Xilinx SelectIO 7 Series User Manual page 52

Fpgas
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Chapter 1:
SelectIO Resources
Figure 1-37
X-Ref Target - Figure 1-37
52
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shows unidirectional terminated topologies.
IOB
LVTTL
IOB
LVTTL
R S = Z 0 – R D
IOB
LVTTL
Note: V
TT
Figure 1-37: LVTTL Unidirectional Termination
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IOB
LVTTL
Z 0
IOB
LVTTL
Z 0
V
TT
IOB
LVTTL
R P = Z 0
Z 0
is any voltage from 0V to V CCO
ug471_c1_27_011811
7 Series FPGAs SelectIO Resources User Guide
UG471 (v1.10) May 8, 2018

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