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单芯片解决方案

对于所有物联网 (IoT) 设计,现在,可以在一流的 2.4 GHz 射频收发器中选用基于 ARM® Cortex®-M0+ 的 32 位微控制器或选用 8 位 AVR 内核微控制器。SAM R21 系列像其先前的产品(ATmegaxxxRFR2 和 ATmegaxxxRFA1)一样,是符合 IEEE 802.15.4 标准的单芯片无线解决方案,它超越了惯有的所有优点和功能,具有如下改进:

  • 借助广泛的存储密度产品(64K 至 256K 闪存存储器),可以轻松扩展您的设计
  • 通过在主动模式下仅消耗 70?A/MHz,让您的电池供电设备持续运行更长的时间;与市场上居第二位的产品相比,电流消耗减少高达 50%
  • 在接口组合与 PCB 布线方面的设计上更灵活,从而支持更丰富的外设,例如,可以加入能配置为 UART/USART、SPI 或 I2C 的串行通信模块 (SERCOM)
  • 通过使用高达 48MHz 的工作频率并提供 105dBm 的射频链路预算,满足更高性能的应用

所有这些改进的优点都基于 8 位 AVR 无线微控制器所打造的坚实基础,多年来 8 位 AVR 无线微控制器应用广泛,可提供如下功能:

  • 先进的硬件辅助降低功耗 (RPC) 功能
  • 多种掉电模式,例如,射频唤醒功能,能在微控制器休眠时让射频收发器保持活动状态,从而进一步提高了效率。
  • 通过为每个传入帧自动从两个天线中选择最佳信号,多天线集成功能可以提高系统的可靠性

最后但同样重要的是,借助免费的 Atmel 软件栈、无线编辑器、库以及硬件评估和开发工具包,系统开发依然非常容易。

 

32-bit ARM Cortex Based

优势

说明

  • ARM Cortex M0+ based MCU running up to 48MHz
  • Up to 256KB embedded Flash
  • Low power consumption at <70?A/MHz
  • 12-channel DMA and event system
  • Up to five serial communication modules (SERCOM)
  • Full-Speed USB Device and embedded Host
  • 12-bit ADC
  • Hardware touch support
  • Ultra-low power 2.4GHz transceiver

The Atmel® 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.

Device
说明

Single-chip ARM® Cortex®-M0+ based 32-bit Microcontroller with Low Power 2.4GHz Transceiver for IEEE 802.15.4 and ZigBee Applications with 64KB Flash and 16 I/O pins in a QFN32 package.

Single-chip ARM® Cortex®-M0+ based 32-bit Microcontroller with Low Power 2.4GHz Transceiver for IEEE 802.15.4 and ZigBee Applications with 128KB Flash and 16 I/O pins in a QFN32 package.

Single-chip ARM® Cortex®-M0+ based 32-bit Microcontroller with Low Power 2.4GHz Transceiver for IEEE 802.15.4 and ZigBee Applications with 256KB Flash and 16 I/O pins in a QFN32 package.

Single-chip ARM® Cortex®-M0+ based 32-bit Microcontroller with Low Power 2.4GHz Transceiver for IEEE 802.15.4 and ZigBee Applications with 64KB Flash and 28 I/O pins in a QFN48 package.

Single-chip ARM® Cortex®-M0+ based 32-bit Microcontroller with Low Power 2.4GHz Transceiver for IEEE 802.15.4 and ZigBee Applications with 128KB Flash and 28 I/O pins in a QFN48 package.

Single-chip ARM® Cortex®-M0+ based 32-bit Microcontroller with Low Power 2.4GHz Transceiver for IEEE 802.15.4 and ZigBee Applications with 256KB Flash and 28 I/O pins in a QFN48 package.

8-bit AVR Based

优势

说明

  • 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)

The Atmel 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.

器件
说明

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.

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.

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.

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.

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.

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.

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.

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