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| Part Number | EM357-IRT | EM357-ZRT | EM357-RT |
|---|---|---|---|
| Manufacturer | Silicon Labs | Silicon Labs | Silicon Labs |
| Product Status | Not For New Designs | Not For New Designs | Not For New Designs |
| Type | TxRx + MCU | TxRx + MCU | TxRx + MCU |
| RF Family/Standard | 802.15.4 | 802.15.4 | 802.15.4 |
| Protocol | Zigbee® | Zigbee® | Zigbee® |
| Modulation | O-QPSK | O-QPSK | O-QPSK |
| Frequency | 2.4GHz | 2.4GHz | 2.4GHz |
| Data Rate (Max) | - | 5Mbps | 5Mbps |
| Power - Output | 8dBm | 8dBm | 8dBm |
| Sensitivity | -102dBm | -102dBm | -102dBm |
| Memory Size | 192kB Flash, 12kB RAM | 192kB Flash, 12kB RAM | 192kB Flash, 12kB RAM |
| Serial Interfaces | I²C, JTAG, SPI, UART | I²C, JTAG, SPI, UART | I²C, JTAG, SPI, UART |
| GPIO | 24 | - | 24 |
| Voltage - Supply | 2.1V ~ 3.6V | 2.1V ~ 3.6V | 2.1V ~ 3.6V |
| Current - Receiving | 22mA ~ 28.5mA | 22mA ~ 28.5mA | 22mA ~ 28.5mA |
| Current - Transmitting | 21.5mA ~ 43.5mA | 21.5mA ~ 43.5mA | 21.5mA ~ 43.5mA |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 48-VFQFN Exposed Pad | 48-VFQFN Exposed Pad | 48-VFQFN Exposed Pad |
| Supplier Device Package | 48-QFN (7x7) | 48-QFN (7x7) | 48-QFN (7x7) |
