XC2S50-5TQG144c   package: TQFP144

Family: Spartan-II

- density:
      * 1728 Logic Cells;
      * 50000 System Gates;
- Configurable Logic Blocks: 384 (13x24);
- Input/Output Blocks: 92;
- Hierarchical memory:
      * 24756b total distributed RAM;
      * 32Kb total block RAM.

XC3S50-4VQG100c   package: VQFP100

Family: Spartan-3

- density:
      * 1728 Logic Cells;
      * 50000 System Gates;
- Configurable Logic Blocks: 192 (16x12);
- Input/Output Blocks: 63;
- Dedicated Multipliers: 4;
- Digital Clock Managers: 2;
- Hierarchical memory:
      * 12Kb total distributed RAM;
      * 72Kb total block RAM.

XC3S200-4TQ144c   package: TQFP144

Family: Spartan-3

- density:
      * 4320 Logic Cells;
      * 200000 System Gates;
- Configurable Logic Blocks: 480 (24x20);
- Input/Output Blocks: 97;
- Dedicated Multipliers: 12;
- Digital Clock Managers: 4;
- Hierarchical memory:
      * 30Kb total distributed RAM;
      * 216Kb total block RAM.

XC3S400-4TQ144c   package: TQFP144

Family: Spartan-3

- density:
      * 8064 Logic Cells;
      * 400000 System Gates;
- Configurable Logic Blocks: 896 (32x28);
- Input/Output Blocks: 97;
- Dedicated Multipliers: 16;
- Digital Clock Managers: 4;
- Hierarchical memory:
      * 56Kb total distributed RAM;
      * 288Kb total block RAM.