| Part Number | SI1061-A-GMR | SI1031-A-GMR | 
|---|---|---|
| Manufacturer | Silicon Labs | Silicon Labs | 
| Category | RF Transceiver ICs | RF Transceiver ICs | 
|   |   | |
| Product Status | Active | Obsolete | 
| Type | TxRx + MCU | TxRx + MCU | 
| RF Family/Standard | General ISM < 1GHz | General ISM < 1GHz | 
| Protocol | - | EZRadioPro | 
| Modulation | 4FSK, 4GFSK, FSK, GFSK, OOK | FSK, GFSK, OOK | 
| Frequency | 142MHz ~ 1.05GHz | 240MHz ~ 960MHz | 
| Data Rate (Max) | 1Mbps | 256Kbps | 
| Power - Output | 20dBm | 20dBm (Max) | 
| Sensitivity | -126dBm | -121dBm | 
| Memory Size | 32kB Flash, 4kB RAM | 64kB Flash, 8.5kB RAM | 
| Serial Interfaces | I²C, SPI, UART | I²C, SPI, UART | 
| GPIO | 15 | 53 | 
| Voltage - Supply | 1.8V ~ 3.6V | 1.8V ~ 3.8V | 
| Current - Receiving | 10.7mA ~ 13.7mA | 18.5mA | 
| Current - Transmitting | 70mA ~ 85mA | 85mA | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 36-WFQFN Exposed Pad | 85-VFLGA Exposed Pad | 
| Supplier Device Package | 36-QFN (5x6) | 85-LGA (6x8) |