Figure 3-10. Read Before Write (SP Read/Write on Port A, Input Registers Only" />
參數(shù)資料
型號: LFECP20E-4FN672I
廠商: Lattice Semiconductor Corporation
文件頁數(shù): 116/163頁
文件大?。?/td> 0K
描述: IC FPGA 19.7KLUTS 672FPBGA
標準包裝: 40
系列: ECP
邏輯元件/單元數(shù): 19700
RAM 位總計: 434176
輸入/輸出數(shù): 400
電源電壓: 1.14 V ~ 1.26 V
安裝類型: 表面貼裝
工作溫度: -40°C ~ 100°C
封裝/外殼: 672-BBGA
供應商設(shè)備封裝: 672-FPBGA(27x27)
3-20
DC and Switching Characteristics
LatticeECP/EC Family Data Sheet
Figure 3-10. Read Before Write (SP Read/Write on Port A, Input Registers Only)
Note: Input data and address are registered at the positive edge of the clock and output data appears after the positive edge of the clock.
Figure 3-11. Write Through (SP Read/Write On Port A, Input Registers Only)
Note: Input data and address are registered at the positive edge of the clock and output data appears after the positive edge of the clock.
A0
A1
A0
A1
D0
D1
D2
DOA
A0
D2
D3
D1
old A0 Data
old A1 Data
D0
D1
DIA
ADA
WEA
CSA
CLKA
tSU tH
tACCESS
A0
A1
A0
D0
D1
D4
tSU
tACCESS
tH
D2
D3
D4
D0
D1
D2
Data from Prev Read
or Write
Three consecutive writes to A0
D3
DOA
DIA
ADA
WEA
CSA
CLKA
tACCESS
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