EP2SGX130GF1508C4 Datasheet, PDF (282/316 Pages) Altera Corporation – Section I. Stratix II GX Device Data Sheet

Table 4–95. Stratix II GX Maximum Output Clock Rate for Row Pins (Series Termination) (Part 2 of 2)
I/O Standard Drive Strength -3 Speed Grade -4 Speed Grade -5 Speed Grade
SSTL-2 Class I OCT_50_OHMS
600
500
500
SSTL-2 Class II OCT_25_OHMS
600
550
500
SSTL-18 Class I OCT_50_OHMS
590
400
350
1.5-V HSTL
OCT_50_OHMS
600
550
500
Class I
1.8-V HSTL
OCT_50_OHMS
650
600
600
Class I
Differential
OCT_50_OHMS
600
500
500
SSTL-2 Class I
Differential
OCT_25_OHMS
600
550
500
SSTL-2 Class II
Differential
OCT_50_OHMS
590
400
350
SSTL-18 Class I
Differential
OCT_50_OHMS
650
600
600
HSTL-18 Class I
Differential
OCT_50_OHMS
600
550
500
HSTL-15 Class I
Unit
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
Table 4–96 shows the maximum output clock toggle rate for Stratix II GX
device series-terminated dedicated clock pins.
Table 4–96. Stratix II GX Maximum Output Clock Rate for Dedicated Clock Pins (Series Termination) (Part
1 of 2)
I/O Standard Drive Strength -3 Speed Grade -4 Speed Grade -5 Speed Grade
LVTTL
OCT_25_OHMS
400
400
350
OCT_50_OHMS
400
400
350
LVCMOS
OCT_25_OHMS
350
350
300
OCT_50_OHMS
350
350
300
2.5 V
OCT_25_OHMS
350
350
300
OCT_50_OHMS
350
350
300
1.8 V
OCT_25_OHMS
700
550
450
OCT_50_OHMS
700
550
450
1.5 V
OCT_50_OHMS
550
450
400
SSTL-2 Class I OCT_50_OHMS
600
500
500
SSTL-2 Class II OCT_25_OHMS
600
550
500
SSTL-18 Class I OCT_50_OHMS
450
400
350
Unit
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz