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The Spartan-II family is:
- Based on a cost-optimized Virtex architecture, while the Spartan-XL
family is based on the XC4000 architecture
- Based on a 0.18u/0.22u, six layer metal (6LM) process vs. a 0.25u/0.35u,
five layer metal (5LM) process for the Spartan-XL family
- >3x density increase (from 40,000 to 150,000 system gates)
- >1.5x speed grade performance (from 100MHz to 150+MHz)
- 2-3x gates per I/O pin
- 2x gates per dollar
- 2x I/O performance
- Operating voltage of 2.5V vs. 3.3V for the Spartan-XL family
- Features an enhanced power-down with register preserve and status
pin
- Features dedicated Block SelectRAM in addition to distributed SelectRAM,
while the Spartan-XL family only has distributed SelectRAM memory
- Features dedicated DLLs for advanced clock control, while the Spartan-XL
family does not
- Available in fine pitch packages (FG256 and FG456)
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