EPM240_10 datasheet(65/88 Pages) ALTERA

部件名	EPM240

功能描述	MAX II Device Family Data

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制造商	ALTERA [Altera Corporation]

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65 / 88 page

Chapter 5: DC and Switching Characteristics

5–7

Operating Conditions

Altera Corporation

MAX II Device Handbook

Bus Hold Specifications

Table 5–11 shows the MAX II device family bus hold specifications.

Table 5–10. 3.3-V PCI Specifications (Note 1)

Symbol

Parameter

Conditions

Minimum

Typical

Maximum

Unit

V

CCIO

I/O supply

voltage

—3.0

3.3

3.6

V

IH

High-level input

voltage

—0.5 × V

CCIO

—V

CC IO + 0.5

V

IL

Low-level input

voltage

—

–0.5

—

0.3 × V

CC IO

V

OH

High-level

output voltage

IOH = –500 µA

0.9 × V

CCIO

——

V

OL

Low-level

output voltage

IOL = 1.5 mA

—

0.1 × V

CC IO

V

Note to Table 5–10:

(1) 3.3-V PCI I/O standard is only supported in Bank 3 of the EPM1270 and EPM2210 devices.

Table 5–11. Bus Hold Specifications

Parameter

Conditions

V

CCIO Level

Unit

1.5 V1.8 V2.5 V3.3 V

Min

Max

Min

Max

Min

Max

Min

Max

Low sustaining

current

V

IN > VIL (maximum)

20

—

30

—

50

—

70

—

µA

High sustaining

current

V

IN < VIH (minimum)

–20

—

–30

—

–50

—

–70

—

µA

Low overdrive

current

0 V < V

IN < VCCIO

—160

—200

—300

—500

µA

High overdrive

current

0 V < V

IN < VCCIO

—

–160

—

–200

—

–300

—

–500

µA

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