English
Language : 

DS692 Datasheet, PDF (14/41 Pages) Xilinx, Inc – Radiation-Hardened
◁
Radiation-Hardened, Space-Grade Virtex-5QV FPGA Data Sheet: DC and AC Switching Characteristics
IOB Pad Input/Output/3-State Switching Characteristics
Table 28 summarizes the values of standard-specific data input delay adjustments, output delays terminating at pads (based
on standard) and 3-state delays.
TIOPI is described as the delay from IOB pad through the input buffer to the I-pin of an IOB pad. The delay varies depending
on the capability of the SelectIO input buffer.
TIOOP is described as the delay from the O pin to the IOB pad through the output buffer of an IOB pad. The delay varies
depending on the capability of the SelectIO output buffer.
TIOTP is described as the delay from the T pin to the IOB pad through the output buffer of an IOB pad, when 3-state is
disabled. The delay varies depending on the SelectIO capability of the output buffer.
Table 29 summarizes the value of TIOTPHZ. TIOTPHZ is described as the delay from the T pin to the IOB pad through the
output buffer of an IOB pad, when 3-state is enabled (i.e., a high-impedance state).
Table 28: IOB Switching Characteristics
I/O Standard
LVDS_25
LVDSEXT_25
HT_25
BLVDS_25
RSDS_25 (point to point)
ULVDS_25
PCI33_3
PCI66_3
PCI-X
GTL
GTLP
HSTL_I
HSTL_II
HSTL_III
HSTL_IV
HSTL_I _18
HSTL_II _18
HSTL_III _18
HSTL_IV_18
SSTL2_I
SSTL2_II
LVTTL, Slow, 2 mA
LVTTL, Slow, 4 mA
LVTTL, Slow, 6 mA
LVTTL, Slow, 8 mA
LVTTL, Slow, 12 mA
LVTTL, Slow, 16 mA
LVTTL, Slow, 24 mA
LVTTL, Fast, 2 mA
LVTTL, Fast, 4 mA
LVTTL, Fast, 6 mA
LVTTL, Fast, 8 mA
LVTTL, Fast, 12 mA
TIOPI
1.19
1.45
1.19
1.19
1.19
1.19
1.11
1.11
1.11
1.35
1.30
1.12
1.12
1.12
1.12
1.12
1.12
1.13
1.13
1.12
1.12
1.11
1.11
1.11
1.11
1.11
1.11
1.11
1.11
1.11
1.11
1.11
1.11
TIOOP
1.85
1.91
1.88
4.58
1.85
1.58
2.66
2.66
2.02
2.08
2.16
2.02
2.03
2.07
2.05
2.01
2.03
2.08
2.03
2.09
2.00
5.61
3.82
3.69
2.94
2.75
2.65
2.67
4.54
3.25
2.94
2.51
2.32
TIOTP
3000
3000
3000
4.58
3000
3000
2.66
2.66
2.02
2.08
2.16
2.02
2.03
2.07
2.05
2.01
2.03
2.08
2.03
2.09
2.00
5.61
3.82
3.69
2.94
2.75
2.65
2.67
4.54
3.25
2.94
2.51
2.32
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
DS692 (v1.3.1) January 16, 2015
Product Specification
www.xilinx.com
Send Feedback
14
 ▷