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| PartNumber | BGM123N256V1 | BGM123N256V1R | BGM123N256V2 |
| Description | Bluetooth Modules (802.15.1) | Bluetooth Modules (802.15.1) | MOD BLUETOOTH SIP BGM121 |
| Manufacturer | Silicon Laboratories | Silicon Laboratories | - |
| Product Category | Bluetooth Modules (802.15.1) | Bluetooth Modules (802.15.1) | - |
| RoHS | Y | Y | - |
| Class | Bluetooth Low Energy (BLE) | Bluetooth Low Energy (BLE) | - |
| Protocol | Bluetooth 4.2 | Bluetooth 4.2 | - |
| Data Rate | 1 Mb/s | - | - |
| Operating Supply Voltage | 1.85 V to 3.8 V | - | - |
| Output Power | 3 dBm | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Sensitivity | - 91 dBm | - | - |
| Interface Type | I2C, UART, USART | - | - |
| Series | BGM123 | BGM123 | - |
| Antenna | Integrated | - | - |
| Frequency | 2.4 GHz | 2.4 GHz | - |
| Height | 1.4 mm | - | - |
| Length | 6.5 mm | - | - |
| Width | 6.5 mm | - | - |
| Brand | Silicon Labs | Silicon Labs | - |
| Antenna Connector Type | Integrated | - | - |
| Moisture Sensitive | Yes | - | - |
| Product Type | Bluetooth Modules | Bluetooth Modules | - |
| Subcategory | Wireless & RF Modules | Wireless & RF Modules | - |
| Supply Current Receiving | 8.7 mA | - | - |
| Supply Current Transmitting | 8.2 mA | - | - |
| Version | Bluetooth 4.2 | Bluetooth 4.2 | - |
| Packaging | - | Reel | - |
| Factory Pack Quantity | - | 1000 | - |