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参数资料
型号： EP1C4T144I8ES
厂商： Altera Corporation
英文描述： Cyclone FPGA Family Data Sheet
中文描述： 气旋的FPGA系列数据手册
文件页数： 58/104页
文件大小： 763K
代理商： EP1C4T144I8ES
2–52
Preliminary
Altera Corporation
January 2007
Cyclone Device Handbook, Volume 1
Advanced I/O Standard Support
Cyclone device IOEs support the following I/O standards:
■
■
■
■
■
■
■
■
■
■
3.3-V LVTTL/LVCMOS
2.5-V LVTTL/LVCMOS
1.8-V LVTTL/LVCMOS
1.5-V LVCMOS
3.3-V PCI
LVDS
RSDS
SSTL-2 class I and II
SSTL-3 class I and II
Differential SSTL-2 class II (on output clocks only)
Table 2–12
describes the I/O standards supported by Cyclone devices.
Cyclone devices contain four I/O banks, as shown in
Figure 2–35
. I/O
banks 1 and 3 support all the I/O standards listed in
Table 2–12
. I/O
banks 2 and 4 support all the I/O standards listed in
Table 2–12
except the
3.3-V PCI standard. I/O banks 2 and 4 contain dual-purpose DQS, DQ,
Table 2–12. Cyclone I/O Standards
I/O Standard
Type
Input Reference
Voltage (V
REF
) (V)
Output Supply
Voltage (V
CCIO
) (V)
Board
Termination
Voltage (V
TT
) (V)
3.3-V LVTTL/LVCMOS
Single-ended
N
/A
3.3
N
/A
2.5-V LVTTL/LVCMOS
Single-ended
N
/A
2.5
N
/A
1.8-V LVTTL/LVCMOS
Single-ended
N
/A
1.8
N
/A
1.5-V LVCMOS
Single-ended
N
/A
1.5
N
/A
3.3-V PCI
(1)
Single-ended
N
/A
3.3
N
/A
LVDS
(2)
Differential
N
/A
2.5
N
/A
RSDS
(2)
Differential
N
/A
2.5
N
/A
SSTL-2 class I and II
Voltage-referenced
1.25
2.5
1.25
SSTL-3 class I and II
Voltage-referenced
1.5
3.3
1.5
Differential SSTL-2
(3)
Differential
1.25
2.5
1.25
Notes to
Table 2–12
:
(1)
There is no megafunction support for EP1C3 devices for the PCI compiler. However, EP1C3 devices support PCI
by using the LVTTL 16-mA I/O standard and drive strength assignments in the Quartus II software. The device
requires an external diode for PCI compliance.
(2)
EP1C3 devices in the 100-pin TQFP package do not support the LVDS and RSDS I/O standards.
(3)
This I/O standard is only available on output clock pins (
PLL_OUT
pins). EP1C3 devices in the 100-pin package
do not support this I/O standard as it does not have
PLL_OUT
pins.
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