參數(shù)資料
型號: LFECP15E-3F484C
廠商: LATTICE SEMICONDUCTOR CORP
元件分類: FPGA
英文描述: LatticeECP/EC Family Data Sheet
中文描述: FPGA, 1920 CLBS, 15400 GATES, 420 MHz, PBGA484
封裝: 23 X 23 MM, FPBGA-484
文件頁數(shù): 27/117頁
文件大小: 557K
代理商: LFECP15E-3F484C
2-24
Architecture
Lattice Semiconductor
LatticeECP/EC Family Data Sheet
Figure 2-26. Input Register DDR Waveforms
Figure 2-27. INDDRXB Primitive
Output Register Block
The output register block provides the ability to register signals from the core of the device before they are passed
to the sysIO buffers. The block contains a register for SDR operation that is combined with an additional latch for
DDR operation. Figure 2-28 shows the diagram of the Output Register Block.
In SDR mode, ONEG0 feeds one of the
fl
ip-
fl
ops that then feeds the output. The
fl
ip-
fl
op can be con
fi
gured a D-
type or latch. In DDR mode, ONEG0 is fed into one register on the positive edge of the clock and OPOS0 is
latched. A multiplexer running off the same clock selects the correct register for feeding to the output (D0).
Figure 2-29 shows the design tool DDR primitives. The SDR output register has reset and clock enable available.
The additional register for DDR operation does not have reset or clock enable available.
A
B
C
D
E
F
B
D
DI
(In DDR Mode)
D0
D2
DQS
A
C
DQS
Delayed
IDDRXB
LSR
SCLK
CE
QA
D
ECLK
QB
DDRCLKPOL
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LFECP15E-3F484I 功能描述:FPGA - 現(xiàn)場可編程門陣列 15.4K LUTs 352 I/O 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
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