| Part Number | ATMEGA256RFR2-ZU | ATMEGA256RFR2-ZUR | 
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | 
| Category | RF Transceiver ICs | RF Transceiver ICs | 
|   |   | |
| Product Status | Active | Active | 
| Type | TxRx + MCU | TxRx + MCU | 
| RF Family/Standard | 802.15.4 | 802.15.4 | 
| Protocol | Zigbee® | Zigbee® | 
| Modulation | DSSS, O-QPSK | DSSS, O-QPSK | 
| Frequency | 2.4GHz | 2.4GHz | 
| Data Rate (Max) | 2Mbps | 2Mbps | 
| Power - Output | 3.5dBm | 3.5dBm | 
| Sensitivity | -100dBm | -100dBm | 
| Memory Size | 256kB Flash, 8kB EEPROM, 32kB SRAM | 256kB Flash, 8kB EEPROM, 32kB SRAM | 
| Serial Interfaces | I²C, JTAG, SPI, USART | I²C, JTAG, SPI, USART | 
| GPIO | 35 | 35 | 
| Voltage - Supply | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 
| Current - Receiving | 5mA ~ 12.5mA | 5mA ~ 12.5mA | 
| Current - Transmitting | 8mA ~ 14.5mA | 8mA ~ 14.5mA | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 64-VFQFN Exposed Pad | 64-VFQFN Exposed Pad | 
| Supplier Device Package | 64-QFN (9x9) | 64-QFN (9x9) |