| Part Number | BT121-A-V2 | BT121-A-V1 |
|---|---|---|
| Manufacturer | Silicon Labs | Silicon Labs |
| Category | RF Transceiver Modules and Modems | RF Transceiver Modules and Modems |
|
|
|
| Product Status | Active | Discontinued at Digi-Key |
| RF Family/Standard | Bluetooth | Bluetooth |
| Protocol | Bluetooth v4.2 | Bluetooth v4.1 |
| Modulation | - | - |
| Frequency | 2.4GHz | 2.4GHz |
| Data Rate | 3Mbps | 1Mbps |
| Power - Output | 12dBm | 14dBm |
| Sensitivity | -96dBm | -96dBm |
| Serial Interfaces | I²C, SPI, UART | I²C, SPI, UART |
| Antenna Type | Integrated, Chip | Integrated, Chip |
| Utilized IC / Part | - | - |
| Memory Size | 128kB Flash, 16kB RAM | 128kB Flash, 16kB RAM |
| Voltage - Supply | 2.2V ~ 3.6V | 2.2V ~ 3.6V |
| Current - Receiving | 38.7mA | - |
| Current - Transmitting | 92mA | 85mA ~ 92mA |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Package / Case | 41-SMD Module | 41-SMD Module |