Design elements for the XC3000, XC4000E, XC4000X, XC5200, XC9000, Spartan, SpartanXL, and Virtex libraries are included in the Xilinx Unified Libraries. Each library supports specific device architectures. For detailed information on the architectural families referenced below and the devices in each, refer to the current Programmable Logic Data Book. (For Virtex device information, refer to the Xilinx web site, http://www.xilinx.com).
Information appearing under the title of XC3000 pertains to the XC3000A, XC3100A, XC3000L, and XC3100L families. The XC3000L and XC3100L are identical in architecture and features to the XC3000A and XC3100A, respectively, but operate at a nominal supply voltage of 3.3 V.
Information appearing under the title XC4000E pertains to the XC4000E and XC4000L families. The XC4000L is identical in architecture and features to the XC4000E but operates at a nominal supply voltage of 3.3 V.
Information appearing under the title XC4000X pertains to the XC4000EX, XC4000XL, XC4000XV, and XC4000XLA families. The XC4000XL is identical in architecture and features to the XC4000EX but operates at a nominal supply voltage of 3.3 V. The XC4000XV has identical library symbols to the XC4000EX and XC4000XL but operates at a nominal supply voltage of 2.5 V and includes additional features.
Wherever XC4000 is mentioned, the information applies to all architectures supported by the XC4000E and XC4000X libraries.
The information appearing under the title XC5200 pertains to the XC5200 family.
The information appearing under the title XC9000 pertains to the XC9500 and XC9500XL CPLD families.
The information appearing under the title Spartan pertains to the Spartan family XCS* devices.
The information appearing under the title SpartanXL pertains to the SpartanXL family XCS*XL devices.
Wherever Spartans and Spartan series is mentioned, the information applies to all architectures supported by the Spartan and SpartanXL libraries.
The information appearing under the title Virtex pertains to the Virtex family XCV* devices.