The JTAG-C1 adapter is an affordable high-speed Lattice FPGA programming solution. It is based on FTDI USB to UART/FIFO IC (FT4232HQ) enabling JTAG communication of up to 30Mbits/s.The adapter connects a USB Type-C port to a 10-pin 1.27mm pitch header (Samtec FTSH-105-01-L-D-K).

This pin header allows the user to connect to the JTAG programming interface of the target board through a flat cable. A wide range of JTAG voltages (0.8V – 3.6V) is supported.


  • Tiny 22mm x 45mm programming probe for Lattice Nexus FPGAs

  • Self-powered through a USB-C connector

  • Vref to support different JTAG-Target voltages; can be between 0.8V and 3.6V

  • USB 2.0 high-speed interface

  • JTAG communication support up to 30Mbits/s

  • Board Connectors:

  • USB Type-C

  • FTSH-105-01-L-D-K 1.27mm pitch, 10pins

  • Compatible flat cables:

  • FFSD-05-D / FFTD-05-D

  • Adafruit 1675 (150mm)

JTAG Adapter

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