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| PartNumber | SI1033-B-GM3 | SI1033-B-GM3R | SI1033 |
| Description | RF Microcontrollers - MCU 16kB, 4kB RAM, +20dBm, programmable XCVR, DC-DC buck | RF Microcontrollers - MCU 16kB, 4kB RAM, +20dBm, programmable XCVR, DC-DC buck | |
| Manufacturer | Silicon Laboratories | Silicon Laboratories | Silicon Labs |
| Product Category | RF Microcontrollers - MCU | RF Microcontrollers - MCU | RF Transceiver ICs |
| RoHS | Y | Y | - |
| Packaging | Tray | Reel | Tray |
| Brand | Silicon Labs | Silicon Labs | - |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | RF Microcontrollers - MCU | RF Microcontrollers - MCU | - |
| Factory Pack Quantity | 480 | 2500 | - |
| Subcategory | Wireless & RF Integrated Circuits | Wireless & RF Integrated Circuits | - |
| Series | - | - | - |
| Type | - | - | TxRx + MCU |
| Package Case | - | - | 85-VFLGA Exposed Pad |
| Frequency | - | - | 240MHz ~ 960MHz |
| Operating Temperature | - | - | -40°C ~ 85°C |
| Sensitivity | - | - | -121dBm |
| Voltage Supply | - | - | 1.8 V ~ 3.8 V |
| Memory Size | - | - | 16kB Flash, 4.4kB RAM |
| Protocol | - | - | EZRadioPro |
| Data Rate Max | - | - | 256kbps |
| Serial Interfaces | - | - | I2C, SPI, UART |
| Power Output | - | - | 20dBm (Max) |
| Current Receiving | - | - | 18.5mA |
| RF Family Standard | - | - | General ISM |
| Modulation | - | - | FSK, GFSK, OOK |
| GPIO | - | - | 53 |
| Current Transmitting | - | - | 85mA |