1
42073BS-MCU Wireless-09/14
ATmega2564/1284/644
RFR2
8-bit
Microcontroller
with Low Power
2.4GHz
Transceiver for
ZigBee and
IEEE 802.15.4
ATmega2564RFR2
ATmega1284RFR2
ATmega644RFR2
42073BS-MCU Wireless-09/14
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
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
- 33 Programmable I/O Lines
- 48-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
Applications
ZigBee
®
/ IEEE 802.15.4-2011/2006/2003 – Full and Reduced Function Device
General Purpose 2.4GHz ISM Band Transceiver with Microcontroller
RF4CE, SP100, WirelessHART, ISM Applications and IPv6 / 6LoWPAN
2
42073BS-MCU Wireless-09/14
ATmega2564/1284/644RFR2
1 Pin Configurations
Figure 1-1. Pinout ATmega2564/1284/644RFR2
PF2:ADC2:DIG2
PF1:ADC1
PF0:ADC0
AVDD
EVDD
AVSS:ASVSS
XTAL1
XTAL2
PE7:ICP3:INT7:CLKO
PE5:OC3C:INT5
PE4:OC3B:INT4
PE3:OC3A:AIN1
48
47
46
45
44
43
42
41
40
39
38
37
PF3/4:ADC3/4:TCK:DIG4
1 36
PE2:XCK0:AIN0
PF5:ADC5:TMS
2 35
PE1:TXD0
PF6:ADC6:TDO
3 34
PE0:RXD0:PCINT8
PF7:ADC7:TDI
4
ATmega2564/1284/644RFR2
33
PB7:OC0A:OC1C:PCINT7
AVSS_RFP
5
32
PB6:OC1B:PCINT6
RFP
6
QFN 48
31
PB5:OC1A:PCINT5
RFN
7
30
PB4:OC2A:PCINT4
AVSS_RFN
8
7x7 mm
29
PB3:MISO:PDO:PCINT3
TST
9 28
PB2:MOSI:PDI:PCINT2
RSTN
10
27
PB1:SCK:PCINT1
PG1:DIG1
11
26
PB0:SSN:PCINT0
PG3:TOSC2
12
25
CLKI
13
14
15
16
17
18
19
20
21
22
23
24
PG4:TOSC1
DVSS:DSVSS
DVDD
DEVDD
PD0:SCL:INT0
PD1:SDA:INT1
PD2:RXD1:INT2
PD3:TXD1:INT3
PD4:ICP1
PD5:XCK1
PD6:T1
PD7:T0
Note:
The large center pad underneath the QFN/MLF package is made of metal and internally connected
to AVSS. It should be soldered or glued to the board to ensure good mechanical stability. If the
center pad is left unconnected, the package might loosen from the
board. It is not recommended to
use the exposed paddle as a replacement of the regular AVSS pins.
2 Disclaimer
Typical values contained in this datasheet are based on simulation and characterization
results of other AVR microcontrollers and radio transceivers manufactured in a similar
process technology. Minimum and Maximum values will be available after the device is
characterized.
3
42073BS-MCU Wireless-09/14
ATmega2564/1284/644
RFR2
3 Overview
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.
3.1 Block Diagram
Figure 3-1 Block Diagram
The AVR core combines a rich instruction set with 32 general purpose working
registers. All 32 registers are directly connected to the Arithmetic Logic Unit (ALU). Two
independent registers can be accessed with one single instruction executed in one
clock cycle. The resulting architecture is very code efficient while achieving throughputs
up to ten times faster than conventional CISC microcontrollers. The system includes
internal voltage regulation and an advanced power management. Distinguished by the
small leakage current it allows an extended operation time from battery.
The radio transceiver is a fully integrated ZigBee solution using a minimum number of
external components. It combines excellent RF performance with low cost, small size
and low current consumption. The radio transceiver includes a crystal stabilized
fractional-N synthesizer, transmitter and receiver, and full Direct Sequence Spread

ATMEGA644RFR2-ZU

Mfr. #:
Manufacturer:
Microchip Technology / Atmel
Description:
RF Microcontrollers - MCU 2.4GHZ 802.15.4 64K SOC 48pin
Lifecycle:
New from this manufacturer.
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