SIMCom presents an ultra compact and reliable GPS module-SIM18. This is a standalone L1 frequency GPS module in a SMT type and it is designed with SiRF4 high sensitivity navigation engine, which allows you to benefit from small dimensions and cost-effective solutions.

Mechanical data 
*Dimensions: 11*11*2.
*Weight: 0.5g 

  -1 NReset 
      -1 EINT0 input 
      -1 ON_OFF input 
      -1 WAKEUP output 
      -1 time pulse 
*Protocols NMEA, OSP

Performance data 
*Receiver type       48-channel SiRF4 engine 
   GPS L1, C/A Code 
*Max. update rate   1Hz 
         -Tracking: -161 dBm 
         -Reacquisition: -160 dBm 
         -Cold starts: -147 dBm 
         -Cold starts: 35 s (typical) 
         -Hot starts: 0.6 s (typical) 
* Accuracy 
          -Position3: 2.5m CEP 
*Speed4:     <0.01m/s 
*Operational limits 
          -Velocity: <1850km/h 
          -Altitude: <18288km 
*Operation temperature: -40°C to +85 °C 

Electrical data 
*Power supply 1.71V to 1.89V 
*Backup power 1.71V to 1.89V 
*Power consumption2,5 
         -Acquisition 45mA (average) 
         -Tracking 40mA (average) 
         -Sleep 18μA(average) 
*Antenna type Active and passive 
*Antenna power External or internal VCC_ANT

Support product 
*SIM18 EVB KIT with USB V2.0 full speed interface 



Document download
  • Application Note
  • I2C communications of SIM18.pdfDownload
  • SIM18_EVB kit_User Guide_V2.01.pdfDownload
  • SIM18_Hardware Design_V1.05.pdfDownload
  • SIM18_NMEA Messages_Specification_V1.00.pdfDownload
  • SIM18_Specification_V1011.pdfDownload