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| Part Number | ATSAMR21E18A-MF | ATSAMR21E18A-MU | ATSAMR21E18A-MFT | ATSAMR21G18A-MF | ATSAMR21E16A-MF | ATSAMR21E17A-MF |
|---|---|---|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Product Status | Active | Active | Active | Active | Active | Active |
| Type | TxRx + MCU | TxRx + MCU | TxRx + MCU | TxRx + MCU | TxRx + MCU | TxRx + MCU |
| RF Family/Standard | General ISM > 1GHz | General ISM > 1GHz | General ISM > 1GHz | General ISM < 1GHz | General ISM > 1GHz | 802.15.4, General ISM > 1GHz |
| Protocol | - | - | - | - | - | - |
| Modulation | O-QPSK | O-QPSK | O-QPSK | O-QPSK | O-QPSK | O-QPSK |
| Frequency | 2.4GHz | 2.4GHz | 2.4GHz | 2.4GHz | 2.4GHz | 2.4GHz |
| Data Rate (Max) | 250kbps | 250kbps | 250kbps | 250kbps | 250kbps | 250kbps |
| Power - Output | 4dBm | 4dBm | 4dBm | 4dBm | 4dBm | 4dBm |
| Sensitivity | -99dBm | -99dBm | -99dBm | -99dBm | -99dBm | -99dBm |
| Memory Size | 256kB Flash, 32kB SRAM | 256kB Flash, 32kB SRAM | 256kB Flash, 32kB SRAM | 256kB Flash, 32kB SRAM | 64kB Flash, 8kB SRAM | 128kB Flash, 16kB SRAM |
| Serial Interfaces | I²C, SPI, UART, USART, USB | I²C, SPI, UART, USART, USB | I²C, SPI, UART, USART, USB | I²C, SPI, UART, USART, USB | I²C, SPI, UART, USART, USB | I²C, SPI, UART, USART, USB |
| GPIO | 16 | 16 | 16 | 28 | 16 | 16 |
| Voltage - Supply | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 3.6V |
| Current - Receiving | 11.3mA ~ 11.8mA | 11.3mA ~ 11.8mA | 11.3mA ~ 11.8mA | 11.3mA ~ 11.8mA | 11.3mA ~ 11.8mA | 11.3mA ~ 11.8mA |
| Current - Transmitting | 7.2mA ~ 13.8mA | 7.2mA ~ 13.8mA | 7.2mA ~ 13.8mA | 7.2mA ~ 13.8mA | 7.2mA ~ 13.8mA | 7.2mA ~ 13.8mA |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 85°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 48-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad |
| Supplier Device Package | 32-QFN (5x5) | 32-QFN (5x5) | 32-QFN (5x5) | 48-QFN (7x7) | 32-QFN (5x5) | 32-QFN (5x5) |
