XC4VFX20-11FFG672C Xilinx Inc, XC4VFX20-11FFG672C Datasheet - Page 198

• Manufacturer Part Number: XC4VFX20-11FFG672C
• Description: IC FPGA VIRTEX-4 FX 20K 672-FBGA
• Manufacturer: Xilinx Inc
• Series: Virtex™-4r

Specifications of XC4VFX20-11FFG672C

• Number Of Logic Elements/cells: 19224
• Number Of Labs/clbs: 2136
• Total Ram Bits: 1253376
• Number Of I /o: 320
• Voltage - Supply: 1.14 V ~ 1.26 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 672-BBGA, FCBGA
• For Use With: HW-V4-ML405-UNI-G - EVALUATION PLATFORM VIRTEX-4
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -

Chapter 5: Configurable Logic Blocks (CLBs)
198
Designing Large Multiplexers
4:1 Multiplexer
Each Virtex-4 FPGA slice has a MUXF5 to combine the outputs of the two LUTs and an
extra MUXFX.
(or a 4:1 MUX) in one slice.
S_F5
4
4
Figure 5-14
Figure 5-14: LUTs and MUXF5 in a Slice
LUT
LUT
www.xilinx.com
illustrates a valid combinatorial function with up to nine inputs
Any Slice
MUXFX
MUXF5
Reg
Reg
UG070 (v2.6) December 1, 2008
Virtex-4 FPGA User Guide
UG070_5_14_071504
OUT_F5
R