JTAG Technologies

We are boundary scan.

JT 2154 ScanBridge

The JT 2154 is an experiment board based on National Semiconductor's STA111 device, aimed at users looking to utilise addressable multiplexors within their designs, and thus set-up 'system level' JTAG access. The unit is also widely used in semi-permanent installations to expand the TAP (Test Access Port) count on JTAG Technologies testers in order to address highly segmented designs. Built-in support for ScanBridge-type devices within ProVision allows easy set-up of TAP assignments and device addressing.

  • Use as 1:3 TAP multiplexor
  • Experimental platform for system-level JTAG
  • Features industry standard STA111 chip  

Product tabs



  • Experiment with ScanBridge technology before committing to a design
  • Adds additional, addressable TAP ports to any test set-up
  • Pin-to pin connections with JTAG Technologies JT 21x7 pods or JT 3705/USB
  • Can be powered from the pod or own connection