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| PartNumber | BC51E129B14-ES-IYH-E4 | BC51E129B14-IKH-E4S | BC51E129B14-IYH-E4 |
| Description | IC RF TXRX+MCU BLUETOOTH 67WLCSP | ||
| Manufacturer | - | - | CSR PLC |
| Product Category | - | - | RF Transceiver ICs |
| Series | - | - | BlueCoreR |
| Type | - | - | TxRx + MCU |
| Packaging | - | - | Digi-ReelR Alternate Packaging |
| Package Case | - | - | 67-WLCSP |
| Frequency | - | - | 2.4GHz |
| Operating Temperature | - | - | -30°C ~ 85°C |
| Sensitivity | - | - | - |
| Voltage Supply | - | - | 1.8 V ~ 3.6 V |
| Memory Size | - | - | 48kB RAM |
| Protocol | - | - | Bluetooth v2.1 +EDR, Class 2 and 3 |
| Data Rate Max | - | - | 3Mbps |
| Serial Interfaces | - | - | - |
| Power Output | - | - | 6dBm |
| Current Receiving | - | - | - |
| RF Family Standard | - | - | Bluetooth |
| Modulation | - | - | - |
| GPIO | - | - | |
| Current Transmitting | - | - | - |