Operating Conditions
Table 5–9. 1.5-V I/O Specifications
Symbol
Parameter
Conditions
Minimum
Maximum
Unit
VOL
Low-level output
voltage
0.25 × VCCIO
V
IOL = 2 mA (1)
Notes to Tables 5–5 through 5–9:
(1) This specification is supported across all the programmable drive strength settings available for this I/O standard,
as shown in the MAX II Architecture chapter (I/O Structure section) of the MAX II Device Handbook.
(2) This maximum VIH reflects the JEDEC specification. The MAX II input buffer can tolerate a VIH maximum of 4.0 as
specified by the VI parameter in Table 5–2.
Table 5–10. 3.3-V PCI Specifications
Symbol
Parameter
Conditions
Minimum
Typical
Maximum
Unit
VCCIO
I/O supply
voltage
3.0
3.3
3.6
V
VIH
VIL
High-level
input voltage
0.5 × VCCIO
–0.5
VCCIO + 0.5
0.3 × VCCIO
V
V
V
V
Low-level
input voltage
VOH
VOL
High-level
output voltage
IOH = –500 μA
0.9 × VCCIO
Low-level
IOL = 1.5 mA
0.1 × VCCIO
output voltage
Bus Hold Specifications
Table 5–11 shows the MAX II device family bus hold specifications.
Table 5–11. Bus Hold Specifications (Part 1 of 2)
VCCIO Level
1.8 V 2.5 V
Min Max Min Max Min Max Min Max
Parameter
Conditions
Unit
1.5 V
3.3 V
Low sustaining
current
VIN > VIL (maximum)
VIN < VIH (minimum)
20
30
50
70
μA
μA
High sustaining
current
–20
–30
-50
–70
5–8
Core Version a.b.c variable
Altera Corporation
July 2006
MAX II Device Handbook, Volume 1
INTEL [ INTEL ]
