[IC]：ASR6601
[Frequency]：410~490MHz
[Power]：21dBm
[Distance]：5.5km
[Size]：26*16*2.8mm
[Introduction]：E78 series are RF transceiver module of various frequency bands designed and manufactured by Chengdu Ebyte, with long communication distance and extremely low power mode current consumption. It is a small-sized SMD type(pin pitch 1. lmm).
| Parameter | Performance | Remark |
| Frequency | 410~490 MHz | - |
| TX Power | 21 dBm | - |
| Reference distance | 5.5 Km | Lora 1kbps |
| Parameter | Performance | Remark |
| Size | 26*16*2.8 mm | - |
| Antenna | IPEX/Stamp hole | 50 ohm impedance |
| IC | ASR6601SE | - |
| Package | SMD | - |
| Net Weight | 1.9g | - |
| Parameter | Min. | Typ. | Max. | Unit |
| TX current | 105 | 108 | 110 | mA |
| RC current | 8.5 | 8.7 | 11 | mA |
| Sleep current | 1.6 | 1.8 | 1.8 | uA |
| TX power | 20.6 | 20.8 | 21 | dBm |
| Receiving sensitivity | - | -148 | - | dBm |
| TCXO crystal | - | 32 | - | MHz |
| TCXO crystal voltage | 1.8 | 1.8 | 3.3 | V |
| Recommended frequency | 410 | 433/470/490 | 490 | MHz |
| Power supply | 1.7 | 3.3 | 3.7 | V |
| Communication level | 1.7 | 3.3 | 3.7 | V |
| Working Temperature | -40 | - | +85 | ℃ |
| Humidity | 10％ | - | 90％ | - |
| Storage Temperature | -40 | - | +125 | ℃ |
| 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 | NC | - | Reserved |
| 5 | GPIO01 | Input/Output | MCU GPIO |
| 6 | GPIO00 | Input/Output | MCU GPIO |
| 7 | GPIO03 | Input/Output | MCU GPIO |
| 8 | GPIO02 | Input/Output | MCU GPIO |
| 9 | GPIO06 | Input/Output | MCU GPIO |
| 10 | GPIO07 | Input/Output | MCU GPIO |
| 11 | NRST | Input | External reset pin |
| 12 | GPIO14 | Input/Output | MCU GPIO |
| 13 | GPIO15 | Input/Output | MCU GPIO |
| 14 | GPIO23 | Input/Output | MCU GPIO |
| 15 | GPIO25 | Input/Output | MCU GPIO |
| 16 | GPIO24 | Input/Output | MCU GPIO |
| 17 | GPIO27 | Input/Output | MCU GPIO |
| 18 | GPIO26 | Input/Output | MCU GPIO |
| 19 | GPIO29 | Input/Output | MCU GPIO |
| 20 | GND | - | Ground wire, connected to the power reference ground |
| 21 | GPIO28 | Input/Output | MCU GPIO |
| 22 | GPIO30 | Input/Output | MCU GPIO |
| 23 | GPIO31 | Input/Output | MCU GPIO |
| 24 | GPIO62 | Input/Output | MCU GPIO |
| 25 | UART0_RX | Input | MCU GPIO |
| 26 | UART0_TX | Output | MCU GPIO |
| 27 | GPIO60 | Input/Output | MCU GPIO |
| 28 | GPIO58 | Input/Output | MCU GPIO |
| 29 | GPIO13 | Input/Output | MCU GPIO |
| 30 | GPIO12 | Input/Output | MCU GPIO |
| 31 | VCC | - | Power supply, range 2.5V ~ 3.7V (recommended to add external ceramic filter capacitor) |
| 32 | GND | - | Ground wire, connected to the power reference ground |
| 33 | GND | - | Ground wire, connected to the power reference ground |
| 34 | GPIO11 | Input/Output | MCU GPIO |
| 35 | GPIO08 | Input/Output | MCU GPIO |
| 36 | GPIO05 | Input/Output | MCU GPIO |
| 37 | GPIO04 | Input/Output | MCU GPIO |
| 38 | GPIO09 | Input/Output | MCU GPIO |
| 39 | GPIO45 | Input/Output | MCU GPIO |
| 40 | GPIO44 | Input/Output | MCU GPIO |
| 41 | GPIO42 | Input/Output | MCU GPIO |
| 42 | GPIO41 | Input/Output | MCU GPIO |
| 43 | GPIO40 | Input/Output | MCU GPIO |
| 44 | GPIO37 | Input/Output | MCU GPIO |
| 45 | GPIO33 | Input/Output | MCU GPIO |
| 46 | GPIO32 | Input/Output | MCU GPIO |
| 47 | GPIO36 | Input/Output | MCU GPIO |
| 48 | GPIO35 | Input/Output | MCU GPIO |
| 49 | GPIO34 | Input/Output | MCU GPIO |
| 50 | GND | - | Ground wire, connected to the power reference ground |
| 51 | ANT | Output | Antenna interface, stamp hole (50 ohm characteristic impedance) |
| 52 | GND | - | Ground wire, connected to the power reference ground |
| Order online |
| 【eBay】：https://www.ebay.com |
| 【Amazon】：https://www.amazon.co.uk |
| 【Aliexpress】：https://www.aliexpress.com |
| 【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 | Interface | IC | Frequency Hz | Power dBm | Distance km | Air Rate(bps) | Package | Size (mm) | Feature | Manual | Sample |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E78-868LN22S(6601) | SoC | ASR6601 | 868M | 22 | 5.6 | 0.018~62.5k | SMD | 14*20 | standard LoRaWan node module | ||
| E78-470LN22S(6601) | SoC | ASR6601 | 470M | 21 | 5.6 | 0.018~62.5k | SMD | 14*20 | LoRa SoC RF Module | ||
| E78-900TBL-01A | USB | ASR6505 | 850~925M | - | 5.5 | - | - | 70*36 | E78 series module test board | ||
| E78-400M22S1C | SoC | ASR6601 | 470M 433M | 21 | 5.5 | - | SMD | 26*16*2.8 | LoRa Spread Spectrum | ||
| E78-400TBL-01 | USB | - | - | - | - | - | - | 58*28 | E78 series module test board | ||
| E78-400M22S1A | - | ASR6505 | 470M 433M | 21 | 5.5 | - | SMD | 26* 16*2.8 | LoRaWan node module | ||
| E78-868LN22S | - | ASR6501 | 900MHz | 21 | - | - | SMD | 20* 14*2.8 | LoRa RF Module，Wireless Module | ||
| E78-470LN22S | - | ASR6501 | 433M | 22 | 7 | 0.018k~62.5k | SMD | 14*20 | Low consumption, anti-interference |
