The main component of the deRFmega256-23M12 is the ATmega256RFR2 and a PA/LNA front-end. The single chip solution of Atmel combines an 8-Bit AVR microcontroller with a 2.4 GHz transceiver for wireless applications like ZigBee or 6LoWPAN and complies with IEEE 802.15.4. The radio module is designed as long range end devices for wireless sensor networks combined with very low sleeping current. The user can access all important signals via solderable LGA pads (0.80 mm pitch), positioned at the radio module's bottom side. With the special receive features of the ATmega256RFR2 the module consumes with at 8 MHz running microcontroller only unrivaled 17 mA in receive listen extending battery life considerably. The solderable RF pads allow the use of own external antenna designs or coaxial sockets. Features: Dimensions: 21.5 x 13.2 x 3.0 mm Operating temperature: -40 to +85°C Power supply: 2.0 to 3.6 VDC Power consumption @ 3.3 VDC: TX: 49 mA @ +5,5 dBm, TX: 233 mA @ +23 dBm, RX: 22 mA | RX listen: 17mA, Sleep: Connections: 59 Pads Antenna: RF pads Antenna gain: Depending on antenna External front end connection: Yes Range: > 200m (line of sight), depending on antenna Frequency range: 2.4 GHz Transmit power: +23 dBm (US) | +10 dBm (EU) Receiver sensitivity: -104 dBm (250kbit/s) Communication standard: IEEE 802.15.4 Data rate (gross): 250 kbit/s, 500 kbit/s, 1 Mbit/s, 2 Mbit/s Microcontroller: ATmega256RFR2 Transceiver: Integrated Interfaces: JTAG, UART, I2C, ADC, SPI, GPIO Certification: CE, ETSI, FCC
