ATMEGA644RFR2-ZU [Microchip]

An IEEE 802.15.4 compliant single chip combines an industry-leading AVR microcontroller and best-in-class 2.4GHz RF transceiver. It offers the industry's highest RF performance for single chip devices, with a link budget of 103.5dBm while consuming 50% less current than the existing offerings. The device features hardware assisted multiple PAN address filtering (MAF), improved channel masks on CH25 and CH26 allowing the device to run full power (1W) on these channels using external power amplifiers, wake-on radio, improved link efficiency and reliability using RX override, 32-bit MAC symbol counter, temperature sensor, automatic transmission modes, 128-bit AES crypto engine, true random number generator, high data rate modes, and antenna diversity support.

• Ultra compact size (30.0 × 20.0mm)
• High RX sensitivity (-97dBm)
• Outperforming link budget (up to100.6dB)
• Up to +3.6dBm output power
• 9.6mA in RX mode(1)
• 16.4mA in TX mode
• 0.6μA in sleep mode(2)
• Ample memory resources (256K Bytes In-System, Self-Programmable Flash memory, 8K Bytes EEPROM, 32K Bytes SRAM)
• 4-wire SPI, TWI
• ISP, JTAG
• 2 Analog comparator Input
• UART, USART
• Timer, PWM
• 4 ADC lines
• External Clock Input, Internal Clock Output
• Up to 31 lines configurable as GPIO