SI4463 Low Price Rf Transceiver Type Rf Chip Type Chip Type Wireless
[IC]：SI4438
[Frequency]：425～525MHz
[Power]：20dBm
[Distance]：2.5km
[Size]：20*14mm
[Product weight]：1.5±0.1g
[Introduction]：E30-400M20S is a hardware module (SPI) based on the SI4438 RF chip imported from Silicon Labs. It is a half-duplex, SMD integrated transceiver with transparent transmission available. With working frequency band 425～525MHz, transmitting power 100mW, it is suitable for a variety of environments.
| Pin No. | Item | Direction | Description |
|---|---|---|---|
| 1 | GND | - | Ground wire, connected to the power reference ground |
| 2 | GND | - | Ground wire, connected to the power reference ground |
| 3 | GND | - | Ground wire, connected to the power reference ground |
| 4 | GND | - | Ground wire, connected to the power reference ground |
| 5 | GND | - | Ground wire, connected to the power reference ground |
| 6 | GPIO_2 | Output | Configurable universal GPIO port (see SI4463manual for details) |
| 7 | GPIO_3 | Output | Configurable universal GPIO port (see SI4463manual for details) |
| 8 | GPIO_1 | Output | Configurable universal GPIO port (see SI4463manual for details) |
| 9 | VCC | - | Power supply, 2.5~3.6V, 3.3V is recommended (It is also recommended to add external ceramic filter capacitor) |
| 10 | GND | - | Ground wire, connected to the power reference ground |
| 11 | GND | - | Ground wire, connected to the power reference ground |
| 12 | GND | - | Ground wire, connected to the power reference ground |
| 13 | GPIO_0 | Output | Configurable universal GPIO port (see SI4463manual for details) |
| 14 | IRQ | Output | SPI interrupt request |
| 15 | SDN | - | Shutdown Input Pin. It is low level when working(See SI4463 manual for more details) |
| 16 | MISO | Output | SPI master output slave input |
| 17 | MOSI | Input | SPI master input slave output |
| 18 | SCK | Input | Serial Clock Input |
| 19 | NSEL | Input | SPI Chip select for starting SPI communication |
| 20 | GND | - | Ground wire, connected to the power reference ground |
| 21 | ANT | Input/Output | Antena |
| 22 | GND | - | Ground wire, connected to the power reference ground |