LLCC68

E220-400M33S LLCC68 433/470MHz LoRa Spread Spectrum Technology SPI Hardware Module

[Operating frequency]:410~493MHz

[Transmitting power]:33dBm

[Communication distance]:16km

[Product size]:38.5*24mm

[Introduction]:E220-400M33S is based on the new generation of LoRaTM RF chip LLCC68 produced by Semtech. It is independently developed with a maximum power of 2W and is suitable for 433/470MHz SMD LoRaTM wireless modules. It uses an industrial-grade high-precision 32MHz crystal oscillator. Since the imported LLCC68 is used as the core of the module, a power amplifier (PA) and a low-noise amplifier (LNA) are built in on the original basis, so that the maximum transmission power reaches 2W and the receiving sensitivity is further improved. The overall communication stability is greatly improved compared to products without power amplifiers and low-noise amplifiers.

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Main parametersperformanceRemark
minimum valuemaximum value
Supply voltage (V)05.5Exceeding 5.5V will permanently burn the module
Blocking power (dBm)-10Less likely to be burned if used at close range
Working temperature (℃)-4085Industrial grade
Main parametersperformanceRemark
minimum valueTypical valuemaximum value
Working voltage (V)355.5≥5V guaranteed output power
Communication level (V)-3.3-Using 5V TTL risks burning out
Working temperature (℃)-40-85Industrial grade design
Working frequency band (MHz)410433/470493Support ISM frequency band
Power consumptionEmission current (mA)-1200-Instantaneous power consumption
Receive current (mA)-12.5-
Sleep current (μA)-1-Software shutdown
Maximum transmit power (dBm)32.53333.5
Receiving sensitivity (dBm)--129--124dbm,BW_L=125kHz,SF = 7,LORA TM ;
-129dbm,BW_L=125kHz,SF = 9,LORA TM ;
-121dbm,BW_L=250kHz,SF = 7,LORA TM ;
-129dbm,BW_L=250kHz,SF = 10,LORA TM ;
-117dbm,BW_L=500kHz,SF = 7,LORA TM ;
-127dbm,BW_L=500kHz,SF = 11,LORA TM ;
Communication speed rateGFSK(bps)0.6k-121dbm,BW_L=250kHz,SF = 7,LORA TM ;300kUser programmable customization
LoRa(bps)1.76k-121dbm,BW_L=250kHz,SF = 7,LORA TM ;62.5kUser programmable customization
Main parametersdescribeRemark
Measured distance16kmSunny and open space, antenna gain 3.5dBi, antenna height 2.5 meters, air rate 2.4kbps
FIFO256ByteMaximum length of a single send
Crystal frequency32MHzPassive crystal oscillator, recommended 24pF
Modulation methodLORAIt is recommended to use LORA modulation method
Packaging methodSMD type-121dbm,BW_L=250kHz,SF = 7,LORA TM ;
Interface mode2.54mmstamp hole
Communication interfaceSPI0~10Mbps
Overall dimensions38.5*24mm-121dbm,BW_L=250kHz,SF = 7,LORA TM ;
RF interfaceStamp hole/IPEXEquivalent impedance is about 50Ω
weight5.85g-121dbm,BW_L=250kHz,SF = 7,LORA TM ;


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Pin numberPin namePin directionPin usage
1GND-Ground wire, connected to the power reference ground
2GND-Ground wire, connected to the power reference ground
3GND-Ground wire, connected to the power reference ground
4GND-Ground wire, connected to the power reference ground
5GND-Ground wire, connected to the power reference ground
6RXENinputThe radio frequency switch receives the control pin, connects to the external microcontroller IO, and is active at high level.
7TXENinputRF switch emission control pin, connected to external microcontroller IO or DIO2, active at high level
8DIO2input/outputConfigurable general-purpose IO port (see LLCC68 manual for details)
9VCC-Power supply, range 3~5.5V (it is recommended to add external ceramic filter capacitors)
10VCC-Power supply, range 3~5.5V (it is recommended to add external ceramic filter capacitors)
11GND-Ground wire, connected to the power reference ground
12GND-Ground wire, connected to the power reference ground
13DIO1input/outputConfigurable general-purpose IO port (see LLCC68 manual for details)
14BUSYoutputUsed for status indication (see LLCC68 manual for details)
15NRSTinputChip reset trigger input pin, active low level
16MISOoutputSPI data output pin
17SMOKEinputSPI data input pin
18SCKinputSPI clock input pin
19NSSinputModule chip select pin, used to start an SPI communication
20GND-Ground wire, connected to the power reference ground
21ON-RF interface, stamp hole (50 ohm characteristic impedance)
22GND-Ground wire, connected to the power reference ground
★ For details about the module’s pin definition, software driver and communication protocol, please refer to SEMTECH’s official "LLCC68 Datasheet" ★