[IC]：LLCC68
[Frequency]：410.125~493.125MHz
[Power]：30dBm
[Distance]：10km
[Size]：25*40.5mm
[Product weight]：5.6g±0.1g
[Introduction]：E220-400T30S is a wireless serial port module (UART) based on SEMTECH's LLCC68, working at 410.125～493.125MHz（ default 433.125MHz）, TTL level output, compatible with 3.3V and 5V IO port voltage.
| Main | parameter | Performance | Remark |
|---|---|---|---|
| Operating frequency | 410.125~493.125MHz | Support ISM band | |
| Tx power | 30 dBm | - | |
| Receiving sensitivity | -129dbm | Air data rate: 2.4kbps | |
| Air data rate | 2.4k~62.5kbps | Controlled via user’s programming | |
| Distance for reference | 10Km | Test condition：clear and open area, antenna gain: 5dBi，antenna height: 2.5m，air data rate: 2.4kbps |
| Main parameter | Description | Remark |
|---|---|---|
| Size | 25 * 40.5 mm | |
| Antenna | IPEX/Stamp hole | |
| Communication interface | UART | TTL level |
| Package | SMD |
| Main parameter | Min. | Typ. | Max. | Unit | Remark |
|---|---|---|---|---|---|
| Operating voltage | 3.3 | 5.0 | 5.5 | V | ≥5.0 V ensures output power |
| Communication level | - | 3.3 | - | V | For 5V TTL, it may be at risk of burning down |
| TX current | - | 610 | - | mA | Instant power consumption |
| RX current | - | 17 | - | mA | |
| Sleep current | - | 3 | - | uA | Software is shut down@30dBm |
| Operating temperature | -40 | 20 | +85 | ℃ | Industrial design |
| serial number | pin | Pin direction | Remark |
| 1 | GND | Input | Module ground |
| 2 | VCC | Input | Positive reference of module power supply, voltage range: 3.3～5.5V DC |
| 3 | AUX | output | Used to indicate the working status of the module; the user wakes up the external MCU, and the output is low during the initialization of the power-on self-test Level; (can be suspended) |
| 4 | TXD | output | TTL serial port output, connected to external RXD input pin; |
| 5 | RXD | enter | TTL serial port input, connected to the external TXD output pin; |
| 6 | M1 | Input (very weak pull-up) | Cooperate with M0 to determine the 4 working modes of the module (not floating, if not used, it can be grounded) |
| 7 | M0 | Input (very weak pull-up) | Cooperate with M1 to determine the 4 working modes of the module (not floating, if not used, it can be grounded) |
| 11 | ANT | output | Antenna interface (high frequency signal output, 50 ohm characteristic impedance) |
| 12 | GND | - | Fixedly |
| 13 | GND | - | Fixedly |
| 14 | GND | - | Fixedly |
| 18 | NC | - | Empty feet |
| 19 | NC | - | Empty feet |
| 20 | NC | - | Empty feet |
| 21 | NC | - | Empty feet |
| 22 | RESET | Input | Module reset pin, low level trigger, it is recommended that customers use a single chip microcomputer connection, reset processing and resume work in unexpected situations |
| 23 | GND | - | Fixed ground |
| 24 | NC | - | Empty feet |
