COM20020I_06 Datasheet, PDF (61/65 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 26 - 48 PIN TQFP PACKAGE OUTLINE
MIN
NOMINAL
A
~
~
A1
0.05
0.10
A2
1.35
1.40
D
8.80
9.00
D/2
4.40
4.50
D1
6.90
7.00
E
8.80
9.00
E/2
4.40
4.50
E1
6.90
7.00
H
0.09
~
L
0.45
0.60
L1
~
1.00
e
0.50 Basic
θ
0^o
~
W
0.17
~
R1
0.08
~
R2
0.08
~
ccc
~
~
ccc
~
~
Note 1: Controlling Unit: millimeter
MAX
1.6
0.15
1.45
9.20
4.60
7.10
9.10
4.60
7.10
0.20
0.75
~
7^o
0.27
~
0.20
0.0762
0.08
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
Page 61
DATASHEET
Revision 12-06-06