参数资料
型号: STDH90
英文描述: Leaded Cartridge Fuse; Current Rating:62.5mA; Voltage Rating:250V; Fuse Terminals:Axial Lead; Fuse Type:Time Delay; Voltage Rating:250V; Body Material:Ceramic; Diameter:6.985mm; Fuse Size/Group:1/4 x 1-1/4 " RoHS Compliant: Yes
中文描述: STDH90 0.35微米STDH90图书馆|数据资料
文件页数: 17/122页
文件大小: 277K
代理商: STDH90
INTRODUCTION
1.8 Maximum Fanouts
SEC ASIC
1-11
STDH90/MDL90
1.8 Maximum Fanouts
1.8.1 Internal Macrocells
Refer to STD90/MDL90.
1.8.2 Clock Drivers
STD90 max fanout for clock drivers
<condition>
clock trunk width = 8 um
clock trunk length = 5,000 um
capacitance per fanout = 0.007838 pF
(= input capacitance for CK pin of fd1)
standard load(SL) = 0.011 pF
(= input capacitance for iv)
net length = 200 um per fanout
max output transition time = 3.0 ns
frequency
120 MHz
Table 1-1. Maximum Fanout of Clock Drivers
Cell Type
# of
Fanout
CK2X
522
CK3X
703
CK4X
788
For a design with an operating frequency higher than 120 MHz, SEC strongly recommends using
clock tree synthesis.
1.8.3 I/O Cells
The maximum fanouts for I/O cells are as follows.
Table1-2. Maximum Fanouts of I/O cells(When input tr/tf = 1.6ns)
Cell Class
Output
Pin
Fanouts
PHIC
Y
PHICD50
Y
PHICU50
Y
PHIL
Y
PHILD50
Y
PHILU50
Y
PHIS
Y
PHISD50
Y
PHISU50
Y
PHIT
Y
PHITD50
Y
PHITU50
Y
PHITU5
Y
PHITU50C
Y
# of SL
379
511
572
Maximum
Cell Class
Output
Pin
Maximum
Fanouts
263
264
264
262
264
264
263
262
263
264
264
263
263
263
PHILI
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
263
263
263
263
263
263
264
264
263
263
264
933
1138
1860
PHILID50
PHILIU50
PHISI
PHISID50
PHISIU50
PHITATA
PHITU50ATA
PHITI
PHITID50
PHITIU50
PHSOSCLF
PHSOSCMF
PHSOSCHF
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