Spartan-6 FPGA Data Sheet: DC and Switching Characteristics
DS162 (v3.0) October 17, 2011
Product Specification
21
IOB Pad Input/Output/3-State Switching Characteristics
Table 28 (for commercial (XC) Spartan-6 devices) and
Table 29 (for Automotive XA Spartan-6 and Defense-grade
Spartan-6Q devices) summarizes the values of standard-specific data input delays, 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.
See the TRACE report for further information on delays when using an I/O standard with UNTUNED termination on inputs
or outputs.
XQ6SLX75
N/A
ISE 13.2 v1.19
ISE 13.2 v1.07
XQ6SLX75T
ISE 13.2 v1.19
N/A
ISE 13.2 v1.19
N/A
XQ6SLX150
N/A
ISE 13.2 v1.19
ISE 13.2 v1.07
XQ6SLX150T
ISE 13.2 v1.19
N/A
ISE 13.2 v1.19
N/A
Notes:
1.
ISE 13.3 software with v1.20 for -3, -3N, and -2; and v1.08 for -1L speed specification reflects the changes outlined in
2.
As marked with an N/A, LXT devices and all XA devices are not available with a -1L speed grade; LX4 devices and all XA and XQ devices
are not available with a -3N speed grade.
3.
Improved -3 specifications reflected in this data sheet require ISE 12.4 software with v1.15 speed specification.
4.
Improved -2 specifications reflected in this data sheet require ISE 12.4 software and the 12.4 Speed Files Patch which contains the v1.17
5.
ISE 12.3 software with v1.12 speed specification is available using ISE 12.3 software and the 12.3 Speed Files Patch available on the
6.
ISE 12.2 software with v1.11 speed specification is available using ISE 12.2 software and the 12.2 Speed Files Patch available on the
7.
ISE 13.1 software with v1.18 speed specification is available using ISE 13.1 software and the 13.1 Update available on the
Table 28: IOB Switching Characteristics for the Commercial (XC) Spartan-6 Devices
I/O Standard
TIOPI
TIOOP
TIOTP
Units
Speed Grade
-3
-3N
-2
-3
-3N
-2
-3
-3N
-2
LVDS_33
1.17
1.29
1.42
1.68
1.55
1.69
1.89
2.42
3000
ns
LVDS_25
1.01
1.13
1.26
1.57
1.65
1.79
1.99
2.47
3000
ns
BLVDS_25
1.02
1.14
1.27
1.57
1.72
1.86
2.06
2.68
1.72
1.86
2.06
2.68
ns
MINI_LVDS_33
1.17
1.29
1.42
1.68
1.57
1.71
1.91
2.41
3000
ns
MINI_LVDS_25
1.01
1.13
1.26
1.57
1.65
1.79
1.99
2.47
3000
ns
LVPECL_33
1.18
1.30
1.43
1.68
N/A
ns
LVPECL_25
1.02
1.14
1.27
1.57
N/A
ns
RSDS_33 (point to point)
1.17
1.29
1.42
1.68
1.57
1.71
1.91
2.42
3000
ns
RSDS_25 (point to point)
1.01
1.13
1.26
1.56
1.65
1.79
1.99
2.47
3000
ns
TMDS_33
1.21
1.33
1.46
1.71
1.54
1.68
1.88
2.50
3000
ns
Table 27: Spartan-6 Device Production Software and Speed Specification Release(1) (Cont’d)
Device
Speed Grade Designations(2)
-3(3)
-3N
-2(4)
-1L