEE 802.15.4 and Zigbee Applications with 64 KB Flash and 16 I/O pins in a QFN32 package.Zigbee, MiWiBuy Now
ATSAMR21E17A Single-chip Arm Cortex-M0+ based 32-bit Microcontroller with Low-Power 2.4 GHz Transceiver for IEEE 802.15.4 and Zigbee Applications with 128 KB Flash and 16 I/O pins in a QFN32 package.Zigbee, MiWiBuy Now
ATSAMR21E18A Single-chip Arm Cortex-M0+ based 32-bit Microcontroller with Low-Power 2.4 GHz Transceiver for IEEE 802.15.4 and Zigbee Applications with 256 KB Flash and 16 I/O pins in a QFN32 package.Zigbee, MiWiBuy Now
ATSAMR21E19A Single-chip Arm Cortex-M0+ based 32-bit Microcontroller with Low-Power 2.4 GHz Transceiver for IEEE 802.15.4 and Zigbee Applications with 256 KB (512 KB) Flash and 16 I/O pins in a QFN32 package.Zigbee, MiWiBuy Now
ATSAMR21G16A Single-chip Arm Cortex-M0+ based 32-bit Microcontroller with Low-Power 2.4 GHz Transceiver for IEEE 802.15.4 and Zigbee Applications with 64 KB Flash and 28 I/O pins in a QFN48 package.Zigbee, MiWiBuy Now
ATSAMR21G17A Single-chip Arm Cortex-M0+ based 32-bit Microcontroller with Low-Power 2.4 GHz Transceiver for IEEE 802.15.4 and Zigbee Applications with 128 KB Flash and 28 I/O pins in a QFN48 package.Zigbee, MiWiBuy Now
ATSAMR21G18A Single-chip Arm Cortex-M0+ based 32-bit Microcontroller with Low-Power 2.4 GHz Transceiver for IEEE 802.15.4 and Zigbee Applications with 256 KB Flash and 28 I/O pins in a QFN48 package.Zigbee, MiWiBuy Now
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8-bit AVR Based

Benefits

  • 8-bit AVR® based MCU enabling ultra-low power consumption
  • Excellent RF performance
  • Ultra-low power 2.4GHz transceiver
  • 103.5 dB power budget
  • Operation from 1.8V to 3.6V
  • RX override
  • PSD mask shaping
  • Antenna diversity
  • AES 128-bit hardware encryption
  • External RF front-end Control
  • High-temperature version (-40°C to +125°C)

Description

The AtmegaRFR2 series combines the industry's leading AVR 8-bit microcontroller and a best-in-class 2.4GHz RF transceiver in industry's best single-chip targeting IEEE 802.15.4 and ZigBee applications.
Device Description
ATmega2564RFR2 Single-chip 8-bit Microcontroller with Low Power 2.4GHz Transceiver for IEEE 802.15.4 and ZigBee Applications with 256KB Flash and 33 I/O pins..
ATmega256RFR2 Single-chip 8-bit Microcontroller with Low Power 2.4GHz Transceiver for IEEE 802.15.4 and ZigBee Applications with 256KB Flash and 38 I/O pins.
ATmega1284RFR2 Single-chip 8-bit Microcontroller with Low Power 2.4GHz Transceiver for IEEE 802.15.4 and ZigBee Applications with 128KB Flash and 33 I/O pins.
ATmega128RFR2 Single-chip 8-bit Microcontroller with Low Power 2.4GHz Transceiver for IEEE 802.15.4 and ZigBee Applications with 128KB Flash and 38 I/O pins.
ATmega644RFR2 Single-chip 8-bit Microcontroller with Low Power 2.4GHz Transceiver for IEEE 802.15.4 and ZigBee Applications with 64KB Flash and 33 I/O pins.
ATmega64RFR2 Single-chip 8-bit Microcontroller with Low Power 2.4GHz Transceiver for IEEE 802.15.4 and ZigBee Applications with 64KB Flash and 38 I/O pins.
ATmega128RFA1 Single-chip 8-bit Microcontroller with Low Power 2.4GHz Transceiver for IEEE 802.15.4 and ZigBee Applications with 128KB Flash and 38 I/O pins.