EP2C5F256C6N Datasheet, PDF (143/168 Pages) Altera Corporation – Section I. Cyclone II Device Family Data Sheet

DC Characteristics and Timing Specifications
Table 5–46. Maximum Output Clock Toggle Rate Derating Factors (Part 2 of 4)
Maximum Output Clock Toggle Rate Derating Factors (ps/pF)
I/O Standard
SSTL_2_CLASS_II
SSTL_18_
CLASS_I
Drive
Column I/O Pins
Row I/O Pins
Dedicated Clock
Outputs
Strength
–6 –7 –8 –6 –7 –8 –6 –7 –8
Speed Speed Speed Speed Speed Speed Speed Speed Speed
Grade Grade Grade Grade Grade Grade Grade Grade Grade
16 mA
42 43
45
15
29
42
15
29
42
20 mA
41 42
44
—
—
—
—
—
—
24 mA
40 42
43
—
—
—
—
—
—
6 mA
20 22 24 46 47 49 46 47 49
8 mA
20 22 24 47 49 51 47 49 51
10 mA
20 22
25
23
25
27
23
25
27
12 mA
19 23
26
—
—
—
—
—
—
SSTL_18_ CLASS_II
16 mA
18 mA
1.8V_HSTL_ CLASS_I 8 mA
10 mA
12 mA
1.8V_HSTL_ CLASS_II 16 mA
18 mA
20 mA
1.5V_HSTL_ CLASS_I 8 mA
10 mA
12 mA
1.5V_HSTL_ CLASS_II 16 mA
DIFFERENTIAL_SSTL_2 8 mA
_CLASS_I
12 mA
DIFFERENTIAL_SSTL_2 16 mA
_CLASS_II
20 mA
24 mA
DIFFERENTIAL_SSTL_ 6 mA
18_CLASS_I
8 mA
10 mA
12 mA
30
33
36
—
—
—
—
—
—
29
29
29
—
—
—
—
—
—
26 28 29 59 61 63 59 61 63
46 47 48 65 66 68 65 66 68
67 67 67 71 71 72 71 71 72
62
65
68
—
—
—
—
—
—
59
62
65
—
—
—
—
—
—
57
59
62
—
—
—
—
—
—
40 40 41 28 32 36 28 32 36
41
42
42
—
—
—
—
—
—
43
43
43
—
—
—
—
—
—
18
20
21
—
—
—
—
—
—
46 47 49 25 40 56 25 40 56
67 69 70 23 42 60 23 42 60
42 43 45 15 29 42 15 29 42
41
42
44
—
—
—
—
—
—
40
42
43
—
—
—
—
—
—
20 22 24 46 47 49 46 47 49
20 22 24 47 49 51 47 49 51
20 22 25 23 25 27 23 25 27
19
23
26
—
—
—
—
—
—
Altera Corporation
February 2008
5–53
Cyclone II Device Handbook, Volume 1