[Chip]：LLCC68
[Working frequency]：410MHz～493MHz
[Transmit power]：22dBm
[Distance]：6km
[Size]：10*10*2.5mm
[Weight]：0.5g±0.02g
[Introduction]：E220-400MM22S is an ultra-small volume independently developed based on a new generation of LoRaTM RF chip LLCC68 produced by Semtech, and is suitable for 433MHz, 470MHz SMD LoRaTM wireless modules, using industrial grade 32MHz crystal oscillator
| Hardware Parameters | Parameter Value | Remark |
| Crystal oscillation frequency | 32MHz | - |
| Package - | SMD | - |
| Connector | stamp hole | Spacing 1.27mm |
| Communication interface | SPI | 0-10Mbps |
| Size | 10* 10*2.5 mm | With shield |
| Net weight | 0.5g±0.02g | |
| RF interface | stamp hole | - |
| Main Parameter | Performance | Remark | |||
| Min. | Type | Max. | |||
| Operating voltage（V） | 1.8 | 3.3 | 3.7 | ≥3.3V can guarantee the output power, more than 3.7V will permanently burn the module | |
| Communication level（V） | - | 3.3 | - | Risk of burnout with 5V TTL | |
| Operating temperature（°C） | -40 | +85 | Industrial grade design | ||
| power consumption | TX current （mA） | - | 100 | - | Instantaneous power consumption |
| RX current （mA） | - | 10 | - | - | |
| Sleep current （uA） | - | 1.2 | - | software shutdown | |
| RF Parameter | Parameter Value | Remark | |
| Operating frequency | 410MHz～493MHz | Support ISM | |
| Transmit power | 21dBm～22dBm | The software is adjustable and needs to be developed and set by | |
| Receiving sensitivity | -129dBm | BW_L=250kHz，SF = 10，LORATM | |
| FIFO | 256Byte | Maximum length of single transmission | |
| Modulation mode LoRa | LoRa | LoRa modulation is recommended | |
| Blocking power | 10dBm | The probability of burning at close range is small | |
| Air rate LoRa | LoRa（bps） | 1.76k～62.5k | User programming control |
| Reference distance | 5500m | Clear and open environment, antenna gain 5dBi, antenna height | |