Microchip ATmega644RFR2

Description

The ATmega2564/1284/644RFR2 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture combined with a high data rate transceiver for the 2.4 GHz ISM band.By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.The radio transceiver provides high data rates from 250 kb/s up to 2 Mb/s, frame handling, outstanding receiver sensitivity and high transmit output power enabling a very robust wireless communication.

Features

• Network support by hardware assisted Multiple PAN Address Filtering
• Advanced Hardware assisted Reduced Power Consumption
• High Performance, Low Power AVR® 8-Bit Microcontroller
• Advanced RISC Architecture
• 135 Powerful Instructions – Most Single Clock Cycle Execution
• 32x8 General Purpose Working Registers / On-Chip 2-cycle Multiplier
• Up to 16 MIPS Throughput at 16 MHz and 1.8V – Fully Static Operation
• Non-volatile Program and Data Memories
• 256K/128K/64K Bytes of In-System Self-Programmable Flash
• Endurance: 10’000 Write/Erase Cycles @ 125°C (25’000 Cycles @ 85°C)
• 8K/4K/2K Bytes EEPROM
• Endurance: 20’000 Write/Erase Cycles @ 125°C (100’000 Cycles @ 25°C)
• 32K/16K/8K Bytes Internal SRAM
• JTAG (IEEE std. 1149.1 compliant) Interface
• Boundary-scan Capabilities According to the JTAG Standard
• Extensive On-chip Debug Support
• Programming of Flash EEPROM, Fuses and Lock Bits through the JTAG interface
• Peripheral Features
• Multiple Timer/Counter & PWM channels
• Real Time Counter with Separate Oscillator
• 10-bit, 330 ks/s A/D Converter; Analog Comparator; On-chip Temperature Sensor
• Master/Slave SPI Serial Interface
• Two Programmable Serial USART
• Byte Oriented 2-wire Serial Interface
• Advanced Interrupt Handler and Power Save Modes
• Watchdog Timer with Separate On-Chip Oscillator
• Power-on Reset and Low Current Brown-Out Detector
• Fully integrated Low Power Transceiver for 2.4 GHz ISM Band
• High Power Amplifier support by TX spectrum side lobe suppression
• Supported Data Rates: 250 kb/s and 500 kb/s, 1 Mb/s, 2 Mb/s
• -100 dBm RX Sensitivity; TX Output Power up to 3.5 dBm
• Hardware Assisted MAC (Auto-Acknowledge, Auto-Retry)
• 32 Bit IEEE 802.15.4 Symbol Counter
• SFD-Detection, Spreading; De-Spreading; Framing ; CRC-16 Computation
• Antenna Diversity and TX/RX control / TX/RX 128 Byte Frame Buffer
• Phase measurement support
• PLL synthesizer with 5 MHz and 500 kHz channel spacing for 2.4 GHz ISM Band
• Hardware Security (AES, True Random Generator)
• Integrated Crystal Oscillators (32.768 kHz & 16 MHz, external crystal needed)
• I/O and Package
• 38 Programmable I/O Lines
• 64-pad QFN (RoHS/Fully Green)
• Temperature Range: -40°C to 125°C Industrial
• Ultra Low Power consumption (1.8 to 3.6V) for AVR & Rx/Tx: 10.1mA/18.6 mA
• CPU Active Mode (16MHz): 4.1 mA
• 2.4GHz Transceiver: RX_ON 6.0 mA / TX 14.5 mA (maximum TX output power)
• Deep Sleep Mode: <700nA @ 25°C
• Speed Grade: 0 – 16 MHz @ 1.8 – 3.6V range with integrated voltage regulators

Typical applications

• General Purpose 2.4GHz ISM Band Transceiver with Microcontroller/ ZigBee® / IEEE 802.15.4-2011/2006/2003™ – Full and Reduced Function Device/ RF4CE, SP100, WirelessHART™, ISM Applications and IPv6 / 6LoWPAN

More information

• Datasheet
• IC product information