 English |
|
|
|
|
|
|
|
| EP2SGX130GF1508C4 Datasheet, PDF (221/316 Pages) Altera Corporation – Section I. Stratix II GX Device Data Sheet | |||
| |||
| ◁ |
DC and Switching Characteristics
Table 4â37. SSTL-18 Class I and II Differential Specifications
Symbol
Parameter
Conditions Minimum
Typical
Maximum Unit
VCCIO
VSWING
(DC)
VX (AC)
VSWING
(AC)
VISO
ÎVISO
VOX (AC)
Output supply voltage
DC differential input voltage
AC differential input cross
point voltage
AC differential input voltage
Input clock signal offset
voltage
Input clock signal offset
voltage variation
AC differential cross point
voltage
1.71
1.8
1.89
V
0.25
V
(VCCIO/2) â 0.175
0.5
(VCCIO/2) + 0.175 V
V
0.5 VCCIO
V
200
mV
(VCCIO/2) â 0.125
(VCCIO/2) + 0.125 V
Table 4â38. SSTL-2 Class I Specifications
Symbol
VCCIO
VTT
VREF
VIH (DC)
VIL (DC)
VIH (AC)
VIL (AC)
VOH
VOL
Parameter
Output supply voltage
Termination voltage
Reference voltage
High-level DC input voltage
Low-level DC input voltage
High-level AC input voltage
Low-level AC input voltage
High-level output voltage
Low-level output voltage
Conditions
IOH = â8.1 mA (1)
IOL = 8.1 mA (1)
Minimum
2.375
VREF â 0.04
1.188
VREF + 0.18
â0.3
VREF + 0.35
VTT + 0.57
Typical
2.5
VREF
1.25
Maximum Unit
2.625
V
VREF + 0.04 V
1.313
V
3.0
V
VREF â 0.18 V
V
VREF â 0.35 V
V
VTT â 0.57 V
Note to Table 4â38:
(1) This specification is supported across all the programmable drive settings available for this I/O standard as shown
in the Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook.
Table 4â39. SSTL-2 Class II Specifications
Symbol
Parameter
VCCIO
VTT
VREF
Output supply voltage
Termination voltage
Reference voltage
Conditions
Minimum
2.375
VREF â 0.04
1.188
Typical
2.5
VREF
1.25
Maximum Unit
2.625
V
VREF + 0.04 V
1.313
V
Altera Corporation
June 2009
4â51
Stratix II GX Device Handbook, Volume 1
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese