参数资料
型号: LC4512B-5F256C
厂商: LATTICE SEMICONDUCTOR CORP
元件分类: PLD
中文描述: EE PLD, 5 ns, PBGA256
封装: FPBGA-256
文件页数: 45/99页
文件大小: 760K
代理商: LC4512B-5F256C
Lattice Semiconductor
ispMACH 4000V/B/C/Z Family Data Sheet
5
Figure 3. AND Array
Enhanced Logic Allocator
Within the logic allocator, product terms are allocated to macrocells in product term clusters. Each product term
cluster is associated with a macrocell. The cluster size for the ispMACH 4000 family is 4+1 (total 5) product terms.
The software automatically considers the availability and distribution of product term clusters as it fits the functions
within a GLB. The logic allocator is designed to provide three speed paths: 5-PT fast bypass path, 20-PT Speed
Locking path and an up to 80-PT path. The availability of these three paths lets designers trade timing variability for
increased performance.
The enhanced Logic Allocator of the ispMACH 4000 family consists of the following blocks:
Product Term Allocator
Cluster Allocator
Wide Steering Logic
Figure 4 shows a macrocell slice of the Logic Allocator. There are 16 such slices in the GLB.
Figure 4. Macrocell Slice
PT0
PT1
Cluster 0
PT2
PT3
PT4
In[0]
In[34]
In[35]
Note:
Indicates programmable fuse.
PT80
PT81
PT82
Shared PT Clock
Shared PT Initialization
Shared PTOE
PT76
PT77
PT78
PT79
PT75
Cluster 15
to
n+1
to
n-1
to
n-2
from
n-1
from
n-4
from
n+2
from
n+1
5-PT
From
n-4
1-80
PTs
To n+4
Fast 5-PT
Path
To XOR (MC)
Cluster
Individual Product
Term Allocator
Cluster
Allocator
SuperWIDE
Steering Logic
n
相关PDF资料
PDF描述
LC4512V-5F256C
LC4256B-3F256AC
LC4384V-5T176I
LC4512B-5T176C
LC4384V-5FT256I
相关代理商/技术参数
参数描述
LC4512B-5F256C1 制造商:LATTICE 制造商全称:Lattice Semiconductor 功能描述:3.3V/2.5V/1.8V In-System Programmable SuperFAST High Density PLDs
LC4512B-5F256I 功能描述:CPLD - 复杂可编程逻辑器件 PROGRAMMABLE SUPER FAST HI DENSITY PLD RoHS:否 制造商:Lattice 系列: 存储类型:EEPROM 大电池数量:128 最大工作频率:333 MHz 延迟时间:2.7 ns 可编程输入/输出端数量:64 工作电源电压:3.3 V 最大工作温度:+ 90 C 最小工作温度:0 C 封装 / 箱体:TQFP-100
LC4512B-5F256I1 制造商:LATTICE 制造商全称:Lattice Semiconductor 功能描述:3.3V/2.5V/1.8V In-System Programmable SuperFAST High Density PLDs
LC4512B-5FN256C 功能描述:CPLD - 复杂可编程逻辑器件 PROGRAMMABLE SUPER FAST HI DENSITY PLD RoHS:否 制造商:Lattice 系列: 存储类型:EEPROM 大电池数量:128 最大工作频率:333 MHz 延迟时间:2.7 ns 可编程输入/输出端数量:64 工作电源电压:3.3 V 最大工作温度:+ 90 C 最小工作温度:0 C 封装 / 箱体:TQFP-100
LC4512B-5FN256C1 制造商:LATTICE 制造商全称:Lattice Semiconductor 功能描述:3.3V/2.5V/1.8V In-System Programmable SuperFAST High Density PLDs