EP4CE55F23C8 Altera, EP4CE55F23C8 Datasheet - Page 115

• Manufacturer Part Number: EP4CE55F23C8
• Description: IC CYCLONE IV FPGA 55K 484FBGA
• Manufacturer: Altera
• Series: CYCLONE® IV Er

Specifications of EP4CE55F23C8

• Number Of Logic Elements/cells: 55856
• Number Of Labs/clbs: 3491
• Total Ram Bits: 2340000
• Number Of I /o: 324
• Voltage - Supply: 1.15 V ~ 1.25 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 484-FBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Gates: -

Chapter 6: I/O Features in Cyclone IV Devices
OCT Support
OCT Support
Table 6–2. Cyclone IV Device I/O Features Support (Part 1 of 2)
© December 2010 Altera Corporation
3.3-V LVTTL
3.3-V LVCMOS
3.0-V LVTTL
3.0-V LVCMOS
3.0-V PCI/PCI-X
2.5-V LVTTL/LVCMOS
1.8-V LVTTL/LVCMOS
1.5-V LVCMOS
1.2-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
HSTL-12 Class I
HSTL-12 Class II
I/O Standard
1
2,4,6,8,10,12,16
2,4,6,8,10,12,16
Cyclone IV devices feature OCT to provide I/O impedance matching and termination
capabilities. OCT helps prevent reflections and maintain signal integrity while
minimizing the need for external resistors in high pin-count ball grid array (BGA)
packages. Cyclone IV devices provide I/O driver on-chip impedance matching and
R
When using R
There are two ways to implement OCT in Cyclone IV devices:
■
■
Table 6–2
termination.
IOH/IOL Current Strength Setting
2,4,6,8,10,12
S
Column I/O
4,8,12,16
4,8,12,16
4,8,12,16
OCT for single-ended outputs and bidirectional pins.
8,10,12
8,10,12
8,10,12
8,10,12
OCT with calibration
OCT without calibration
12,16
8,12
4,8
—
16
16
16
14
2
lists the I/O standards that support impedance matching and series
(mA)
S
(1)
2,4,6,8,10,12,16
2,4,6,8,10,12,16
OCT, programmable current strength is not available.
2,4,6,8,10
4,8,12,16
4,8,12,16
4,8,12,16
Row I/O
8,10,12
8,10,12
8,10,12
12,16
8,12
8,10
4,8
—
16
16
16
—
2
Column
Setting, Ohm ()
50,25
50,25
50,25
50,25
50,25
50,25
I/O
—
—
—
50
25
50
25
50
25
50
25
50
25
R
Calibration
S
OCT with
I/O(8)
50,25
50,25
50,25
50,25
50,25
Row
—
—
—
50
50
25
50
25
50
25
50
25
50
—
Column
Setting, Ohm ()
50,25
50,25
50,25
50,25
50,25
50,25
R
I/O
—
—
—
50
25
50
25
50
25
50
25
50
25
S
Calibration
OCT Without
I/O(8)
50,25
50,25
50,25
50,25
50,25
Cyclone IV Device Handbook, Volume 1
Row
—
—
—
50
50
25
50
25
50
25
50
25
50
—
Cyclone
Support
1,2,3,4,
IV E I/O
5,6,7,8
3,4,7,8
Banks
IV GX I/O
4,5,6,7,8
4,5,6,7,8
Cyclone
Support
3,4,5,6,
3,4,5,6,
Banks
7,8,9
7,8,9
4,7,8
Option
6–7
Slew
Rate
0,1,2
0,1,2
(6)
—
—
—
Support
clamp
Diode
PCI-
v
v
v
v
v
v
—
—
—
—
—
—
—
—
—
—
—
—
—