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EP2C8AT324I7N Datasheet(PDF) 95 Page - Altera Corporation

Part No. EP2C8AT324I7N
Description  Section I. Cyclone II Device Family Data Sheet
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Manufacturer  ALTERA [Altera Corporation]
Direct Link  http://www.altera.com
Logo ALTERA - Altera Corporation

EP2C8AT324I7N Datasheet(HTML) 95 Page - Altera Corporation

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


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