EP2C5F256I8N Datasheet, PDF (139/168 Pages) Altera Corporation – Section I. Cyclone II Device Family Data Sheet

DC Characteristics and Timing Specifications
Table 5–45. Maximum Output Clock Toggle Rate on Cyclone II Devices (Part 2 of 4)
Maximum Output Clock Toggle Rate on Cyclone II Devices (MHz)
I/O Standard
LVCMOS
2.5V
1.8V
1.5V
SSTL_2_CLASS_I
SSTL_2_CLASS_II
SSTL_18_
CLASS_I
Drive
Strength
Column I/O Pins (1) Row I/O Pins (1)
Dedicated Clock
Outputs
–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
4 mA
250 210 170 250 210 170 250 210 170
8 mA
280 230 190 280 230 190 280 230 190
12 mA
310 260 210 310 260 210 310 260 210
16 mA
320 270 220 —
—
—
—
—
—
20 mA
350 290 240 —
—
—
—
—
—
24 mA
370 310 250 —
—
—
—
—
—
4 mA
180 150 120 180 150 120 180 150 120
8 mA
280 230 190 280 230 190 280 230 190
12 mA
440 370 300 —
—
—
—
—
—
16 mA
450 405 350 —
—
—
—
—
—
2 mA
120 100 80 120 100 80 120 100 80
4 mA
180 150 120 180 150 120 180 150 120
6 mA
220 180 150 220 180 150 220 180 150
8 mA
240 200 160 240 200 160 240 200 160
10 mA
300 250 210 300 250 210 300 250 210
12 mA
350 290 240 350 290 240 350 290 240
2 mA
80 60 50 80 60 50 80 60 50
4 mA
130 110 90 130 110 90 130 110 90
6 mA
180 150 120 180 150 120 180 150 120
8 mA
230 190 160 —
—
—
—
—
—
8 mA
400 340 280 400 340 280 400 340 280
12 mA
400 340 280 400 340 280 400 340 280
16 mA
350 290 240 350 290 240 350 290 240
20 mA
400 340 280 —
—
—
—
—
—
24 mA
400 340 280 —
—
—
—
—
—
6 mA
260 220 180 260 220 180 260 220 180
8 mA
260 220 180 260 220 180 260 220 180
10 mA
270 220 180 270 220 180 270 220 180
12 mA
280 230 190 —
—
—
—
—
—
Altera Corporation
February 2008
5–49
Cyclone II Device Handbook, Volume 1