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| Part Number: | EFR32BG1B232F128GM32-B0R | 
| Category: | RF/IF and RFID | 
| Subcategory: | RF Transceiver ICs | 
| Manufacturer: | Silicon Labs | 
| Packaging: | Tape & Reel (TR) | 
| Product Status: | Discontinued at Digi-Key | 
| Type: | TxRx + MCU | 
| RF Family/Standard: | Bluetooth | 
| Protocol: | Bluetooth v4.0 | 
| Modulation: | 2FSK, 4FSK, DSSS, GFSK, GMSK, MSK, O-QPSK | 
| Frequency: | 2.4GHz | 
| Data Rate (Max): | 2Mbps | 
| Power - Output: | 10.5dBm | 
| Sensitivity: | -99.2dBm | 
| Memory Size: | 128kB Flash, 32kB RAM | 
| Serial Interfaces: | I²C, UART, USART | 
| GPIO: | 16 | 
| Voltage - Supply: | 1.85V ~ 3.8V | 
| Current - Receiving: | 8.7mA | 
| Current - Transmitting: | 8.8mA ~ 133mA | 
| Operating Temperature: | -40°C ~ 85°C | 
| Mounting Type: | Surface Mount | 
| Package / Case: | 32-VFQFN Exposed Pad | 
| Supplier Device Package: | 32-QFN (5x5) |