XC4VFX12-12FFG668C Xilinx Inc, XC4VFX12-12FFG668C Datasheet - Page 397
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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
Clock Event 1
T1, T2, and T4 are driven Low to release the 3-state condition. The serialization paths of
T1–T4 and D1–D4 in the OSERDES are identical (including latency), such that the bits
EFGH are always aligned with the 0010 presented at the T1–T4 pins during Clock Event 1.
Clock Event 2
The data bit E appears at OQ one CLK cycle after EFGH is sampled into the OSERDES. This
latency is consistent with
DDR mode is one CLK cycle.
The 3-state bit 0 at T1 during Clock Event 1 appears at TQ one CLK cycle after 0010 is
sampled into the OSERDES 3-state block. This latency is consistent with
states that the latency of an OSERDES in 4:1 DDR mode is one CLK cycle.
OBUFT.O
CLKDIV
CLK
OQ
TQ
D1
D2
D3
D4
Figure 8-20: 3-State Control Serialization in 4:1 DDR Mode
T1
T2
T3
T4
Table
www.xilinx.com
1
1
1
1
C
D
A
B
8-11, which states that the latency of an OSERDES in 4:1
Output Parallel-to-Serial Logic Resources (OSERDES)
Event 1
Clock
A B C D E F G H
G
H
E
F
0
0
1
0
Clock
Event 2
E F
K
L
J
I
H
I J K L
1
1
1
1
UG070_c8_27_041007
Table
8-11, which
397
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