XC4VFX12-12FFG668C Xilinx Inc, XC4VFX12-12FFG668C Datasheet - Page 191
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XC4VFX12-12FFG668C
Manufacturer Part Number
XC4VFX12-12FFG668C
Description
IC FPGA VIRTEX-4 FX 12K 668FCBGA
Manufacturer
Xilinx Inc
Series
Virtex™-4r
Specifications of XC4VFX12-12FFG668C
Number Of Logic Elements/cells
12312
Number Of Labs/clbs
1368
Total Ram Bits
663552
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
668-BBGA, FCBGA
For Use With
HW-V4-ML403-UNI-G - EVALUATION PLATFORM VIRTEX-4HW-AFX-FF668-400 - BOARD DEV VIRTEX 4 FF668
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Gates
-
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Virtex-4 FPGA User Guide
UG070 (v2.6) December 1, 2008
R
Read Only Memory (ROM)
If two dual-port 16 x 1-bit modules are built, the two RAM16X1D primitives can occupy
two slices in a CLB, as long as they share the same clock and write enable, as illustrated in
Figure
The RAM64X1S primitive occupies two slices. The RAM64X1S read path is built on the
MUXF5 and MUXF6 multiplexers.
Each function generator in SLICEM and SLICEL can implement a 16 x 1-bit ROM. Four
configurations are available: ROM16x1, ROM32x1, ROM64x1, and ROM128x1. The ROM
elements are cascadable to implement wider and/or deeper ROM. ROM contents are
loaded at device configuration.
configuration.
Table 5-4: ROM Configuration
5-8.
128 x 1
256 x 1
16 x 1
32 x 1
64 x 1
ROM
Figure 5-8:
D[0]
D[1]
www.xilinx.com
Table 5-4
Number of LUTs
16 (2 CLBs)
Two RAM16X1D Placement
RAM16X1D Bit 0
RAM16X1D Bit 1
shows the number of LUTs occupied by each
1
2
4
8
Slice M
DPO[1]
Slice M
SPO[1]
SPO[0]
DPO[0]
ug070_5_08_071504
Reg
Reg
Reg
Reg
CLB Overview
191
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