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| 型号： | EP1C6Q144C6ES |
| 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： | 61/104页 |
| 文件大小： | 763K |
| 代理商： | EP1C6Q144C6ES |
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Altera Corporation
January 2007
2–55
Preliminary
Power Sequencing & Hot Socketing
The Cyclone V
CCINT
pins must always be connected to a 1.5-V power
supply. If the V
CCINT
level is 1.5 V, then input pins are 1.5-V, 1.8-V, 2.5-V,
and 3.3-V tolerant. The V
CCIO
pins can be connected to either a 1.5-V, 1.8-V,
2.5-V, or 3.3-V power supply, depending on the output requirements. The
output levels are compatible with systems of the same voltage as the
power supply (i.e., when V
CCIO
pins are connected to a 1.5-V power
supply, the output levels are compatible with 1.5-V systems). When V
CCIO
pins are connected to a 3.3-V power supply, the output high is 3.3-V and
is compatible with 3.3-V or 5.0-V systems.
Table 2–14
summarizes
Cyclone MultiVolt I/O support.
Power
Sequencing &
Hot Socketing
Because Cyclone devices can be used in a mixed-voltage environment,
they have been designed specifically to tolerate any possible power-up
sequence. Therefore, the V
CCIO
and V
CCINT
power supplies may be
powered in any order.
Signals can be driven into Cyclone devices before and during power up
without damaging the device. In addition, Cyclone devices do not drive
out during power up. Once operating conditions are reached and the
device is configured, Cyclone devices operate as specified by the user.
Table 2–14. Cyclone MultiVolt I/O Support
Note (1)
V
CCIO
(V)
Input Signal
Output Signal
1.5 V
v
v
1.8 V
v
v
2.5 V
v
(2)
v
(2)
v
v
(4)
3.3 V
v
(2)
v
(2)
v
v
5.0 V
1.5 V
v
v
(3)
v
(5)
v
(7)
1.8 V
2.5 V
3.3 V
5.0 V
1.5
1.8
v
2.5
v
(5)
v
(7)
v
3.3
v
(6)
v
(7)
v
v
(8)
Notes to
Table 2–14
:
(1)
The PCI clamping diode must be disabled to drive an input with voltages higher than V
CCIO
.
(2)
When V
CCIO
= 1.5-V or 1.8-V and a 2.5-V or 3.3-V input signal feeds an input pin, higher pin leakage current is
expected. Turn on
Allow voltage overdrive for LVTTL / LVCMOS input pins
in the Assignments > Device >
Device and Pin Options > Pin Placement tab when a device has this I/O combinations.
(3)
When V
CCIO
= 1.8-V, a Cyclone device can drive a 1.5-V device with 1.8-V tolerant inputs.
(4)
When V
CCIO
= 3.3-V and a 2.5-V input signal feeds an input pin, the V
CCIO
supply current will be slightly larger
than expected.
(5)
When V
CCIO
= 2.5-V, a Cyclone device can drive a 1.5-V or 1.8-V device with 2.5-V tolerant inputs.
(6)
Cyclone devices can be 5.0-V tolerant with the use of an external resistor and the internal PCI clamp diode.
(7)
When V
CCIO
= 3.3-V, a Cyclone device can drive a 1.5-V, 1.8-V, or 2.5-V device with 3.3-V tolerant inputs.
(8)
When V
CCIO
= 3.3-V, a Cyclone device can drive a device with 5.0-V LVTTL inputs but not 5.0-V LVCMOS inputs.
相关PDF资料 |
PDF描述 |
|---|---|
| EP1C6Q144C7ES | Cyclone FPGA Family Data Sheet |
| EP1C6Q144C8ES | Cyclone FPGA Family Data Sheet |
| EP1C6T144I7ES | Cyclone FPGA Family Data Sheet |
| EP1C6T144I8ES | Cyclone FPGA Family Data Sheet |
| EP1C6T240C6ES | Cyclone FPGA Family Data Sheet |
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| EP1C6Q240C6 | 功能描述:FPGA - 现场可编程门阵列 FPGA - Cyclone I 598 LABs 185 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 栅极数量: 逻辑块数量:943 内嵌式块RAM - EBR:1956 kbit 输入/输出端数量:128 最大工作频率:800 MHz 工作电源电压:1.1 V 最大工作温度:+ 70 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-256 |
| EP1C6Q240C6N | 功能描述:FPGA - 现场可编程门阵列 FPGA - Cyclone I 598 LABs 185 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 栅极数量: 逻辑块数量:943 内嵌式块RAM - EBR:1956 kbit 输入/输出端数量:128 最大工作频率:800 MHz 工作电源电压:1.1 V 最大工作温度:+ 70 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-256 |
| EP1C6Q240C7 | 功能描述:FPGA - 现场可编程门阵列 FPGA - Cyclone I 598 LABs 185 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 栅极数量: 逻辑块数量:943 内嵌式块RAM - EBR:1956 kbit 输入/输出端数量:128 最大工作频率:800 MHz 工作电源电压:1.1 V 最大工作温度:+ 70 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-256 |
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| EP1C6Q240C8 | 功能描述:FPGA - 现场可编程门阵列 FPGA - Cyclone I 598 LABs 185 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 栅极数量: 逻辑块数量:943 内嵌式块RAM - EBR:1956 kbit 输入/输出端数量:128 最大工作频率:800 MHz 工作电源电压:1.1 V 最大工作温度:+ 70 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-256 |
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