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Kintex UltraScale FPGAs Data Sheet: DC and AC Switching Characteristics
DS892 (v1.19) September 22, 2020 www.xilinx.com
Product Specification 35
Table 31: Output Delay Measurement Methodology
Description I/O Standard Attribute RREF
()CREF(1)
(pF) VMEAS
(V) VREF
(V)
LVCMOS, 1.2V LVCMOS12 1M 0 0.6 0
LVCMOS 1.5V LVCMOS15 1M 0 0.75 0
LVCMOS 1.8V LVCMOS18 1M 0 0.9 0
LVCMOS, 2.5V LVCMOS25 1M 0 1.25 0
LVCMOS, 3.3V LVCMOS33 1M 0 1.65 0
LVTTL, 3.3V LVTTL 1M 0 1.65 0
LVDCI/HSLVDCI, 1.5V LVDCI_15, HSLVDCI_15 50 0 VREF 0.75
LVDCI/HSLVDCI, 1.8V LVDCI_18, HSLVDCI_18 50 0 VREF 0.9
HSTL (high-speed transceiver logic), Class I, 1.2V HSTL_I_12 50 0 VREF 0.6
HSTL, Class I, 1.5V HSTL_I 50 0 VREF 0.75
HSTL, Class II, 1.5V HSTL_II 25 0 VREF 0.75
HSTL, Class I, 1.8V HSTL_I_18 50 0 VREF 0.9
HSTL, Class II, 1.8V HSTL_II_18 25 0 VREF 0.9
HSUL (high-speed unterminated logic), 1.2V HSUL_12 50 0 VREF 0.6
SSTL12, 1.2V SSTL12 50 0 VREF 0.6
SSTL135/SSTL135_R, 1.35V SSTL135, SSTL135_R 50 0 VREF 0.675
SSTL15/SSTL15_R, 1.5V SSTL15, SSTL15_R 50 0 VREF 0.75
SSTL (stub series terminated logic),
Class I and Class II, 1.8V SSTL18_I, SSTL18_II 50 0 VREF 0.9
POD10, 1.0V POD10 50 0 VREF 1.0
POD12, 1.2V POD12 50 0 VREF 1.2
DIFF_HSTL, Class I, 1.2V DIFF_HSTL_I_12 50 0 VREF 0.6
DIFF_HSTL, Class I and II, 1.5V DIFF_HSTL_I, DIFF_HSTL_II 50 0 VREF 0.75
DIFF_HSTL, Class I and II, 1.8V DIFF_HSTL_I_18,
DIFF_HSTL_II_18 50 0 VREF 0.9
DIFF_HSUL_12, 1.2V DIFF_HSUL_12 50 0 VREF 0.6
DIFF_SSTL12, 1.2V DIFF_SSTL12 50 0 VREF 0.6
DIFF_SSTL135/DIFF_SSTL135_R, 1.35V DIFF_SSTL135,
DIFF_SSTL135_R 50 0 VREF 0.675
DIFF_SSTL15/DIFF_SSTL15_R, 1.5V DIFF_SSTL15,
DIFF_SSTL15_R 50 0 VREF 0.75
DIFF_SSTL18, Class I and II, 1.8V DIFF_SSTL18_I,
DIFF_SSTL18_II 50 0 VREF 0.9
DIFF_POD10, 1.0V DIFF_POD10 50 0 VREF 1.0
DIFF_POD12, 1.2V DIFF_POD12 50 0 VREF 1.2
LVDS (low-voltage differential signaling), 1.8V LVDS 100 0 0(2) 0
LVDS, 2.5V LVDS_25 100 0 0(2) 0
BLVDS (Bus LVDS), 2.5V BLVDS_25 100 0 0(2) 0
Mini LVDS, 2.5V MINI_LVDS_25 100 0 0(2) 0
PPDS_25 PPDS_25 100 0 0(2) 0
RSDS_25 RSDS_25 100 0 0(2) 0