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)
Dedicated Clock
Column I/O Pins
Row I/O Pins
Drive
Outputs
I/O Standard
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
SSTL_2_CLASS_II
16 mA
20 mA
24 mA
6 mA
42
41
40
20
20
20
19
43
42
42
22
22
22
23
45
44
43
24
24
25
26
15
—
—
46
47
23
—
29
—
—
47
49
25
—
42
—
—
49
51
27
—
15
—
—
46
47
23
—
29
—
—
47
49
25
—
42
—
—
49
51
27
—
SSTL_18_
CLASS_I
8 mA
10 mA
12 mA
SSTL_18_ CLASS_II
1.8V_HSTL_ CLASS_I
16 mA
18 mA
8 mA
30
29
26
46
67
62
59
57
40
41
43
18
46
67
42
41
40
20
20
20
19
33
29
28
47
67
65
62
59
40
42
43
20
47
69
43
42
42
22
22
22
23
36
29
29
48
67
68
65
62
41
42
43
21
49
70
45
44
43
24
24
25
26
—
—
59
65
71
—
—
—
28
—
—
—
25
23
15
—
—
46
47
23
—
—
—
61
66
71
—
—
—
32
—
—
—
40
42
29
—
—
47
49
25
—
—
—
63
68
72
—
—
—
36
—
—
—
56
60
42
—
—
49
51
27
—
—
—
59
65
71
—
—
—
28
—
—
—
25
23
15
—
—
46
47
23
—
—
—
61
66
71
—
—
—
32
—
—
—
40
42
29
—
—
47
49
25
—
—
—
63
68
72
—
—
—
36
—
—
—
56
60
42
—
—
49
51
27
—
10 mA
12 mA
16 mA
18 mA
20 mA
8 mA
1.8V_HSTL_ CLASS_II
1.5V_HSTL_ CLASS_I
1.5V_HSTL_ CLASS_II
10 mA
12 mA
16 mA
DIFFERENTIAL_SSTL_2 8 mA
_CLASS_I
12 mA
DIFFERENTIAL_SSTL_2 16 mA
_CLASS_II
20 mA
24 mA
DIFFERENTIAL_SSTL_
18_CLASS_I
6 mA
8 mA
10 mA
12 mA
Altera Corporation
February 2008
5–53
Cyclone II Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
