ep2c35 Altera Corporation, ep2c35 Datasheet - Page 95

• Manufacturer Part Number: ep2c35
• Description: Cyclone Ii Device Family Data Sheet
• Manufacturer: Altera Corporation

Altera Corporation
February 2008
3.3-V LVTTL and
LVCMOS
2.5-V LVTTL and
LVCMOS
1.8-V LVTTL and
LVCMOS
1.5-V LVCMOS
PCI and PCI-X
SSTL-2 class I
SSTL-2 class II
SSTL-18 class I
Table 5–6. Recommended Operating Conditions for User I/O Pins Using Single-Ended I/O Standards
Note (1)
I/O Standard
(Part 1 of 2)
3.135
2.375
1.710
1.425
3.000
2.375
2.375
Min
1.7
V
CCIO
Typ
3.3
2.5
1.8
3.3
2.5
2.5
1.8
1.5
Single-Ended I/O Standards
Tables 5–6
single-ended I/O standards with Cyclone II devices.
descriptions for the voltage and current symbols used in
5–7.
V
V
V
V
V
V
I
I
V
O L
O H
Table 5–5. Voltage and Current Symbol Definitions
C C I O
R E F
I L
I H
O L
O H
T T
(V)
Symbol
3.465
2.625
1.890
1.575
3.600
2.625
2.625
Max
1.9
and
0.833
1.19
1.19
Min
5–7
—
—
—
—
—
Supply voltage for single-ended inputs and for output drivers
Reference voltage for setting the input switching threshold
Input voltage that indicates a low logic level
Input voltage that indicates a high logic level
Output voltage that indicates a low logic level
Output voltage that indicates a high logic level
Output current condition under which V
Output current condition under which V
Voltage applied to a resistor termination as specified by
HSTL and SSTL standards
provide operating condition information when using
V
REF
1.25
1.25
Typ
0.9
—
—
—
—
—
(V)
DC Characteristics and Timing Specifications
0.969
Max
1.31
1.31
—
—
—
—
—
Cyclone II Device Handbook, Volume 1
V
V
V
V
V
V
R E F
R E F
R E F
R E F
R E F
R E F
0.35 × V
0.35 × V
0.3 × V
Definition
– 0.125 (DC)
V
– 0.18 (DC)
– 0.18 (DC)
– 0.35 (AC)
– 0.35 (AC)
– 0.25 (AC)
Max
IL
0.8
0.7
(V)
C C I O
C C I O
C C I O
Table 5–5
O L
O H
V
V
V
V
V
V
R E F
is tested
R E F
R E F
R E F
R E F
R E F
Tables 5–6
is tested
0.65 × V
0.65 × V
0.5 × V
+ 0.125 (DC)
V
+ 0.18 (DC)
+ 0.18 (DC)
+ 0.35 (AC)
+ 0.35 (AC)
+ 0.25 (AC)
Min
IH
1.7
1.7
provides
(V)
C C I O
C C I O
C C I O
and
5–5