參數(shù)資料
型號(hào)： LFXP15C-4FN256C
廠商： LATTICE SEMICONDUCTOR CORP
元件分類： FPGA
中文描述： FPGA, 1932 CLBS, PBGA256
封裝： 17 X 17 MM, LEAD FREE, FPBGA-256
文件頁數(shù)： 98/130頁
文件大小： 1312K
代理商： LFXP15C-4FN256C
2-4
Architecture
Lattice Semiconductor
LatticeXP Family Data Sheet
Table 2-1. Slice Signal Descriptions
Modes of Operation
Each Slice is capable of four modes of operation: Logic, Ripple, RAM and ROM. The Slice in the PFF is capable of
all modes except RAM. Table 2-2 lists the modes and the capability of the Slice blocks.
Table 2-2. Slice Modes
Logic Mode: In this mode, the LUTs in each Slice are configured as 4-input combinatorial lookup tables. A LUT4
can have 16 possible input combinations. Any logic function with four inputs can be generated by programming this
lookup table. Since there are two LUT4s per Slice, a LUT5 can be constructed within one Slice. Larger lookup
tables such as LUT6, LUT7 and LUT8 can be constructed by concatenating other Slices.
Ripple Mode: Ripple mode allows the efficient implementation of small arithmetic functions. In ripple mode, the fol-
lowing functions can be implemented by each Slice:
Addition 2-bit
Subtraction 2-bit
Add/Subtract 2-bit using dynamic control
Up counter 2-bit
Down counter 2-bit
Ripple mode multiplier building block
Comparator functions of A and B inputs
- A greater-than-or-equal-to B
- A not-equal-to B
- A less-than-or-equal-to B
Two additional signals: Carry Generate and Carry Propagate are generated per Slice in this mode, allowing fast
arithmetic functions to be constructed by concatenating Slices.
RAM Mode: In this mode, distributed RAM can be constructed using each LUT block as a 16x1-bit memory.
Through the combination of LUTs and Slices, a variety of different memories can be constructed.
Function
Type
Signal Names
Description
Input
Data signal
A0, B0, C0, D0 Inputs to LUT4
Input
Data signal
A1, B1, C1, D1 Inputs to LUT4
Input
Multi-purpose
M0
Multipurpose Input
Input
Multi-purpose
M1
Multipurpose Input
Input
Control signal
CE
Clock Enable
Input
Control signal
LSR
Local Set/Reset
Input
Control signal
CLK
System Clock
Input
Inter-PFU signal
FCIN
Fast Carry In
1
Output
Data signals
F0, F1
LUT4 output register bypass signals
Output
Data signals
Q0, Q1
Register Outputs
Output
Data signals
OFX0
Output of a LUT5 MUX
Output
Data signals
OFX1
Output of a LUT6, LUT7, LUT8
2 MUX depending on the slice
Output
Inter-PFU signal
FCO
For the right most PFU the fast carry chain output
1
1. See Figure 2-2 for connection details.
2. Requires two PFUs.
Logic
Ripple
RAM
ROM
PFU Slice
LUT 4x2 or LUT 5x1
2-bit Arithmetic Unit
SP 16x2
ROM 16x1 x 2
PFF Slice
LUT 4x2 or LUT 5x1
2-bit Arithmetic Unit
N/A
ROM 16x1 x 2
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參數(shù)描述
LFXP15C-4FN256I 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門陣列 15.4K LUTs 188 IO 1. 8/2.5/3.3V-4 Spd I 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
LFXP15C-4FN388C 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門陣列 15.4K LUTs 268 IO 1. 8/2.5/3.3V -4 Spd 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
LFXP15C-4FN388I 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門陣列 15.4K LUTs 268 IO 1. 8/2.5/3.3V-4 Spd I 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
LFXP15C-4FN484C 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門陣列 15.4K LUTs 1.8/2.5/3 .3V -4 Spd 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
LFXP15C-4FN484I 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門陣列 15.4K LUTs 1.8/2.5/3 .3V-4 Spd I 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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