 |  | | |
| PartNumber | WT21-A | WT21-A-HCI | WT21-N-HCI |
| Description | RF TXRX MOD BLUETOOTH CHIP ANT | Bluetooth Modules (802.15.1) WT21 HCI Modulem No Ant | |
| Manufacturer | Silicon Labs | Silicon Labs | - |
| Product Category | RF Transceiver Modules | RF Transceiver Modules | - |
| Series | - | - | - |
| Packaging | Cut Strip | Cut Strip | - |
| Package Case | Module | Module | - |
| Frequency | 2.4GHz | 2.4GHz | - |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | - |
| Mounting Type | Surface Mount | Surface Mount | - |
| Sensitivity | -87dBm | -87dBm | - |
| Voltage Supply | 1.8 V ~ 3.6 V | 1.8 V ~ 3.6 V | - |
| Memory Size | - | - | - |
| Protocol | Bluetooth v2.1 + EDR | Bluetooth v2.1 + EDR | - |
| Data Rate | 3Mbps | 3Mbps | - |
| Serial Interfaces | PIO, SDIO, SPI, UART | PIO, SDIO, SPI, UART | - |
| Power Output | 6dBm | 6dBm | - |
| Current Receiving | - | - | - |
| RF Family Standard | Bluetooth | Bluetooth | - |
| Modulation | - | - | - |
| Current Transmitting | - | - | - |
| Antenna Type | Integrated, Chip | Integrated, Chip | - |