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参数资料
| 型号： | M4A3-96/48-55VC |
| 厂商： | LATTICE SEMICONDUCTOR CORP |
| 元件分类： | PLD |
| 英文描述： | High Performance E 2 CMOS In-System Programmable Logic |
| 中文描述： | EE PLD, 5.5 ns, PQFP100 |
| 封装： | TQFP-100 |
| 文件页数： | 62/62页 |
| 文件大小： | 1078K |
| 代理商： | M4A3-96/48-55VC |
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ispMACH 4A Family
9
Note that the configuration of the logic allocator has absolutely no impact on the speed of the signal. All
configurations have the same delay. This means that designers do not have to decide between optimizing
resources or speed; both can be optimized.
If not used in the cluster, the extra product term can act in conjunction with the basic cluster to provide
XOR logic for such functions as data comparison, or it can work with the D-,T-type flip-flop to provide
for J-K, and S-R register operation. In addition, if the basic cluster is routed to another macrocell, the extra
product term is still available for logic. In this case, the first XOR input will be a logic 0. This circuit has the
flexibility to route product terms elsewhere without giving up the use of the macrocell.
Product term clusters do not “wrap” around a PAL block. This means that the macrocells at the ends of
the block have fewer product terms available.
0
17466G-007
Figure 3. Logic Allocator Congurations: Synchronous Mode
a. Basic cluster with XOR
b. Extended cluster, active high
c. Extended cluster, active low
d. Basic cluster routed away;
single-product-term, active high
e. Extended cluster routed away
0
17466G-008
Figure 4. Logic Allocator Congurations: Asynchronous Mode
b. Extended cluster, active high
c. Extended cluster, active low
e. Extended cluster routed away
d. Basic cluster routed away;
single-product-term, active high
a. Basic cluster with XOR
相关PDF资料 |
PDF描述 |
|---|---|
| M4A3-96/48-7VC | High Performance E 2 CMOS In-System Programmable Logic |
| M4A3-96/48-7VI | High Performance E 2 CMOS In-System Programmable Logic |
| M4A5-64/32-12VI48 | High Performance E 2 CMOS In-System Programmable Logic |
| M4A5-64/32-55JC | High Performance E 2 CMOS In-System Programmable Logic |
| M4A5-64/32-55VC | High Performance E 2 CMOS In-System Programmable Logic |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M4A445032 | 制造商:Panasonic Industrial Company 功能描述:ESCUTCHEON |
| M4A450017A | 制造商:Panasonic Industrial Company 功能描述:ESCUTCHEON |
| M4A453015 | 制造商:Panasonic Industrial Company 功能描述:ESCUTCHEON SUB: M4A453015A |
| M4A453015A | 制造商:Panasonic Industrial Company 功能描述:ESCUTCHEON |
| M4A454015 | 制造商:Panasonic Industrial Company 功能描述:ESCUTCHEON SUB:M4A454015A |
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