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 Features

  • 300K gate Xilinx SpartanIIE device.
  • Access to all FPGA user I/Os.
  • Works with the free Xilinx WebPACK design software.
  • Complete stand-alone system, including programming cable.
  • JTAG and serial mode configuration of the FPGA.
  • Can be used with all B5 plug-on modules for system expansion.
  • 1 to 100MHz header-programmable oscillator onboard.
  • Test LED and pushbutton switch onboard.
  • Lock configuration switch - FPGA will not deconfigure by accident.
  • High current 5A regulators onboard.
  • Array of decoupling capacitors ensure supply and signal integrity.
  • Easy connection and probing - pin numbers on board top and bottom.
  • 100mm wide single height eurocard formfactor.
  • All pins located on a 0.1" grid.
  • Can be used as the "FPGA engine" in custom equipment.
  • Tutorials provided.
  • Economical for students and engineering labs.
  • Use to build your own dream designs, projects and equipment.
Frequently Asked Questions

(1) Can I implement a CPU on an FPGA?

Yes. An FPGA can directly implement a CPU, or multiple CPUs, and peripheral interfaces. CPUs may be custom designed, or functionally identical to popular vendors' CPUs, such as Microchip PIC, Atmel AVR, Zilog, or Intel microcontrollers. 

(2) Can I interface 5V TTL components to the B5-X300?

Yes. It is very easy to interface 5V TTL components to the I/Os on the B5-X300. This is commonly done.

The outputs from the B5-X300 directly meet the Vil and Vih requirements for TTL, and can be directly connected to 5V TTL device inputs.

For inputs to the B5-X300, 100ohm series resistors must be used in each signal line from the 5V device. This is for current limiting protection of the FPGA input pins.

For bidirectional signals, also use the 100ohm series resistors.

For prototyping and experimental work, we recommend that the 100ohm series resistors are used on all FPGA I/Os that connect to 5V devices. This is for some insurance that your FPGA I/Os are protected while experimenting with the prototypes.


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