參數資料
型號: LFXP20E-3FN484C
廠商: LATTICE SEMICONDUCTOR CORP
元件分類: FPGA
中文描述: FPGA, 2464 CLBS, PBGA484
封裝: 23 X 23 MM, LEAD FREE, FPBGA-484
文件頁數: 39/130頁
文件大?。?/td> 1312K
代理商: LFXP20E-3FN484C
2-13
Architecture
Lattice Semiconductor
LatticeXP Family Data Sheet
Figure 2-14. sysMEM Memory Primitives
The EBR memory supports three forms of write behavior for single port or dual port operation:
1.
Normal – data on the output appears only during read cycle. During a write cycle, the data (at the current
address) does not appear on the output. This mode is supported for all data widths.
2.
Write Through -a copy of the input data appears at the output of the same port during a write cycle.This
mode is supported for all data widths.
3.
Read-Before-Write – when new data is being written, the old content of the address appears at the output.
This mode is supported for x9, x18 and x36 data widths.
Memory Core Reset
The memory array in the EBR utilizes latches at the A and B output ports. These latches can be reset asynchro-
nously. RSTA and RSTB are local signals, which reset the output latches associated with Port A and Port B respec-
tively. The Global Reset (GSRN) signal resets both ports. The output data latches and associated resets for both
ports are as shown in Figure 2-15.
EBR
AD[12:0]
DI[35:0]
CLK
CE
RST
WE
CS[2:0]
DO[35:0]
Single Port RAM
EBR
True Dual Port RAM
Pseudo-Dual Port RAM
ROM
AD[12:0]
CLK
CE
DO[35:0]
RST
CS[2:0]
EBR
ADA[12:0]
DIA[17:0]
CLKA
CEA
RSTA
WEA
CSA[2:0]
DOA[17:0]
ADB[12:0]
DIB[17:0]
CLKB
CEB
RSTB
WEB
CSB[2:0]
DOB[17:0]
ADW[12:0]
DI[35:0]
CLKW
CEW
ADR[12:0]
DO[35:0]
CER
CLKR
WE
RST
CS[2:0]
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相關代理商/技術參數
參數描述
LFXP20E-3FN484I 功能描述:FPGA - 現(xiàn)場可編程門陣列 19.7K LUTs 340 IO 1. 2V -3 Spd I RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數量: 邏輯塊數量:943 內嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數量: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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-256
LFXP20E-4F256C 功能描述:FPGA - 現(xiàn)場可編程門陣列 19.7K LUTs 188 IO 1. 2V -4 Spd RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數量: 邏輯塊數量:943 內嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數量: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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-256
LFXP20E-4F256I 功能描述:FPGA - 現(xiàn)場可編程門陣列 19.7K LUTs 188 IO 1. 2V -4 Spd I RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數量: 邏輯塊數量:943 內嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數量: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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-256
LFXP20E-4F388C 功能描述:FPGA - 現(xiàn)場可編程門陣列 19.7K LUTs 268 IO 1. 2V -4 Spd RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數量: 邏輯塊數量:943 內嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數量: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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-256
LFXP20E-4F388I 功能描述:FPGA - 現(xiàn)場可編程門陣列 19.7K LUTs 268 IO 1. 2V -4 Spd I RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數量: 邏輯塊數量:943 內嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數量: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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-256