HC210 datasheet(59/228 Pages) ALTERA

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4–17

September 2008

I/O Standard Specifications

VOL

Low-level output voltage

IOL = -8 mA (1), (2)

——

0.4

Notes to Table 4–25:

(1)

This specification is supported across all the programmable drive settings available for this I/O standard as shown

in the I/O Structure and Features section located in the Description, Architecture, and Features chapter of the HardCopy

Series Devices Handbook.

(2)

Drive strength varies based on pin location. Refer to the Description, Architecture, and Features chapter in the

HardCopy II Device Family Data Sheet section in volume 1 of the HardCopy Series Handbook for more information.

Table 4–25. 1.8-V HSTL Class I Specifications (Part 2 of 2)

Symbol

Parameter

Conditions

Minimum

Typical

Maximum

Unit

Table 4–26. 1.8-V HSTL Class II Specifications

Symbol

Parameter

Conditions

Minimum

Typical

Maximum

Unit

VCCIO

Output-supply voltage

—

1.71

1.8

1.89

VREF

Input reference voltage

—

0.85

0.9

0.95

VTT

Termination voltage

—

0.85

0.9

0.95

VIH (DC)

DC high-level input voltage

—

VREF + 0.1

—

VIL (DC)

DC low-level input voltage

—

-0.3

—

VREF – 0.1

VIH (AC)

AC high-level input voltage

—

VREF + 0.2

—

VIL (AC)

AC low-level input voltage

—

VREF – 0.2

VOH

High-level output voltage

IOH = 16 mA (1), (2)

VCCIO – 0.4

—

VOL

Low-level output voltage

IOL= -16 mA (1), (2)

——

0.4

Notes to Table 4–26:

(1)

This specification is supported across all the programmable drive settings available for this I/O standard as shown

in the I/O Structure and Features section located in the Description, Architecture, and Features chapter in volume 1 of

the HardCopy Series Devices Handbook.

(2)

Drive strength varies based on pin location. Refer to the Description, Architecture, and Features chapter in the

HardCopy II Device Family Data Sheet section in volume 1 of the HardCopy Series Handbook for more information.

Table 4–27. 1.8-V Differential HSTL Specifications (Part 1 of 2)

Symbol

Parameter

Conditions

Minimum

Typical

Maximum

Unit

VCCIO

I/O supply voltage

—

1.71

1.8

1.89

VDIF (DC)

DC input differential voltage

—

0.2

—

VCCIO + 0.6 V

VCM (DC)

DC common mode input voltage

—

0.78

—

1.12

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