xc3s1400an Xilinx Corp., xc3s1400an Datasheet - Page 33

• Manufacturer Part Number: xc3s1400an
• Description: Spartan-3an Fpga Family Data Sheet
• Manufacturer: Xilinx Corp.

Output Timing Adjustments
Table 27:
DS557-3 (v3.1) June 2, 2008
Product Specification
Single-Ended Standards
LVTTL
LVCMOS25 with 12mA Drive and
Signal Standard (IOSTANDARD)
Fast Slew Rate to the Following
Convert Output Time from
Output Timing Adjustments for IOB
R
QuietIO
Slow
Fast
12 mA
16 mA
24 mA
12 mA
16 mA
24 mA
12 mA
16 mA
24 mA
2 mA
4 mA
6 mA
8 mA
2 mA
4 mA
6 mA
8 mA
2 mA
4 mA
6 mA
8 mA
27.67
27.67
27.67
16.71
16.67
16.22
12.11
Speed Grade
5.58
3.16
3.17
2.09
1.62
1.24
2.74
3.03
1.71
1.71
0.53
0.53
0.59
0.60
Adjustment
-5
Add the
Below
27.67
27.67
27.67
16.71
16.67
16.22
12.11
5.58
3.16
3.17
2.09
1.62
1.24
2.74
3.03
1.71
1.71
0.53
0.53
0.59
0.60
-4
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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Table 27:
LVCMOS33
LVCMOS25 with 12mA Drive and
Signal Standard (IOSTANDARD)
Fast Slew Rate to the Following
Convert Output Time from
Output Timing Adjustments for IOB
QuietIO
Slow
Fast
DC and Switching Characteristics
12 mA
16 mA
24 mA
12 mA
16 mA
24 mA
12 mA
16 mA
24 mA
2 mA
4 mA
6 mA
8 mA
2 mA
4 mA
6 mA
8 mA
2 mA
4 mA
6 mA
8 mA
27.67
27.67
27.67
16.71
16.29
16.18
12.11
Speed Grade
5.58
3.17
3.17
2.09
1.24
1.15
2.55
3.02
1.71
1.72
0.53
0.59
0.59
0.51
Adjustment
-5
Add the
Below
27.67
27.67
27.67
16.71
16.29
16.18
12.11
5.58
3.17
3.17
2.09
1.24
1.15
2.55
3.02
1.71
1.72
0.53
0.59
0.59
0.51
-4
(Continued)
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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