参数资料
| 型号： | EPF8452ALC84-4 |
| 厂商： | Altera |
| 文件页数： | 7/62页 |
| 文件大小： | 0K |
| 描述： | IC FLEX 8000A FPGA 4K 84-PLCC |
| 产品培训模块： | Three Reasons to Use FPGA's in Industrial Designs |
| 标准包装： | 75 |
| 系列： | FLEX 8000 |
| LAB/CLB数： | 42 |
| 逻辑元件/单元数： | 336 |
| 输入/输出数： | 68 |
| 门数： | 4000 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 安装类型： | 表面贴装 |
| 工作温度： | 0°C ~ 85°C |
| 封装/外壳： | 84-LCC（J 形引线） |
| 供应商设备封装： | 84-PLCC（29.31x29.31） |
| 产品目录页面： | 602 (CN2011-ZH PDF) |
| 其它名称： | 544-2257-5 |
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Altera Corporation
15
FLEX 8000 Programmable Logic Device Family Data Sheet
FL
EX
800
0
3
Asynchronous Clear
A register is cleared by one of the two LABCTRL signals. When the CLRn
port receives a low signal, the register is set to zero.
Asynchronous Preset
An asynchronous preset is implemented as either an asynchronous load
or an asynchronous clear. If DATA3 is tied to VCC, asserting LABCTRLl
asynchronously loads a 1 into the register. Alternatively, the
MAX+PLUS II software can provide preset control by using the clear and
inverting the input and output of the register. Inversion control is
available for the inputs to both LEs and IOEs. Therefore, if a register is
preset by only one of the two LABCTRL signals, the DATA3 input is not
needed and can be used for one of the LE operating modes.
Asynchronous Clear & Preset
When implementing asynchronous clear and preset, LABCTRL1 controls
the preset and LABCTRL2 controls the clear. The DATA3 input is tied to VCC;
therefore, asserting LABCTRL1 asynchronously loads a 1 into the register,
effectively presetting the register. Asserting LABCTRL2 clears the register.
Asynchronous Load with Clear
When implementing an asynchronous load with the clear, LABCTRL1
implements the asynchronous load of DATA3 by controlling the register
preset and clear. LABCTRL2 implements the clear by controlling the
register clear.
Asynchronous Load with Preset
When implementing an asynchronous load in conjunction with a preset,
the MAX+PLUS II software provides preset control by using the clear and
inverting the input and output of the register. Asserting LABCTRL2 clears
the register, while asserting LABCTRL1 loads the register. The
MAX+PLUS II software inverts the signal that drives the DATA3 signal to
account for the inversion of the register’s output.
Asynchronous Load without Clear or Preset
When implementing an asynchronous load without the clear or preset,
LABCTRL1
implements the asynchronous load of DATA3 by controlling the
register preset and clear.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EPF8452ALC844N | 制造商:Altera Corporation 功能描述:FPGA FLEX 8000 Family 4K Gates 336 Cells 125MHz CMOS Technology 5V 84-Pin PLCC 制造商:Altera 功能描述:FPGA FLEX 8000 Family 4K Gates 336 Cells 125MHz CMOS Technology 5V 84-Pin PLCC |
| EPF8452ALC84-4N | 功能描述:FPGA - 现场可编程门阵列 FPGA - Flex 8000 42 LABs 68 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 |
| EPF8452ALC84-6 | 制造商:Altera Corporation 功能描述:Field-Programmable Gate Array, 336 Cell, 84 Pin, Plastic, PLCC |
| EPF8452ALI84-3 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Field Programmable Gate Array (FPGA) |
| EPF8452ALI84-4 | 功能描述:FPGA - 现场可编程门阵列 FPGA - Flex 8000 42 LABs 68 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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