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| PartNumber | RN4678-V/RM100 | RN4677-V/RM100 | RN4678-V/RM111 |
| Description | Bluetooth Modules (802.15.1) BT4.2 Dual Mode with Shield & Antenna Module with ASCII Interface | Bluetooth Modules (802.15.1) Bluetooth 4.0 Dual-Mode Module | |
| Manufacturer | Microchip | Microchip | - |
| Product Category | Bluetooth Modules (802.15.1) | Bluetooth Modules (802.15.1) | - |
| RoHS | Y | Y | - |
| Class | Bluetooth Low Energy (BLE), Class 2 | Bluetooth Low Energy (BLE), Class 2 | - |
| Protocol | Bluetooth 4.2 | Bluetooth 4.0 | - |
| Data Rate | 1 Mb/s | 3 Mb/s | - |
| Operating Supply Voltage | 3.3 V to 4.2 V | 3.2 V to 4.3 V | - |
| Output Power | 1.5 dBm | 2 dBm | - |
| Minimum Operating Temperature | - 20 C | - 20 C | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Sensitivity | - 90 dBm | - 90 dBm, - 92 dBm | - |
| Interface Type | I2C, UART | UART | - |
| Series | RN4678 | RN4677 | - |
| Packaging | Tray | Tray | - |
| Antenna | Chip | Integrated | - |
| Dimensions | 22 mm x 12 mm x 2.4 mm | - | - |
| Frequency | 2.4 GHz | 2.4 GHz | - |
| Frequency Range | 2.402 GHz to 2.48 GHz | 2.402 GHz to 2.48 GHz | - |
| Height | 2.4 mm | 2.4 mm | - |
| Length | 22 mm | 22 mm | - |
| Width | 12 mm | 12 mm | - |
| Brand | Microchip Technology | Microchip Technology | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Product Type | Bluetooth Modules | Bluetooth Modules | - |
| Factory Pack Quantity | 88 | 88 | - |
| Subcategory | Wireless & RF Modules | Wireless & RF Modules | - |
| Supply Current Receiving | 37 mA | - | - |
| Supply Current Transmitting | 43 mA | - | - |
| Version | Bluetooth 4.2 | Bluetooth 4.0 | - |
| Unit Weight | 0.176370 oz | 0.148786 oz | - |
| Antenna Connector Type | - | Integrated | - |
| Moisture Sensitive | - | Yes | - |