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| PartNumber | BC57E687 | BC57E687B-ITB-E4 | BC57E687B-ITB-E4CT-ND |
| Description | IC RF TXRX+MCU BLUTOOTH 169TFBGA | ||
| Manufacturer | CSR | CSR PLC | - |
| Product Category | IC Chips | 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 | - | - | - |