[IC]:-
[Frequency]:425~450.5MHz
[Power]:20dBm
[Distance]:1.5km
[Interface]:UART
[introduction]:E64-433T20S is applicable for star network with low power consumption. The biggest feature is to support at most 31 slaves send data to master at the same time and WOR mode for slaves(the average current is below 30uA). Data reliability and accuracy are guaranteed by strict data parity and automatic retransmission mechanism between master and slave.
| RF Parameter | Value | Remark |
| Working frequency | 425~450.5 MHz | Default: 433MHz |
| Transmitting power | 10~20 dBm | Default: 20dBm（About 100mW） |
| Receiving sensitivity | -121 dBm | Air data rate: 8kbps |
| Air data rate | 2k~20kbps | Default: 8kbps |
| Test distance | 1500m | In open and clear air, with maximum power, 5dBi antenna gain, height of 2m, air data rate: 8kbps |
| Hardware Parameter | Value | Remark |
Size | 17 * 30 mm | |
Antenna type | IPEX/external/spring | |
Communication interface | UART | Baud rate: 1200~115200, default: 9600 |
Package | SMD | |
Buffer | 512 bytes buffer | Automatically sub-packaging with 55 bytes per package |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
| Power supply | 2.3 | 5.0 | 5.2 | V | |
| Communication level | 2.5 | 3.3 | 3.6 | V | |
| Transmitting current | 82 | 89 | 98 | mA | 20dBm（100mW） |
| Receiving current | 15 | 16 | 18 | mA | |
| Sleep current | 3 | 4 | 5 | μA | |
| Operating temperature | -40 | 20 | +85 | ℃ | |
| Operating humidity | 10 | 60 | 90 | % | |
| Storage temperature | -40 | 20 | +125 | ℃ |
| Pin No. | Pin Item | Pin Direction | Pin Application |
| 1 | M0 | Input （weak pull-up） | Work with M1 & decide the four operating modes. (Floating is not allowed, can be ground) |
| 2 | M1 | Input （weak pull-up） | Work with M0 & decide the four operating modes. (Floating is not allowed, can be ground) |
| 3 | RXD | Input | TTL UART inputs, connects to external (MCU, PC) TXD output pin. Can be configured as open-drain or pull-up input. |
| 4 | TXD | Output | TTL UART outputs, connects to external RXD (MCU,PC) input pin. Can be configured as open-drain or push-pull output |
| 5 | AUX | Output | To indicate module's working status & wakes up the external MCU. During the procedure of self-check initialization, the pin outputs low level. Can be configured as open-drain output or push-pull output. (Floating is allowed) |
| 6 | VCC | Input | Power supply 2.1V~5.5V DC |
| 7 | GND | Input | Ground electrode |
| 8 | ANT | Output | Reference places of high frequency signal output |
| 9 | GND | Input/Output | Antenna interface（ high frequencysignal output） |
| 10 | GND | Input | Ground electrode |
| 11 | GND | Input | Ground electrode |
| Order online |
| 【Aliexpress】：https://www.aliexpress.com/store/2798183 |
| 【Alibaba】：https://www.alibaba.com |
| For batch order/customized product |
| 【Sales hotline】：+86-28-61399028 Ext.812 |
| 【E-mail】：service@cdebyte.com |
| Technical support |
| 【Submit online】：http://www.ebyte.com/en/apple-technology.aspx |
| 【E-mail】：support@cdebyte.com |
| 产品 型号 | IC | Interface | Frequency Hz | Power dBm | Distance km | Air Rate(bps) | Package | Size (mm) | Feature | 技术 手册 | 样品 购买 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E64-433T20S | UART | - | 433M | 20 | 1.5 | 2k~20k | SMD | 17*30 | Star network |
