DC & Switching Characteristics
Table 6–29. 1.5-V HSTL Class I Specifications (Part 2 of 2)
Symbol
Parameter
Conditions
IOH = 8 mA (1)
IOH = –8 mA (1)
Minimum
Typical
Maximum
Units
VOH
VOL
High-level output voltage
Low-level output voltage
VCCIO – 0.4
V
V
0.4
Table 6–30. 1.5-V HSTL Class II Specifications
Symbol
Parameter
Conditions
Minimum
1.4
Typical
Maximum
Units
V
VCCIO
Output supply voltage
Input reference voltage
Termination voltage
1.5
1.6
VREF
VTT
0.68
0.75
0.75
0.9
0.8
V
0.7
V
V
V
V
V
IH (DC)
DC high-level input voltage
DC low-level input voltage
AC high-level input voltage
AC low-level input voltage
High-level output voltage
Low-level output voltage
VREF + 0.1
–0.3
V
IL (DC)
IH (AC)
IL (AC)
VREF – 0.1
VREF – 0.2
0.4
V
VREF + 0.2
V
V
VOH
VOL
IOH = 16 mA (1) VCCIO – 0.4
IOH = –16 mA (1)
V
V
Table 6–31. 1.5-V Differential HSTL Specifications
Symbol
Parameter
Conditions
Minimum
Typical
Maximum
Units
VCCIO
I/O supply voltage
1.4
1.5
1.6
V
V
V
V
V
DIF (DC)
CM (DC)
DIF (AC)
DC input differential
voltage
0.2
DC common mode input
voltage
0.68
0.4
0.9
V
V
AC differential input
voltage
Table 6–32. CTT I/O Specifications (Part 1 of 2)
Symbol
Parameter
Conditions
Minimum
Typical
Maximum
3.6
Units
VCCIO
TT/VREF
Output supply voltage
3.0
3.3
1.5
V
V
V
Termination and input
reference voltage
1.35
1.65
VIH
VIL
High-level input voltage
Low-level input voltage
VREF + 0.2
V
V
VREF – 0.2
Altera Corporation
June 2006
6–21
Stratix GX Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
