The 7I42TA is a breakout card for Mesa's 50 pin I/O FPGA cards.  It has 50 pin .1" output connector and 3.5mm headers compatible with pluggable screw terminal blocks. In addition to providing a breakout function, the 7I42TA protects the FPGA card from excessive input voltages and ESD.  The 7I42TA protects FPGA I/O from accidental contact from external voltages of +12 and -5V with built in diode clamps and 50 Ohm current limit resistors in series with all I/O pins.  The 7I42TA limits I/O pin bandwidth to approximately 10 MHz.  Phoenix compatible 3.5 mm pluggable screw terminals are supplied with the 7I42TA.