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| Part Number | RN121-I/RM | RN171-I/RM | RN21-I/RM |
|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology |
| Product Status | Obsolete | Active | Obsolete |
| RF Family/Standard | WiFi | WiFi | Bluetooth |
| Protocol | 802.11b/g | 802.11b/g | Bluetooth v2.1 +EDR, Class 1 |
| Modulation | CDK, DBPSK, DQPSK, DSSS | CCK, DBPSK, DQPSK, DSSS, OFDM | FHSS, GFSK |
| Frequency | 2.4GHz | 2.4GHz | 2.4GHz |
| Data Rate | 54Mbps | 54Mbps | 3Mbps |
| Power - Output | 18dBm | 12dBm | 16dBm |
| Sensitivity | -85dBm | -83dBm | -80dBm |
| Serial Interfaces | SPI, UART | SDIO, SPI, UART | UART |
| Antenna Type | Integrated, Chip + U.FL | Antenna Not Included | Antenna Not Included |
| Utilized IC / Part | - | - | - |
| Memory Size | 4MB Flash, 300kB ROM, 80kB RAM | 2MB ROM, 128kB RAM | 8MB Flash |
| Voltage - Supply | 3.3V | 3V ~ 3.7V | 3V ~ 3.6V |
| Current - Receiving | 40mA | 40mA | 35mA |
| Current - Transmitting | 110mA | 120mA ~ 190mA | 65mA |
| Mounting Type | Through Hole | Surface Mount | Surface Mount |
| Operating Temperature | -30°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Package / Case | 32-DIP Module | Module | Module |
