240m communication distance
Maximum transmit power 7DBM
Domestic 2.4G chip SI24R1
2.4G SPI interface RF module
2Mbps airspeed
Faster transmission speed
The Si24R1 chip
Rich in resources
Excellent RF optimization debugging
Measured distance 240m (clear and open environment)
Using high-precision 16M industrial crystal oscillator, frequency error earth 10PPM (-40~85°) all our modules are inspected and tested to ensure the performance of each module
Chip advantage
SI24R1 is a universal low-power, high-performance 2.4GHZ radio frequency transceiver chip, designed for low-power wireless applications, operating frequency range of 2400MHZ-2525MHZ, support for 2MBPS,1MBPS,250KBPS three data rates.
The SI24R1 transmit power is +7DBM (adjustable), the turn-off current is only 1UA, and the receive sensitivity is -83DBM @2MHZ. In active card applications, the chip is asleep most of the time, so the overall power consumption of the SI24R1 is very low and can easily achieve more than 3 years of operation time.
The SI24R1 uses a pure domestic design and manufacturing process, which ensures the performance and cost is very competitive.
SI24R1 was officially mass-produced in 2012, with good product consistency, high stability, and cost-effective, and won unanimous recognition from customers in the field of preparation.
Serial number |
Pin |
Pin direction |
Instructions |
1 |
VCC |
+ |
The power supply voltage ranges from 2.0V to 3.6V |
2 |
CE |
Input |
Module control pin |
3 |
CSN |
Input |
Chip select pin used to start SPI communication |
4 |
SCK |
Input |
Module SPI bus clock |
5 |
MOSI |
Input |
Module SPI data input pin |
6 |
MISO |
Output |
Module SPI data output pin |
7 |
IRQ |
Output |
Module interrupt signal output, low active |
8 |
GND |
Connect to a power reference |