[IC] : EFR32
[Frequency] : 2.4~2.48GHz
[Power] : 20dBm
[Distance] : 2.5km
[Introduction] : E76-2G4M20S integrated 32bytes ARM MCU and high performance wireless transceiver.This series of products uses high-precision wide-temperature crystal, 40MHz industrial grade high-precision low-temperature drift active crystal oscillator; to ensure its industrial characteristics and stability.The module brings out all the IO ports of the microcontroller.
| RF Parameter | Value | Remark |
| Working frequency | 2400~2480 MHz | Support ISM band |
| Transmitting power | 20 dBm | About 100mW |
| Receiving sensitivity | -101 dBm | Air data rate is 1kbps |
| Air data rate | 1k~100k | Controlled via user's programming |
| Test distance | 2500m | In open and clear air, with maximum power, 5dBi antenna gain, height of 2m, air data rate: 1kbps |
| Hardware Parameter | Value | Remark |
IC | EFR32FG1P131F256GM48 | - |
FLASH | 256 KB | - |
RAM | 32 KB | - |
Core | ARM Cortex M4 | - |
Size | 17.5 * 28.7 mm | - |
Antenna type | IPEX / PCB | - |
Communication interface | SPI | - |
Package | SMD | - |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
| Power supply | 1.85 | 3.3 | 3.8 | V | ≥3.3V ensures output power |
| Communication level | - | 3.3 | - | V | For 5V TTL, it may be atrisk of burning down |
| Transmitting current | - | 135 | - | mA | Instant power consumption |
| Receiving current | - | 11.6 | - | mA | - |
| Sleep current | - | 29.5 | - | μA | 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 | Input/Output | Ground, connecting to power source referential ground |
| 2 | GND | Input/Output | Ground, connecting to power source referential ground |
| 3 | VDD | Input | Positive power reference ground, 1.85V~3.8V |
| 4 | GND | Input/Output | Ground, connecting to power source referential ground |
| 5 | PD10 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 6 | PD11 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 7 | PD12 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 8 | PD13 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 9 | PD14 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 10 | PD15 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 11 | PA0 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 12 | PA1 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 13 | PA2 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 14 | PA3 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 15 | PA4 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 16 | PA5 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 17 | PB11 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 18 | PB12 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 19 | PB13 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 20 | GND | Input/Output | Ground, connecting to power source referential ground |
| 21 | PB14 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 22 | PB15 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 23 | GND | Input/Output | Ground, connecting to power source referential ground |
| 24 | GND | Input/Output | Ground, connecting to power source referential ground |
| 25 | GND | Input/Output | Ground, connecting to power source referential ground |
| 26 | PC6 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 27 | PC7 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 28 | PC8 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 29 | PC9 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 30 | PC10 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 31 | PC11 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 32 | SWCLK | Input/Output | DBG_SWCLKTCK，General IO port（See EFR32MG1manual for details） |
| 33 | SWDIO | Input/Output | DBG_SWDIOTMS，General IO port（See EFR32MG1manual for details） |
| 34 | PF2 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 35 | PF3 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 36 | PF4 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 37 | PF5 | Input/Output | General IO port（See EFR32MG1 manual for details） |
| 38 | PF6 | Input/Output | General IO port（See EFR32MG1 manualfor details） |
| 39 | PF7 | Input/Output | General IO port（See EFR32MG1 manualfor details） |
| 40 | RESETN | Input | Reset pin |
| 41 | GND | Input/Output | Ground, connecting to power source referential ground |
| 42 | GND | Input/Output | Ground, connecting to power source referential ground |
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| Technical support |
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| Model | IC | Interface | Frequency Hz | Power dBm | Distance km | AirRate bps | Package | Size mm | Feature | Manual | Sample |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E76-2G4M20S | EFR32 | I/O | 2.4G | 20 | 2.5 | 1k~100k | SMD | 17.5 * 28.7 | Low power, built-in ARM MCU | ||
| E76-915M20S | EFR32 | I/O | 915M | 20 | 2.5 | 0.1k~2M | SMD | 16 * 26 | Low power, built-in ARM MCU | ||
| E76-868M20S | EFR32 | I/O | 868M | 20 | 2.5 | 0.1k~2M | SMD | 16 * 26 | Low power, built-in ARM MCU |
