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| PartNumber | BC57E687B-ITB-E4 | BC57E687B-ITB-E4CT-ND | BC57E687B/C |
| Description | IC RF TXRX+MCU BLUTOOTH 169TFBGA | ||
| Manufacturer | CSR PLC | - | - |
| Product Category | RF Transceiver ICs | - | - |
| Series | BlueCoreR | - | - |
| Type | TxRx + MCU | - | - |
| Packaging | Cut Tape (CT) | - | - |
| Package Case | 169-TFBGA | - | - |
| Frequency | 2.4GHz | - | - |
| Operating Temperature | - | - | - |
| Sensitivity | - | - | - |
| Voltage Supply | 1.8 V ~ 3.6 V | - | - |
| Memory Size | 8MB ROM, 48kB RAM | - | - |
| Protocol | Bluetooth v2.1 +EDR, Class 2 and 3 | - | - |
| Data Rate Max | 3Mbps | - | - |
| Serial Interfaces | - | - | - |
| Power Output | 8dBm | - | - |
| Current Receiving | - | - | - |
| RF Family Standard | Bluetooth | - | - |
| Modulation | - | - | - |
| GPIO | - | - | |
| Current Transmitting | - | - | - |