EP2S90F1020C5 Datasheet, PDF (159/768 Pages) Altera Corporation – Stratix II Device Handbook, Volume 1

DC & Switching Characteristics
Table 5–21. SSTL-2 Class I & II Differential Specifications
Symbol
Parameter
Conditions
V_CCIO Output supply voltage
V_SWING DC differential input voltage
(DC)
V_X (AC) AC differential input cross
point voltage
V_SWING AC differential input voltage
(AC)
V_ISO
Input clock signal offset
voltage
ΔV_ISO
Input clock signal offset
voltage variation
V_OX
(AC)
AC differential output cross
point voltage
Minimum
2.375
0.36
(V_CCIO/2) – 0.2
0.7
(V_CCIO/2) – 0.2
Typical
2.500
0.5 × V_CCIO
±200
Maximum Unit
2.625
V
V
(V_CCIO/2) + 0.2 V
V
V
mV
(V_CCIO/2) + 0.2 V
Table 5–22. 1.2-V HSTL Specifications
Symbol
Parameter
Conditions Minimum
Typical
Maximum Unit
V_CCIO Output supply voltage
1.14
1.20
1.26
V
V_{R E F} Reference voltage
0.48 × V_{C C I O} 0.50 × V_{C C I O} 0.52 × V_{C C I O}
V
V_IH (DC) High-level DC input voltage
V_{R E F} + 0.08
V_{C C I O} + 0.15
V
V_IL (DC) Low-level DC input voltage
–0.15
V_{R E F} – 0.08
V
V_IH (AC) High-level AC input voltage
V_{R E F} + 0.15
V_{C C I O} + 0.24
V
V_IL (AC) Low-level AC input voltage
–0.24
V_{R E F} – 0.15
V
V_OH
High-level output voltage I_{O H} = 8 mA V_{R E F} + 0.15
V_{C C I O} + 0.15
V
V_OL
Low-level output voltage I_{O H} = –8 mA
–0.15
V_{R E F} – 0.15
V
Altera Corporation
April 2011
5–13
Stratix II Device Handbook, Volume 1