EP4CE40 datasheet(113/488 Pages) ALTERA

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Chapter 6: I/O Features in Cyclone IV Devices

6–7

OCT Support

May 2013

Altera Corporation

Cyclone IV Device Handbook,

Volume 1

Table 6–2 lists the I/O standards that support impedance matching and series

termination.

Table 6–2. Cyclone IV Device I/O Features Support (Part 1 of 2)

I/O Standard

IOH/IOL Current Strength

Setting (mA) (1), (9)

RS OCT with

Calibration

Setting, Ohm (

Ω)

RS OCT Without

Calibration

Setting, Ohm (

Ω)

Cyclone

IV E I/O

Banks

Support

Cyclone

IV GX I/O

Banks

Support

Slew

Rate

Option

(6)

PCI-

clamp

Diode

Support

Column I/O

Row I/O

Column

I/O

Row

I/O (8)

Column

I/O

Row

I/O (8)

3.3-V LVTTL

4,8

—

1,2,3,4,

5,6,7,8

3,4,5,6,

7,8,9

—

3.3-V LVCMOS

—

3.0-V LVTTL

4,8,12,16

50,25

0,1,2

3.0-V LVCMOS

4,8,12,16

50,25

3.0-V PCI/PCI-X

—

2.5-V

LVTTL/LVCMOS

4,8,12,16

50,25

0,1,2

1.8-V

LVTTL/LVCMOS

2,4,6,8,10,12,1

50,25

—

1.5-V LVCMOS

2,4,6,8,10,12,1

50,25

—

1.2-V LVCMOS

2,4,6,8,10,12

2,4,6,8,10

50,25

4,5,6,7,

—

SSTL-2 Class I

8,12

3,4,5,6,

7,8,9

—

SSTL-2 Class II

—

SSTL-18 Class I

8,10,12

—

SSTL-18 Class II

12,16

—

HSTL-18 Class I

8,10,12

—

HSTL-18 Class II

—

HSTL-15 Class I

8,10,12

—

HSTL-15 Class II

—

HSTL-12 Class I

8,10,12

8,10

4,5,6,7,

—

HSTL-12 Class II

—

3,4,7,8

4,7,8

—

Differential SSTL-2

Class I (2), (7)

8,12

1,2,3,4,

5,6,7,8

3,4,5,6,

7,8

0,1,2

—

Differential SSTL-2

Class II (2), (7)

—

Differential SSTL-

18 (2), (7)

8,10,12

—

Differential HSTL-

18 (2), (7)

8,10,12

—

Differential HSTL-

15 (2), (7)

8,10,12

—

Differential HSTL-

12 (2), (7)

8,10,12

—

3,4,7,8

4,7,8

—

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