New features / changes from PCB 2.1:
1) New power system capable of driving 3.3v @ 1000ma (previous version was 150ma). This is enough power to self-power most circuits/motherboards.
2) A N-Channel MOSFET has been added to the power pin that adds reverse current protection as well as auto-shutdown without adding risk to the FCUSB board.
3) Switch #1 can now be used to disable the VCC pin on the header. This can be used for in-circuit operation where only the SPI/GND pins are used and the VCC pin is already active. Or for SOIC clips connecting to live system/chips.
4) A 4 pin port (0.1" spacing) has been added which has GND +5V and +3.3V. Useful for power additional circuits using the new FCUSB's on board regulator.
1) New power system capable of driving 3.3v @ 1000ma (previous version was 150ma). This is enough power to self-power most circuits/motherboards.
2) A N-Channel MOSFET has been added to the power pin that adds reverse current protection as well as auto-shutdown without adding risk to the FCUSB board.
3) Switch #1 can now be used to disable the VCC pin on the header. This can be used for in-circuit operation where only the SPI/GND pins are used and the VCC pin is already active. Or for SOIC clips connecting to live system/chips.
4) A 4 pin port (0.1" spacing) has been added which has GND +5V and +3.3V. Useful for power additional circuits using the new FCUSB's on board regulator.