Описание
The ATmega128RFR2 is a low-power CMOS 8-bit microcontroller based on theAVR enhanced RISC architecture combined with a high data rate transceiver for the 2.4GHz ISM band.By executing powerful instructions in a single clock cycle, the device achievesthroughputs approaching 1 MIPS per MHz allowing the system designer to optimizepower consumption versus processing speed.The radio transceiver provides high data rates from 250 kb/s up to 2 Mb/s, framehandling, outstanding receiver sensitivity and high transmit output power enabling avery robust wireless communication. The AVR core combines a rich instruction set with 32 general purpose workingregisters. All 32 registers are directly connected to the Arithmetic Logic Unit (ALU). Twoindependent registers can be accessed with one single instruction executed in oneclock cycle. The resulting architecture is very code efficient while achieving throughputsup to ten times faster than conventional CISC microcontrollers. The system includesinternal voltage regulation and an advanced power management. Distinguished by thesmall leakage current it allows an extended operation time from battery.The radio transceiver is a fully integrated ZigBee solution using a minimum number ofexternal components. It combines excellent RF performance with low cost, small sizeand low current consumption. The radio transceiver includes a crystal stabilizedfractional-N synthesizer, transmitter and receiver, and full Direct Sequence SpreadSpectrum Signal (DSSS) processing with spreading and despreading. The device isfully compatible with IEEE802.15.4-2011/2006/2003 and ZigBee standards.The ATmega256/128/64RFR2 provides the following features: 256K/128K/64K Bytes ofIn-System Programmable (ISP) Flash with read-while-write capabilities, 8K/4K/2K BytesEEPROM, 32K/16K/8K Bytes SRAM, up to 35 general purpose I/O lines, 32 generalpurpose working registers, Real Time Counter (RTC), 6 flexible Timer/Counters withcompare modes and PWM, a 32 bit Timer/Counter, 2 USART, a byte oriented 2-wireSerial Interface, a 8 channel, 10 bit analog to digital converter (ADC) with an optionaldifferential input stage with programmable gain, programmable Watchdog Timer withInternal Oscillator, a SPI serial port, IEEE std. 1149.1 compliant JTAG test interface,also used for accessing the On-chip Debug system and programming and 6 softwareselectable power saving modes.
- 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
- 32×8 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
