參數(shù)資料
型號(hào)： CE77
廠商： Fujitsu Limited
英文描述： Semicustom CMOS Embedded array
中文描述： 半定制嵌入式陣列的CMOS
文件頁(yè)數(shù)： 20/24頁(yè)
文件大?。?/td> 167K
代理商： CE77
CE77 Series
20
■
THE NUMBER OF GATES USED AND PACKAGES
1.
Counting the number of the gates used
Evaluation of the basic cell count used has revealed some problems including the circuit complexities, difference
of the utilization depending on the circuit design scheme (whether it is designed with the logic synthesis) or
being unable to achieve the minimum layout with the logically synthesized circuit.
To cope with those problems, Fujitsu developed the AREA as a criteria where the circuit size and the layout
feasibility is determined. The AREA is a basic cell conceived from the viewpoint of congestion of the wiring; it
has been calculated from the actual basic cell count and pin count in units of BC.
Estimate method for the frame include the conventional one by the basic cell count and the one by the AREA
for more detailed estimate.
Hard macro basic cell count and AREA count for unit cell, I/O buffer cell or compiled cell are listed in the respective
cell characteristic table.
2.
Packages
The table below lists the package types available and the reference number of gates used.
Consult Fujitsu for the combination of each package and the availability.
CE77 (V-FRAME)
Note : The packages that can be used depend on the circuit configuration. For details, contact Fujitsu.
176
20
8
240
S
Q
F
P
0.5
0.5
0.5
274k
8
0
3
k
965k
20
8
240
256
3
04
H
Q
F
P
0.5
0.5
0.4
0.5
1776k
2276k
1776k
256
P
B
G
A
1.27
61
8
k
712
8
k
0k
1000k
2000k
3
000k
4000k
5000k
6000k
7000k
8
000k~
P
a
ck
a
ge
&
Pin Co
u
nt
Pin
Pitch
(mm)
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