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X-Ref Target - Figure 1-46
External Termination
IOB
HSTL_I
HSTL_I_12
HSTL_I_18
DCI
IOB
HSTL_I_DCI
HSTL_I_DCI_18
Figure 1-46: HSTL Class I (1.2V, 1.5V, or 1.8V) Termination
7 Series FPGAs SelectIO Resources User Guide
UG471 (v1.10) May 8, 2018
V
= 0.75V for HSTL_I
TT
0.6V for HSTL_I_12
0.9V for HSTL_I_18
R P = Z 0 = 50Ω
Z 0
IOB
V
= 1.5V for HSTL_I_DCI
CCO
1.8V for HSTL_I_DCI_18
R
= 2Z 0 = 100Ω
VRN
Z 0
V
R
= 2Z 0 = 100Ω
VRP
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Supported I/O Standards and Terminations
IOB
HSTL_I
HSTL_I_12
HSTL_I_18
V
= 0.75V for HSTL_I
REF
0.6V for HSTL_I_12
0.9V for HSTL_I_18
= 0.75V for HSTL_I_DCI
REF
0.9V for HSTL_I_DCI_18
+
–
HSTL_I_DCI
HSTL_I_DCI_18
+
–
ug471_c1_36_021214
63
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