| Parameters | 
                                
                                                                                                            
                                            | Package / Case | 
                                            44-QFN, 32-QFN | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C~85°C | 
                                        
                                                                            
                                            | Packaging | 
                                            Tray | 
                                        
                                                                            
                                            | Part Status | 
                                            Active | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            3 (168 Hours) | 
                                        
                                                                            
                                            | Type | 
                                            TxRx + MCU | 
                                        
                                                                            
                                            | Max Operating Temperature | 
                                            85°C | 
                                        
                                                                            
                                            | Min Operating Temperature | 
                                            -40°C | 
                                        
                                                                            
                                            | Voltage - Supply | 
                                            1.8V~3.6V | 
                                        
                                                                            
                                            | Frequency | 
                                            2.4GHz | 
                                        
                                                                            
                                            | Base Part Number | 
                                            ATMEGA644P | 
                                        
                                                                            
                                            | Interface | 
                                            I2C, SPI | 
                                        
                                                                            
                                            | Memory Size | 
                                            64kB Flash 2kB EEPROM 4kB RAM | 
                                        
                                                                            
                                            | RAM Size | 
                                            4kB | 
                                        
                                                                            
                                            | Memory Type | 
                                            FLASH | 
                                        
                                                                            
                                            | Data Bus Width | 
                                            8b | 
                                        
                                                                            
                                            | Protocol | 
                                            6LoWPAN, WirelessHART™, Zigbee® | 
                                        
                                                                            
                                            | Core Architecture | 
                                            AVR | 
                                        
                                                                            
                                            | Power - Output | 
                                            3dBm | 
                                        
                                                                            
                                            | RF Family/Standard | 
                                            802.15.4, General ISM > 1GHz | 
                                        
                                                                            
                                            | Sensitivity | 
                                            -101dBm | 
                                        
                                                                            
                                            | Data Rate (Max) | 
                                            2Mbps | 
                                        
                                                                            
                                            | Serial Interfaces | 
                                            SPI | 
                                        
                                                                            
                                            | Current - Receiving | 
                                            10.3mA~12.3mA | 
                                        
                                                                            
                                            | Current - Transmitting | 
                                            7.4mA~14mA | 
                                        
                                                                            
                                            | Modulation | 
                                            O-QPSK | 
                                        
                                                                            
                                            | Sensitivity (dBm) | 
                                            -101 dBm | 
                                        
                                                                            
                                            | Number of GPIO | 
                                            32 | 
                                        
                                                                            
                                            | GPIO | 
                                            32 | 
                                        
                                                                            
                                            | RoHS Status | 
                                            ROHS3 Compliant | 
                                        
                                                                                                    
                            
                         
                                                ATMEGA644PR231-MU Overview
Save RF transceiver IC's board space with 44-QFN, 32-QFN package. With transceiver RF's  high reliability and efficiency, this emerges as a TxRx + MCU.High reliability is achieved with advanced transceiver RF' packaging Tray.Try searching with ATMEGA644P if you're looking for variants.As a result, RF transceiver operates in accordance wRF transceiverh the frequency of 2.4GHz.
ATMEGA644PR231-MU Features
44-QFN, 32-QFN package
TxRx + MCU 
 Tray is used
Use ATMEGA644P
ATMEGA644PR231-MU Applications
There are a lot of Microchip Technology ATMEGA644PR231-MU RF Transceiver ICs applications. 
- Health care
 - Digital Remote
 - Internet Radio
 - Medical
 - Power management
 - Home and Security
 - Industrial and Data Logger
 - Secure Payment
 - Remote Control
 - LED Lighting