參數(shù)資料
型號(hào): EPF81188A
廠商: Altera Corporation
英文描述: PROGRAMMABLE LOGIC DEVICES FAMILY
中文描述: 系列可編程邏輯元件
文件頁(yè)數(shù): 9/61頁(yè)
文件大?。?/td> 979K
代理商: EPF81188A
Altera Corporation
9
FLEX 8000 Programmable Logic Device Family Data Sheet
Figure 4. FLEX 8000 Carry Chain Operation
Cascade Chain
With the cascade chain, the FLEX 8000 architecture can implement
functions that have a very wide fan-in. Adjacent LUTs can be used to
compute portions of the function in parallel; the cascade chain serially
connects the intermediate values. The cascade chain can use a logical
AND
or logical
OR
(via De Morgan’s inversion) to connect the outputs of
adjacent LEs. Each additional LE provides four more inputs to the
effective width of a function, with a delay as low as 0.6 ns per LE.
LU
a1
b1
Carry
s1
LE
Register
a2
b2
Carry Chain
s2
LE
Register
Carry Chain
sn
LE
Register
an
bn
Carry Chain
Carry-Out
LEn + 1
Register
Carry-In
LUT
LUT
LUT
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參數(shù)描述
EPF81188AGI232-3 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field Programmable Gate Array (FPGA)
EPF81188AQC208-2 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門陣列 FPGA - Flex 8000 126 LABs 148 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
EPF81188AQC208-3 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門陣列 FPGA - Flex 8000 126 LABs 148 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
EPF81188AQC2084 制造商:ALTERA 功能描述:*
EPF81188AQC208-4 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門陣列 FPGA - Flex 8000 126 LABs 148 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256