HC210 datasheet(53/228 Pages) ALTERA

53 / 228 page

Altera Corporation

4–11

September 2008

I/O Standard Specifications

Table 4–14. 3.3-V PCI Specifications

Symbol

Parameter

Conditions

Minimum

Typical

Maximum

Unit

VCCIO

Output-supply voltage

—

3.3

3.6

VIH

High-level input voltage

—

0.5 × VCCIO

—VCCIO + 0.5

VIL

Low-level input voltage

—

-0.3

—

0.3 × VCCIO

VOH

High-level output voltage

IOUT = -500 µA

0.9 × VCCIO

——

VOL

Low-level output voltage

IOUT = 1,500 µA

—

0.1 × VCCIO

Table 4–15. PCI-X Mode 1 Specifications

Symbol

Parameter

Conditions

Minimum

Typical

Maximum

Unit

VCCIO

Output-supply voltage

—

3.6

VIH

High-level input voltage

—

0.5 × VCCIO

—VCCIO + 0.5

VIL

Low-level input voltage

—

-0.3

—

0.35 × VCCIO

VIPU

Input pull-up voltage

—

0.7 × VCCIO

——

VOH

High-level output voltage

IOUT = -500 µA

0.9 × VCCIO

——

VOL

Low-level output voltage

IOUT = 1,500 µA

—

0.1 × VCCIO

Table 4–16. SSTL-18 Class I Specifications (Part 1 of 2)

Symbol

Parameter

Conditions

Minimum

Typical

Maximum

Unit

VCCIO

Output-supply voltage

—

1.71

1.8

1.89

VREF

Reference voltage

—

0.855

0.9

0.945

VTT

Termination voltage

—

VREF – 0.04

VREF

VREF + 0.04

VIH(DC)

High-level DC input voltage

—

VREF + 0.125

—

VIL(DC)

Low-level DC input voltage

—

VREF – 0.125

VIH(AC)

High-level AC input voltage

—

VREF + 0.25

—

VIL(AC)

Low-level AC input voltage

—

VREF – 0.25

VOH

High-level output voltage

IOH = -6.7 mA (1), (2)

VTT + 0.475

—

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