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| PartNumber | ATMEGA644PR212-MU | ATMEGA644PR212-AU | ATMEGA644PR231-AU |
| Description | RF Microcontrollers - MCU ATmega 644PV-10MU AT86RF212-ZU | RF Microcontrollers - MCU ATmega 644PV-10AU AT86RF212-ZU | RF Microcontrollers - MCU ATmega 644PV-10AU AT86RF231-ZU |
| Manufacturer | Silicon Laboratories | Silicon Laboratories | Silicon Laboratories |
| Product Category | RF Microcontrollers - MCU | RF Microcontrollers - MCU | RF Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Packaging | Tray | - | - |
| Brand | Silicon Labs | Silicon Labs | Silicon Labs |
| Moisture Sensitive | Yes | Yes | Yes |
| Product Type | RF Microcontrollers - MCU | RF Microcontrollers - MCU | RF Microcontrollers - MCU |
| Factory Pack Quantity | 260 | 416 | 416 |
| Subcategory | Wireless & RF Integrated Circuits | Wireless & RF Integrated Circuits | Wireless & RF Integrated Circuits |
| Unit Weight | 0.007055 oz | - | - |
| Core | - | ARM Cortex M0+ | ARM Cortex M0+ |
| Operating Frequency | - | 142 MHz to 1.05 GHz | 142 MHz to 1.05 GHz |
| Data Bus Width | - | 32 bit | 32 bit |
| Program Memory Size | - | 32 kB | 32 kB |
| Data RAM Size | - | 8 kB | 8 kB |
| Maximum Clock Frequency | - | 25 MHz | 25 MHz |
| ADC Resolution | - | 12 bit | 12 bit |
| Operating Supply Voltage | - | 1.98 V to 3.8 V | 1.98 V to 3.8 V |
| Maximum Operating Temperature | - | + 85 C | + 85 C |
| Package / Case | - | QFN-48 | QFN-48 |
| Mounting Style | - | SMD/SMT | SMD/SMT |
| Program Memory Type | - | Flash | Flash |
| Series | - | EZR32HG | EZR32HG |
| Data RAM Type | - | RAM | RAM |
| Interface Type | - | I2C, SPI, UART, USART, USB | I2C, SPI, UART, USART, USB |
| Number of I/Os | - | 25 I/O | 25 I/O |
| Minimum Operating Temperature | - | - 40 C | - 40 C |
| Number of ADC Channels | - | 8 Channel | 8 Channel |
| Number of Timers | - | 3 x 16 bit | 3 x 16 bit |
| Processor Series | - | EZR32HG320 | EZR32HG320 |
| Supply Voltage Max | - | 3.8 V | 3.8 V |
| Supply Voltage Min | - | 1.98 V | 1.98 V |
| Tradename | - | EZR32 | EZR32 |