參數(shù)資料
型號(hào)： LC5256MC-4F256C
廠商： LATTICE SEMICONDUCTOR CORP
元件分類： PLD
英文描述： 3.3V, 2.5V and 1.8V In-System Programmable eXpanded Programmable Logic Device XPLD⑩ Family
中文描述： EE PLD, 4.8 ns, PBGA256
封裝： FPBGA-256
文件頁(yè)數(shù)： 12/92頁(yè)
文件大?。?/td> 378K
代理商： LC5256MC-4F256C
Lattice Semiconductor
ispXPLD 5000MX Family Data Sheet
12
Single-Port SRAM Mode
In Single-Port SRAM Mode the multi-function array is con
fi
gured as a single-port SRAM. In this mode one ports
accesses 16,384-bits of memory. Data widths of 1, 2, 4, 8, 16 and 32 are supported by the MFB. Figure 11 shows
the block diagram of the single-port SRAM.
Write data, address, chip select and read/write signals are always synchronous (registered.) The output data sig-
nals can be synchronous or asynchronous. Reset is asynchronous. All signals share a common clock, clock
enable, and reset. Table 7 shows the possible sources for the clock, clock enable and reset signals.
Figure 11. Single-Port SRAM Block Diagram
Table 7. Register Clock, Clock Enable, and Reset in Single-Port SRAM Mode
Register
Input
Source
Address, Write Data,
Read Data, Read/
Write, and Chip
Select
Clock
CLK or one of the global clocks (CLK0 - CLK3). Each of these signals can
be inverted if required.
CEN or one of the global clocks (CLK1 - CLK 2). Each of these signals can
be inverted if required.
Created by the logical OR of the global reset signal and RST. RST is routed
by the multifunction array from GRP, with inversion if desired.
Clock Enable
Reset
‘
68 Inputs
from
Routing
RESET
CLK0
CLK1
CLK2
16,384-Bit
SRAM
Array
Clock
(CLK)
Read/Write Address
(AD[0-8:13])
Write/Read
(WR)
Chip Select
(CS0,1)
Reset
(RST)
Clk Enable
(CEN)
Write Data
(DI[0-0,1,3,7,15,31])
Read Data
(DO[0-0,31])
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相關(guān)代理商/技術(shù)參數(shù)
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LC5256MC-4F256I 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:3.3V, 2.5V and 1.8V In-System Programmable eXpanded Programmable Logic Device XPLD⑩ Family
LC5256MC-4F484C 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:3.3V, 2.5V and 1.8V In-System Programmable eXpanded Programmable Logic Device XPLD⑩ Family
LC5256MC-4F484I 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:3.3V, 2.5V and 1.8V In-System Programmable eXpanded Programmable Logic Device XPLD⑩ Family
LC5256MC-4F672C 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:3.3V, 2.5V and 1.8V In-System Programmable eXpanded Programmable Logic Device XPLD⑩ Family
LC5256MC-4F672I 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:3.3V, 2.5V and 1.8V In-System Programmable eXpanded Programmable Logic Device XPLD⑩ Family
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