Chapter 5: DC and Switching Characteristics
5–5
Operating Conditions
Output Drive Characteristics
Figure 5–1 shows the typical drive strength characteristics of MAX II devices.
Figure 5–1. Output Drive Characteristics of MAX II Devices
MAX II Output Drive IOH Characteristics
MAX II Output Drive IOL Characteristics
(Maximum Drive Strength)
(Maximum Drive Strength)
60
50
40
30
20
10
0
70
3.3-V VCCIO
3.3-V VCCIO
60
50
2.5-V VCCIO
2.5-V VCCIO
40
30
1.8-V VCCIO
1.5-V VCCIO
1.8-V VCCIO
20
1.5-V VCCIO
10
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Voltage (V)
Voltage (V)
MAX II Output Drive IOL Characteristics
(Minimum Drive Strength)
MAX II Output Drive IOH Characteristics
(Minimum Drive Strength)
30
25
20
15
10
5
35
3.3-V VCCIO
3.3-V VCCIO
30
25
20
15
10
5
2.5-V VCCIO
2.5-V VCCIO
1.8-V VCCIO
1.5-V VCCIO
1.8-V VCCIO
1.5-V VCCIO
0
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Voltage (V)
Voltage (V)
Note to Figure 5–1:
(1) The DC output current per pin is subject to the absolute maximum rating of Table 5–1.
I/O Standard Specifications
Table 5–5 through Table 5–10 show the MAX II device family I/O standard
specifications.
Table 5–5. 3.3-V LVTTL Specifications
Symbol
VCCIO
Parameter
Conditions
Minimum
3.0
Maximum
3.6
Unit
V
I/O supply voltage
—
—
—
VIH
VIL
High-level input voltage
Low-level input voltage
1.7
4.0
V
–0.5
2.4
0.8
V
VOH
VOL
High-level output voltage IOH = –4 mA (1)
Low-level output voltage IOL = 4 mA (1)
—
V
—
0.45
V
Table 5–6. 3.3-V LVCMOS Specifications (Part 1 of 2)
Symbol
VCCIO
Parameter
Conditions
Minimum
3.0
Maximum
3.6
Unit
V
I/O supply voltage
—
—
—
VIH
VIL
High-level input voltage
Low-level input voltage
1.7
4.0
V
–0.5
0.8
V
© Novermber 2008 Altera Corporation
MAX II Device Handbook
ALTERA [ ALTERA CORPORATION ]
