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| PartNumber | SI1031-A-GM | SI1031 | SI1031-A-GMR |
| Description | RF Microcontrollers - MCU | Microcontrollers - MCU RF Microcontrollers - MCU 64kB, 8kB RAM +20dBm, LCD, XCVR | |
| Manufacturer | - | Silicon Labs | Silicon Labs |
| Product Category | - | RF Transceiver ICs | RF Transceiver ICs |
| Series | - | - | - |
| Type | - | TxRx + MCU | TxRx + MCU |
| Packaging | - | Tray | Tape & Reel (TR) |
| Package Case | - | 85-VFLGA Exposed Pad | 85-VFLGA Exposed Pad |
| Frequency | - | 240MHz ~ 960MHz | 240MHz ~ 960MHz |
| Operating Temperature | - | -40°C ~ 85°C | -40°C ~ 85°C |
| Sensitivity | - | -121dBm | -121dBm |
| Voltage Supply | - | 1.8 V ~ 3.8 V | 1.8 V ~ 3.8 V |
| Memory Size | - | 64kB Flash, 8.5kB RAM | 64kB Flash, 8.5kB RAM |
| Protocol | - | EZRadioPro | EZRadioPro |
| Data Rate Max | - | 256kbps | 256kbps |
| Serial Interfaces | - | I2C, SPI, UART | I2C, SPI, UART |
| Power Output | - | 20dBm (Max) | 20dBm (Max) |
| Current Receiving | - | 18.5mA | 18.5mA |
| RF Family Standard | - | General ISM | General ISM |
| Modulation | - | FSK, GFSK, OOK | FSK, GFSK, OOK |
| GPIO | - | 53 | 53 |
| Current Transmitting | - | 85mA | 85mA |