| Element | XC3000 | XC4000E | XC4000X | XC5200 | XC9000 | Spartan | SpartanXL | Virtex |
|---|---|---|---|---|---|---|---|---|
| INV | Primitive | Primitive | Primitive | Primitive | Primitive | Primitive | Primitive | Primitive |
| INV4, INV8, INV16 | Macro | Macro | Macro | Macro | Macro | Macro | Macro | Macro |
INV, INV4, INV8, and INV16 are single and multiple inverters that identify signal inversions in a schematic.
Figure 6.46 INV8 Implementation XC3000, XC4000, XC5200, XC9000, Spartans, Virtex |  |
