| Part Number | EM351-RT | EM3591-RT |
|---|---|---|
| Manufacturer | Silicon Labs | Silicon Labs |
| Category | RF Transceiver ICs | RF Transceiver ICs |
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| Product Status | Not For New Designs | Not For New Designs |
| Type | TxRx + MCU | TxRx + MCU |
| RF Family/Standard | 802.15.4 | 802.15.4 |
| Protocol | Zigbee® | Zigbee® |
| Modulation | O-QPSK | O-QPSK |
| Frequency | 2.4GHz | 2.4GHz |
| Data Rate (Max) | 5Mbps | 5Mbps |
| Power - Output | 8dBm | 8dBm |
| Sensitivity | -102dBm | -102dBm |
| Memory Size | 128kB Flash, 12kB RAM | 256kB Flash, 32kB RAM |
| Serial Interfaces | I²C, JTAG, SPI, UART | I²C, JTAG, SPI, UART |
| GPIO | 24 | 32 |
| Voltage - Supply | 2.1V ~ 3.6V | 2.1V ~ 3.6V |
| Current - Receiving | 22mA ~ 28.5mA | 23.5mA ~ 29.5mA |
| Current - Transmitting | 21.5mA ~ 43.5mA | 24mA ~ 44mA |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 48-VFQFN Exposed Pad | 56-VFQFN Exposed Pad |
| Supplier Device Package | 48-QFN (7x7) | 56-QFN (8x8) |