Timing Model
Table 4–44. Cyclone I/O Standard Output Delay Adders for Slow Slew Rate on Column Pins (Part 2 of 2)
-6 Speed Grade
-7 Speed Grade
-8 Speed Grade
I/O Standard
Unit
Min
Max
Min
Max
Min
Max
1.5-V LVTTL
2 mA
6,789
5,109
4,793
1,390
989
7,807
5,875
5,511
1,598
1,137
2,259
1,945
922
8,825
6,641
6,230
1,807
1,285
2,554
2,199
1,042
ps
ps
ps
ps
ps
ps
ps
ps
4 mA
8 mA
SSTL-3 class I
SSTL-3 class II
SSTL-2 class I
SSTL-2 class II
LVDS
1,965
1,692
802
Table 4–45. Cyclone I/O Standard Output Delay Adders for Slow Slew Rate on Row Pins (Part 1 of 2)
-6 Speed Grade -7 Speed Grade -8 Speed Grade
I/O Standard
Unit
Min
Max
Min
Max
Min
Max
LVCMOS
2 mA
1,800
1,311
945
2,070
1,507
1,086
928
2,340
1,704
1,228
1,049
2,380
1,928
1,264
1,315
1,089
3,570
2,283
2,291
2,109
7,157
5,485
5,209
8,825
6,641
6,230
1,199
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
4 mA
8 mA
12 mA
4 mA
8 mA
12 mA
16 mA
24 mA
2 mA
8 mA
12 mA
16 mA
2 mA
8 mA
12 mA
2 mA
4 mA
8 mA
807
3.3-V LVTTL
1,831
1,484
973
2,105
1,705
1,118
1,163
963
1,012
838
2.5-V LVTTL
2,747
1,757
1,763
1,623
5,506
4,220
4,008
6,789
5,109
4,793
923
3,158
2,019
2,026
1,865
6,331
4,852
4,608
7,807
5,875
5,511
1,061
1.8-V LVTTL
1.5-V LVTTL
3.3-V PCI
Altera Corporation
January 2007
4–25
Preliminary
ALTERA [ ALTERA CORPORATION ]
