[IC] : -
[Frequency] : 425~440.75MHz
[Power] : 12.5dBm
[Distance] : 1.0km
[Interface] : UART
[Introduction] : The E43-433T13S3 is a super cost-effective wireless data transmission module manufactured by Chengdu Ebyte. It has four working modes and two transmission modes. Each transmission modes have their own characteristics, which can be applied to various application scenarios.
| RF Parameter | Value | Remark |
| Working frequency | 425~440.75 MHz | Support ISM band |
| Transmitting power | 12.5 dBm | - |
| Receiving sensitivity | -126 dBm | Air data rate is 2.4kbps |
| Air data rate | 1.2k~9.6kbps | User Programming Control |
| Test distance | 1000m | Test condition：clear and open area, antenna gain: 5dBi，air data rate:1.2kbps |
| Hardware Parameter | Value | Remark |
Size | 16 * 26 mm | - |
Antenna type | IPEX / Stamp hole | 50 ohm impedance |
Communication interface | UART | - |
Package | SMD | - |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
| Power supply | 1.8 | 5 | 5.5 | V | - |
| Communication level | - | 3.3 | - | V | For 5V TTL, it may be at risk of burning down |
| Transmitting current | - | 27 | - | mA | Instant power consumption |
| Receiving current | - | 13 | - | mA | - |
| Sleep current | - | 2 | - | nA | Software is shut down |
| Operating temperature | -40 | - | +85 | ℃ | Industrial design |
| Operating humidity | 10 | - | 90 | % | - |
| Storage temperature | -40 | - | +125 | ℃ | - |
| Pin No. | Pin Item | Pin Direction | Pin Application |
| 1 | GND | - | Ground |
| 2 | GND | - | Ground |
| 3 | GND | - | Ground |
| 4 | GND | - | Ground |
| 5 | M0 | Input (weak pull-up) | Work with M1 & decide the four operating modes; Floating is not allowed, can be ground. |
| 6 | M1 | Input (weak pull-up) | Work with M0 & decide the four operating modes; Floating is not allowed, can be ground. |
| 7 | RXD | Input | TTL UART inputs, connects to external TXD output pin; Can be configured as open-drain or pull-up input. |
| 8 | TXD | Output | TTL UART outputs, connects to external RXD input pin Can be configured as open-drain or push-pull output. |
| 9 | AUX | Output | To wake 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. |
| 10 | VCC | - | Voltage positive reference of module; Power supply 2.3V ~ 5.2V DC |
| 11 | GND | - | Ground |
| 12 | NC | - | - |
| 13 | GND | - | Ground |
| 14 | NC | - | - |
| 15 | NC | - | - |
| 16 | NC | - | - |
| 17 | NC | - | - |
| 18 | NC | - | - |
| 19 | GND | - | Ground |
| 20 | GND | - | Ground |
| 21 | ANT | - | Antenna |
| 22 | GND | - | Ground |
| Order online |
| 【eBay】：https://www.ebay.com/usr/cdebyte |
| 【Aliexpress】：https://www.aliexpress.com |
| 【amazon】：https://www.amazon.co.uk |
| 【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 |
| Model | IC | Interface | Frequency Hz | Power dBm | Distance km | Air Rate(bps) | Package | Size (mm) | Feature | Manual | Sample |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E43-433T13S3 | UART | - | 433M | 12.5 | 1.0 | 1.2k~9.6k | SMD | 16 * 26 | Small size, cost effective | ||
| E43-900T13S3 | UART | - | 868M 915M | 13 | 1.5 | 1.2k~9.6k | SMD | 16 * 26 | Small size, cost effective | ||
| E43-433T13S | UART | - | 433M | 13 | 0.65 | 1.2k~9.6k | SMD | 18.5*13 | Small size,cost effective |
