DC and Switching Characteristics
Table 5–5. 3.3-V LVTTL Specifications (Part 2 of 2)
Symbol
Parameter
Conditions
Minimum
Maximum
Unit
V
VOH
VOL
High-level output voltage
Low-level output voltage
2.4
—
I
OH = –4 mA (1)
—
0.45
V
IOL = 4 mA (1)
Table 5–6. 3.3-V LVCMOS Specifications
Symbol
Parameter
Conditions
Minimum
3.0
Maximum
Unit
V
VCCIO
I/O supply voltage
3.6
4.0
0.8
—
—
VIH
VIL
High-level input voltage
Low-level input voltage
High-level output voltage
1.7
V
—
—
–0.5
V
VOH
VCCIO = 3.0,
VCCIO – 0.2
V
I
OH = –0.1 mA (1)
VOL
Low-level output voltage
VCCIO = 3.0,
0.2
V
—
I
OL = 0.1 mA (1)
Table 5–7. 2.5-V I/O Specifications
Symbol
Parameter
Conditions
Minimum
2.375
1.7
Maximum
2.625
4.0
Unit
V
VCCIO
I/O supply voltage
—
—
—
VIH
VIL
High-level input voltage
Low-level input voltage
High-level output voltage
V
–0.5
2.1
0.7
V
VOH
V
IOH = –0.1 mA (1)
IOH = –1 mA (1)
IOH = –2 mA (1)
IOL = 0.1 mA (1)
IOL = 1 mA (1)
—
2.0
V
—
1.7
V
—
VOL
Low-level output voltage
0.2
V
—
0.4
V
—
0.7
V
IOL = 2 mA (1)
—
Table 5–8. 1.8-V I/O Specifications (Part 1 of 2)
Symbol
Parameter
I/O supply voltage
Conditions
Minimum
1.71
Maximum
Unit
V
VCCIO
1.89
—
—
—
VIH
VIL
High-level input voltage
Low-level input voltage
0.65 × VCCIO
–0.3
V
2.25 (2)
0.35 × VCCIO
V
Altera Corporation
July 2008
5–7
MAX II Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
