參數(shù)資料
型號: LC4128x
廠商: Lattice Semiconductor Corporation
英文描述: 3.3V/2.5V/1.8V In-System Programmable SuperFAST High density PDLs
中文描述: 3.3V/2.5V/1.8V在系統(tǒng)可編程超快高密度PDLs
文件頁數(shù): 7/91頁
文件大?。?/td> 851K
代理商: LC4128X
Lattice Semiconductor
ispMACH 4000V/B/C/Z Family Data Sheet
7
Table 5. Product Term Expansion Capability
Every time the super cluster allocator is used, there is an incremental delay of t
tor is used, all destinations other than the one being steered to, are given the value of ground (i.e., if the super clus-
ter is steered to M (n+4), then M (n) is ground).
EXP
. When the super cluster alloca-
Macrocell
The 16 macrocells in the GLB are driven by the 16 outputs from the logic allocator. Each macrocell contains a pro-
grammable XOR gate, a programmable register/latch, along with routing for the logic and control functions.
Figure 5 shows a graphical representation of the macrocell. The macrocells feed the ORP and GRP. A direct input
from the I/O cell allows designers to use the macrocell to construct high-speed input registers. A programmable
delay in this path allows designers to choose between the fastest possible set-up time and zero hold time.
Figure 5. Macrocell
Enhanced Clock Multiplexer
The clock input to the
fl
ip-
fl
op can select any of the four block clocks along with the shared PT clock, and true and
complement forms of the optional individual term clock. An 8:1 multiplexer structure is used to select the clock. The
eight sources for the clock multiplexer are as follows:
Block CLK0
Block CLK1
Expansion
Chains
Macrocells Associated with Expansion Chain
(with Wrap Around)
Max PT/
Macrocell
Chain-0
M0
M4
M8
M12
M0
75
Chain-1
M1
M5
M9
M13
M1
80
Chain-2
M2
M6
M10
M14
M2
75
Chain-3
M3
M7
M11
M15
M3
70
Single PT
Block CLK0
Block CLK1
Block CLK2
Block CLK3
PT Clock (optional)
Shared PT Clock
CE
D/T/L
Q
R
P
Shared PT Initialization
PT Initialization/CE (optional)
PT Initialization (optional)
From Logic Allocator
Power-up
Initialization
To ORP
To GRP
From I/O Cell
Delay
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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LC4128ZC-42M132C1 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:3.3V/2.5V/1.8V In-System Programmable SuperFAST High density PDLs
LC4128ZC-42M2-75I 制造商:Lattice Semiconductor Corporation 功能描述:Electronic Component
LC4128ZC-42MN132C 功能描述:CPLD - 復(fù)雜可編程邏輯器件 PROGRAMMABLE SUPER FAST HI DENSITY PLD RoHS:否 制造商:Lattice 系列: 存儲類型:EEPROM 大電池數(shù)量:128 最大工作頻率:333 MHz 延遲時間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100
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