FPGA overview	XC7S50	XC7S75	XC7S100
Logic Cell	52,160	76,800	102,400
Slice	8,150	12,000	16,000
Max Distributed RAM (kb)	600	832	1,100
Max Block RAM (kb)	2,700	3,240	4,320
DSP Slice	120	140	160
CMT (MMCMx1+PLLx1)	Five	8	8
Max user I/O (Device)	250	338	338
Max user I/O (Board)	100	100	100

Please refer to the page of XILINX Spartan-7 for the details of FPGA outline .

• Equipped with XILINX Spartan-7 FPGA XC7S50-1FGGA484C, XC7S75-1FGGA484C or XC7S100-1FGGA484C
• Built-in power
  supply circuit required for 5V single power supply operation Built-in power
  supply sequencer (at the time of turning on )
• Abundant I/O externally drawn (100)
• Equipped with 5V level converter in I/O block
  Controllable every 8 bits (4 bits in part)
• On-board clock
  50MHz (LVTTL)
• Configuration ROM
  Quad SPI ROM: MT25QL128ABA1ESE-0SIT (Micron, 128Mbit)
• 
  FPGA with 7-pin JTAG connector configuration
  ISP
  JTAG Buffer circuit to configuration ROM realizes stable download
• General-purpose LED x4
• Push button switch x1
  • DIP switch x1bit
• Reset function for configuration
• 6-layer board adopted
• Board size: 54mm x 86mm Credit card size
• RoHS compliant