參數(shù)資料
型號: 82503
廠商: Intel Corp.
英文描述: DUAL SERIAL TRANSCEIVER (DST)
中文描述: 雙串行收發(fā)器(DST)的
文件頁數(shù): 44/45頁
文件大?。?/td> 562K
代理商: 82503
82503
290421–51
Figure 51. Detail L. Terminal Details
NOTES:
The above diagrams use a 20-lead PLCC package to show symbols for package dimensions. The table below indicates
dimensions in mm that are specific to the 44-lead PLCC package.
1. All dimensions and tolerances conform to ANSI Y14.5M-1982.
2. Datum plane
DHD
located at top of mold parting line and coincident with top of lead, where lead exits plastic body.
3. Datums
D–E
and
F–G
to be determined where center leads exit plastic body at datum plane
DHD
.
4. To be determined at seating plane
DCD
.
5. Dimensions D
1
and E
1
do not include mold protrusion.
6. Pin 1 identifier is located within one of the two defined zones.
7. Locations to datum
DAD
and
DBD
to be determined at plane
DHD
.
8. These two dimensions determine maximum angle of the lead for certain socket applications. If unit is intended to be
socketed, it is advisable to review these dimensions with the socket supplier.
9. Controlling dimension, inch.
10. All dimensions and tolerances include lead trim offset and lead plating finish.
11. Tweezing surface planarity is defined as the furthest any lead on a side may be from the datum. The datum is estab-
lished by touching the outermost lead on that side and parallel to
D–E
or
F–G
.
Symbol
Description
Min
Max
A
Overall Height
4.19
4.57
A
1
Distance from Lead Shoulder to Seating Plane
2.29
3.05
D
Overall Package Dimension
17.4
17.7
D
1
Plastic Body Dimension
16.5
16.7
D
2
Foot Print
15.0
16.0
E
Overall Package Dimension
17.4
17.7
E
1
Plastic Body Dimension
16.5
16.7
E
2
Foot Print
15.0
16.0
CP
Seating Plans Coplanarity
0.00
0.10
TCP
Tweezing Coplanarity
0.00
0.10
LT
Lead Thickness
0.23
0.38
44
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