ep2c35 Altera Corporation, ep2c35 Datasheet - Page 64

• Manufacturer Part Number: ep2c35
• Description: Cyclone Ii Device Family Data Sheet
• Manufacturer: Altera Corporation

I/O Structure & Features
2–52
Cyclone II Device Handbook, Volume 1
3.3-V LVTTL and LVCMOS
(1)
2.5-V LVTTL and LVCMOS
1.8-V LVTTL and LVCMOS
1.5-V LVCMOS
SSTL-2 class I
SSTL-2 class II
SSTL-18 class I
SSTL-18 class II
HSTL-18 class I
HSTL-18 class II
HSTL-15 class I
HSTL-15 class II
PCI and PCI-X
Differential SSTL-2 class I or
class II
Differential SSTL-18 class I
or class II
Table 2–17. Cyclone II Supported I/O Standards & Constraints (Part 1 of 2)
I/O Standard
(1) (3)
Advanced I/O Standard Support
Table 2–17
which I/O pins support them.
Single ended
Single ended
Single ended
Single ended
Voltage
referenced
Voltage
referenced
Voltage
referenced
Voltage
referenced
Voltage
referenced
Voltage
referenced
Voltage
referenced
Voltage
referenced
Single ended
Pseudo
differential
Pseudo
differential
Type
(4)
(4)
shows the I/O standards supported by Cyclone II devices and
3.3 V/
3.3 V/
1.8 V/
1.8 V/
Input Output
2.5 V
2.5 V
1.5 V
1.5 V
2.5 V
2.5 V
1.8 V
1.8 V
1.8 V
1.8 V
1.5 V
1.5 V
3.3 V
2.5 V
1.8 V
V
(5)
(5)
CCIO
Level
3.3 V
2.5 V
1.8 V
1.5 V
2.5 V
2.5 V
1.8 V
1.8 V
1.8 V
1.8 V
1.5 V
1.5 V
3.3 V
2.5 V
1.8 V
(5)
(5)
CLK,
DQS
Top & Bottom
v
v
v
v
v
v
v
v
v
v
v
v
v
v
(6)
(6)
I/O Pins
User I/O
Pins
v
v
v
v
v
v
v
v
v
v
v
v
CLK,
DQS
v
v
v
v
v
v
v
(2)
v
(2)
v
(2)
v
v
(6)
v
(6)
PLL_OUT
Side I/O Pins
v
Altera Corporation
v
v
v
v
v
v
v
v
v
v
v
(2)
(2)
(2)
(7)
February 2007
User I/O
Pins
v
v
v
v
v
v
v
v
v
v
(2)
(2)
(2)