xa3s1400a-4ftg256q Xilinx Corp., xa3s1400a-4ftg256q Datasheet - Page 26

• Manufacturer Part Number: xa3s1400a-4ftg256q
• Description: Xa Spartan-3a Automotive Fpga Family Data Sheet
• Manufacturer: Xilinx Corp.

Output Timing Adjustments
Table 25:
26
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
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
Speed Grade
Adjustment
Add the
Below
27.67
27.67
27.67
16.71
16.67
16.22
12.11
5.58
3.45
3.45
2.26
1.66
1.29
2.97
3.37
2.27
2.27
0.63
0.61
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 25:
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
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
DS681 (v1.1) February 3, 2009
Speed Grade
Adjustment
Add the
Below
27.67
27.67
27.67
16.71
16.29
16.18
12.11
Product Specification
5.58
3.30
3.30
2.26
1.29
1.22
2.79
3.72
2.05
2.08
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
R