XC4VFX12-10FFG668I Xilinx Inc, XC4VFX12-10FFG668I Datasheet - Page 31
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XC4VFX12-10FFG668I
Manufacturer Part Number
XC4VFX12-10FFG668I
Description
IC FPGA VIRTEX-4 FX 12K 668FCBGA
Manufacturer
Xilinx Inc
Series
Virtex™-4r
Specifications of XC4VFX12-10FFG668I
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
-40°C ~ 100°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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
XC4VFX12-10FFG668I
Manufacturer:
Xilinx Inc
Quantity:
10 000
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Virtex-4 FPGA User Guide
UG070 (v2.6) December 1, 2008
R
Table 1-5
Table 1-5: BUFGCTRL Attributes
BUFG
BUFG is simply a clock buffer with one clock input and one clock output. This primitive is
based on BUFGCTRL with some pins connected to logic High or Low.
the relationship of BUFG and BUFGCTRL. A LOC constraint is available for BUFG.
The output follows the input as shown in the timing diagram in
BUFGCE and BUFGCE_1
Unlike BUFG, BUFGCE is a clock buffer with one clock input, one clock output and a clock
enable line. This primitive is based on BUFGCTRL with some pins connected to logic High
Notes:
1. Both PRESELECT attributes cannot be TRUE at the same time.
2. The LOC constraint is available.
INIT_OUT
PRESELECT_I0
PRESELECT_I1
Attribute Name
summarizes the attributes for the BUFGCTRL primitive.
BUFG(O)
I
BUFG(I)
Initializes the BUFGCTRL output to the specified
value after configuration. Sets the positive or
negative edge behavior. Sets the output level when
changing clock selection.
after configuration
after configuration
If TRUE, the BUFGCTRL output uses the I0 input
If TRUE, the BUFGCTRL output uses the I1 input
BUFG
www.xilinx.com
Figure 1-4: BUFG Timing Diagram
Figure 1-3: BUFG as BUFGCTRL
T
BCCKO_O
O
(1)
(1)
Description
.
.
GND
GND
GND
V
V
V
V
DD
DD
DD
DD
I
IGNORE1
CE1
S1
I1
I0
S0
CE0
IGNORE0
Global Clocking Resources
Figure
UG070_1_03_031208
UG070_1_04_071204
Figure 1-3
1-4.
0 (default), 1
FALSE (default),
TRUE
FALSE (default),
TRUE
Possible Values
O
illustrates
31
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