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  Home >> Wireless Module >> RF Modules >> SI4432 Wireless Transceiver module Distance 2500m MO25-4432
SI4432 Wireless Transceiver module Distance 2500m MO25-4432 Add to favorites

Manufacturer CoreWind
Product Order Code MO25-4432
Product DataSheet No Datasheet
Price: $16.00
Quantity 1-29pcs 30-99pcs 100-499pcs 500-999pcs
Price $16.00 $15.50 $15.00 $14.00
500mw High Power SI4432 transceiver module telemetry remote control,based on SI4432
RFSI4432 module output power is 500mW,based on SI4432 from Silicon labs.The -121dBm and +20dBm output power ensures extended range,make the module suitable for long range applications.Its communication distance up to 3Km.User can modify the internal parameters through the SPI interface.The Module is with a nickel-plated shield cover to enhance anti-interference ability greatly. 


  • Frequency range: 433.92M
  • Sensitivity: up to-121dBm
  • Maximum output power: 500mw
  • Data transfer rate: 0.123-256kbps
  • Modulation mode: FSK,GFSK and OOK 
  • Supply:3.7-6 V 
  • Low consumption shutdown mode
  • Digital received signal strength indication (RSSI)
  • Timed wake-up function
  • Automatic matching and bi-directional antenna switch control
  • Configurable packet structure
  • Preamble detection
  • 64-byte transmit and receive data register (FIFO)
  • Low Power Detection
  • Temperature sensors and 8 bit ADC
  • Operating temperature range: -20 ~ +60 °C
  • Integrated regulator
  • Frequency hopping
  • Power-on reset function

Pin Definition

Pin No. Pin Definition Description
1 VCC Power supply
2 GND Ground
3 NC No Connect
4 NC Connect
5 SDN Shutdown input pin.0–VDD V digital input.SDN should be = 0 in all modes except Shutdown mode.When SDN =1 the chip will be completely shutdown and the contents of the registers will be lost.
6 nIRQ General Microcontroller Interrupt Status output
7 nSEL Serial Interface Select input. 0– VDD V digital input.This pin provides the Select/Enable function for the 4-line serial data bus. The signal is also used to signify burst read/write mode.
8 GND Ground
9 SCLK Serial Clock input.0–VDD V digital input.This pin provides the serial data clock function for the 4-line serial data bus. Data is clocked into the Si4430/31/32 on positive edge transitions. 
10 SDI Serial Data input. 0–VDD V digital input. This pin provides the serial data stream for the 4-line serial data bus.
11 SDO 0–VDD V digital output that provides a serial readback function of the internal control registers
12 GPIO2 Test receiver sensitivity 
13 NC No Connect
14 NC No Connect
15 GND Ground
16 ATN Extra antenna or TR switch control to be used if more GPIO are required. Pin is a hardwired version of GPIO setting 11000, Antenna 2 and can be manually controlled by the antdiv[2:0] bits in register 08h.


  • Remote
  • Remote meter reading
  • Home security alarm and remote keyless entry
  • Industrial Control
  • Home automation telemetry
  • Sensor Networks
  • Tire Pressure Monitoring
  • Health Monitoring
  • Tag Reader
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