COM20020I_0609 Datasheet, PDF (64/69 Pages) SMSC Corporation – 5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM

5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
Figure 28 - 48 Pin TQFP Package Outline
A
A1
A2
D
D/2
D1
E
E/2
E1
H
L
L1
e
θ
W
R1
R2
ccc
ccc
Note 1:
MIN
NOMINAL
MAX
~
~
1.6
0.05
0.10
0.15
1.35
1.40
1.45
8.80
9.00
9.20
4.40
4.50
4.60
6.90
7.00
7.10
8.80
9.00
9.10
4.40
4.50
4.60
6.90
7.00
7.10
0.09
~
0.20
0.45
0.60
0.75
~
1.00
~
0.50 Basic
0^o
~
7^o
0.17
~
0.27
0.08
~
~
0.08
~
0.20
~
~
0.0762
~
~
0.08
Controlling Unit: millimeter
REMARK
Overall Package Height
Standoff
Body Thickness
X Span
1_{/2 X Span Measure from Centerline}
X body Size
Y Span
1_{/2 Y Span Measure from Centerline}
Y body Size
Lead Frame Thickness
Lead Foot Length from Centerline
Lead Length
Lead Pitch
Lead Foot Angle
Lead Width
Lead Shoulder Radius
Lead Foot Radius
Coplanarity (Assemblers)
Coplanarity (Test House)
SMSC COM20020I 3.3V Rev.E
Page 64
DATASHEET
Revision 09-11-06