8

42073BS-MCU Wireless-09/14

ATmega2564/1284/644RFR2

3.4.5 Port G2

The port G2 is not connected to a pin in the ATmega2564/1284/644RFR2. The

alternate pin function AMR (asynchronous automated meter reading input to timer 2) is

not available.

3.4.6 Port G5

The port G5 is not connected to a pin in the ATmega2564/1284/644RFR2. The

alternate pin function OC0B (output compare channel of 8-Bit timer 0) is not available.

3.4.7 RSTON

The RSTON reset output signaling the internal reset state is not connected to a pin in

the ATmega2564/1284/644RFR2.

3.5 Configuration summary

According to the application requirements a variable memory size allows to optimize

current consumption and leakage current.

Table 3-1 Memory Configuration

Device

Flash

EEPROM

SRAM

ATmega2564RFR2

256KB

8KB

32KB

ATmega1284RFR2

128KB

4KB

16KB

ATmega644RFR2

64KB

2KB

8KB

Package and associated pin configuration are the same for all devices providing full

functionality to the application.

Table 3-2 System Configuration

Device

Package

GPIO

Serial IF

ADC channel

ATmega2564RFR2

QFN48

33

2 USART, SPI, TWI

7

ATmega1284RFR2

QFN48

33

2 USART, SPI, TWI

7

ATmega644RFR2

QFN48

33

2 USART, SPI, TWI

7

The devices are optimized for applications based on the ZigBee and the IEEE 802.15.4

specification. Having application stack, network layer, sensor interface and an excellent

power control combined in a single chip many years of operation should be possible.

Table 3-3 Application Profile

Device

Application

ATmega2564RFR2

Large Network Coordinator / Router for IEEE 802.15.4 / ZigBee Pro

ATmega1284RFR2

Network Coordinator / Router for IEEE 802.15.4

ATmega644RFR2

End node device / network processor