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E51-900NW16S(BR)
E51-900NW16S(BR)
E51-900NW16S(BR)
E51-900NW16S(BR)
E51-900NW16S(BR) 868/915Mhz EFR32FG25 Chips Industrial loT Wireless Modules Supports WI-SUN/FAN1.1/OFDM

[Chip Solution]：EFR32FG25

[Operating frequency]：860-925 MHz

[Interface type]：UART

[Communication distance]： 2.5 km

[Size]：20 x 20 mm

[Product weight]：2 ± 0.1 g

[Introduction]：The E51 series IoT wireless module is a Wi-Sun module that provides long-distance, low-power transmission. It uses the EFR32FG25 series chip and supports the orthogonal frequency division multiplexing (OFDM) modulation technology introduced in the Wi-SUN field area network (FAN). It has a small form factor, rich interface resources, and support for user secondary development, making it widely applicable in the IoT industry.

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PIN
Pin number Pin Name Pin direction Pin Purpose
1 GND Output

Ground wire, connected to the power reference ground

2 GND Output

Ground wire, connected to the power reference ground

3 GND Output

Ground wire, connected to the power reference ground

4 GND Output

Ground wire, connected to the power reference ground

5 PD07 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

6 PD06 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

7 PD05 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

8 PD04 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

9 PD03 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

10 PD02 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

- PD01 -

Not connected, used as LFXTAL_I inside the module. Connected to a 32.768KHz crystal oscillator (see the EFR32FG25 manual for details).

- PD00 -

Not connected, used as LFXTAL_O inside the module. Connected to a 32.768KHz crystal oscillator (see the EFR32FG25 manual for details).

11 GND Output

Ground wire, connected to the power reference ground

12 +5V Input

Power input +5V

13 +5V Input

Power input +5V

14 PC00 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

15 PC01 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

16 PC02 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

17 PC03 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

18 PC04 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

19 PC05 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

20 PC06 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

21 PC07 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

22 PC08 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

23 PC09 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

24 PC10 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

25 NRST Output

Chip reset trigger input pin, low level is valid

26 GND Output

Ground wire, connected to the power reference ground

27 GND Output

Ground wire, connected to the power reference ground

28 GND Output

Ground wire, connected to the power reference ground

29 ON Output

Antenna interface, stamp hole (50Ω characteristic impedance), connected to IPEX-1 interface

30 GND Output

Ground wire, connected to the power reference ground

31 GND Output

Ground wire, connected to the power reference ground

32 GND Output

Ground wire, connected to the power reference ground

33 GND Output

Ground wire, connected to the power reference ground

34 PB05 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

35 PB04 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

36 PB03 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

37 PB02 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

38 PB01 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

39 PB00 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

40 GND Output

Ground wire, connected to the power reference ground

41 PA00 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

42 PA01 Input/Output

Program debugging/downloading port SWCLK

43 PA02 Input/Output

Program debugging/downloading port SWDIO

44 PA03 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

45 PA04 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

46 PA05 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

47 PA06 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

48 PA07 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

49 PA08 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

50 PA09 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

51 PA10 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)

52 PA11 Input/Output

Configurable general-purpose IO port (see EFR32FG25 manual for details)