COM20019I_07 Datasheet, PDF (61/65 Pages) SMSC Corporation – Cost Competitive ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM

Cost Competitive ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
9.2 48 Pin TQFP Package Outline and Parameters
MIN
NOMINAL
MAX
A
~
~
1.6
A1
0.05
0.10
0.15
A2
1.35
1.40
1.45
D
8.80
9.00
9.20
D/2
4.40
4.50
4.60
D1
6.90
7.00
7.10
E
8.80
9.00
9.10
E/2
4.40
4.50
4.60
E1
6.90
7.00
7.10
H
0.09
~
0.20
L
0.45
0.60
0.75
L1
~
1.00
~
e
0.50 Basic
θ
0^o
~
7^o
W
0.17
~
0.27
R1
0.08
~
~
R2
0.08
~
0.20
ccc
~
~
0.0762
ccc
~
~
0.08
Note 1: 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 COM20019I
Page 61
DATASHEET
Rev. 09-25-07