Skip to main content

Please note that u‑blox no longer supports Internet Explorer.

We recommend using the latest version of Google Chrome or Firefox.



u-blox 6 timing GPS modules

NEO/LEA-6T is an older generation product. For new designs see:
u-blox M8 concurrent GNSS timing modules


  • Precision Timing:
    • 1 or 2 timepulse outputs (up to 10 MHz)
    • Single-satellite operation
    • Stationary (survey-in) mode for enhanced timing accuracy
    • Time mark of external event inputs
  • Raw pseudo-range data output
  • UART, USB and DDC (I2C compliant) interfaces
  • Onboard RTC Crystal for faster warm and hot starts
17 x 22.4 x 2.4 mm

Product variants


u-blox 6 GPS module Timing, raw data


u-blox 6 GPS module Timing, TCXO, Flash


u-blox 6 GPS module Timing, raw data

Product variantsLEA-6T-0LEA-6T-1NEO-6T
GNSS features 
Microprocessor on board  
Standalone module open CPU
DDC (I2C compliant)1
Electrical data 
Minimum supply [V]2.70
Maximum supply [V]3.6
Environmental data, quality & reliability 
Maximum temperature [°C]85
Minimum temperature [°C]-40
Size [mm]17 x 22.4 x 2.4
Antenna open circuit detection pin
Antenna short circuit detect / protect pin
Programmable flash memory
Active antenna / LNA supply
Additional LNA
Additional SAW
Ext. interrupt /wakeup
Internal oscillator
RTC crystal
Timepulse output

Product Summary

Integration Manual

Interface Manual

Application Note


Information Note


White Paper

The NEO-6T/LEA-6T modules provide precision GPS timing for demanding synchronization applications such as basestations. This module features user configurable frequency and timepulse outputs. An accuracy of up to 15 ns is achievable by using the quantization error information to compensate the granularity of the time pulse. NEO-6T/LEA-6T feature a time mode function whereby the GPS receiver assumes a stationary 3D position, whether programmed manually or determined by an initial self-survey. During stationary operation GPS timing is possible with only one visible satellite. This means that time can be maintained even under adverse signal conditions or in environments with poor sky visibility. A built-in time mark and counter unit provide precise time measurement of external event inputs. T-RAIM (Timing Receiver Autonomous Integrity Monitoring) is available to detect faulty GPS measurements. NEO-6T/LEA-6T deliver raw pseudorange data for survey and specialist applications. NEO-6T/LEA-6T modules are manufactured in ISO/TS 16949 certified sites. Each module is tested and inspected during production. Qualification tests are performed as stipulated in the ISO16750 standard: “Road vehicles – Environmental conditions and testing for electrical and electronic equipment”.