XC4VFX12-11FFG668I Xilinx Inc, XC4VFX12-11FFG668I Datasheet - Page 284
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XC4VFX12-11FFG668I
Manufacturer Part Number
XC4VFX12-11FFG668I
Description
IC FPGA VIRTEX-4 FX 12K 668FCBGA
Manufacturer
Xilinx Inc
Series
Virtex™-4r
Specifications of XC4VFX12-11FFG668I
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
-
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Part Number:
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Chapter 6: SelectIO Resources
284
External Termination
DCI
SSTL2_II
SSTL2_II_DCI
R 0 = 25
Ω
V
REF
V
= 1.25V
REF
IOB
= 1.25V
2R
2R
Figure 6-61
for SSTL2 Class II.
Table 6-27
Table 6-27: SSTL2 DC Voltage Specifications Class II
Figure 6-61: SSTL2 Class II with Bidirectional Termination
V
V
V
V
V
V
V
I
VRN
VRP
OH
CCO
REF
TT
IH
IL
OH
OL
R S = 25Ω
at V
= V
≤ V
= 2Z 0 = 100Ω
= 2Z 0 = 100Ω
≤ V
≥ V
≥ V
= 0.5 × V
REF
REF
OH
REF
REF
REF
lists the SSTL2 DC voltage specifications for Class II.
shows a sample circuit illustrating a valid bidirectional termination technique
V
V
(mA)
+ N
TT
+ 0.15
CCO
– 0.15
+ 0.8
– 0.8
CCO
= 1.25V
(1)
= 2.5V
R P = Z 0 = 50Ω
(4)
IOB
www.xilinx.com
R P = Z 0 = 50Ω
Z 0
Z 0
V
TT
IOB
V
= 1.25V
CCO
R S = 25Ω
2R
2R
= 2.5V
VRP
VRN
= 2Z 0 = 100Ω
= 2Z 0 = 100Ω
–0.3
–16.2
Min
1.13
1.09
1.28
1.93
0.36
2.3
(3)
IOB
UG070 (v2.6) December 1, 2008
V
REF
Virtex-4 FPGA User Guide
V
= 1.25V
REF
1.25
1.25
1.40
2.03
0.46
Typ
2.5
1.1
–
= 1.25V
SSTL2_II_DCI
SSTL2_II
ug070_6_59_071904
+
R 0 = 25
3.0
+
Max
1.38
1.42
1.27
2.13
0.55
2.7
–
(2)
Ω
R
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