COM20022I_06 Datasheet, PDF (78/82 Pages) SMSC Corporation – 10 Mbps ARCNET (ANSI 878.1) Controller with 2Kx8 On-Board RAM

Chapter 9
10 Mbps ARCNET (ANSI 878.1) Controller with 2Kx8 On-Board RAM
Datasheet
Package Outline
Figure 9.1 - COM20022I 48 Pin TQFP Package Outline
Table 9.1 - COM20022I 48 Pin TQFP Package 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
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)
Notes:
1. Controlling Unit: millimeter
2. Tolerance on the position of the leads is ± 0.04 mm maximum.
3. Package body dimensions D1 and E1 do not include the mold protrusion. Maximum mold protrusion is 0.25 mm.
4. Dimension for foot length L measured at the gauge plane 0.25 mm above the seating plane is 0.78-1.08 mm.
5. Details of pin 1 identifier are optional but must be located within the zone indicated.
Revision 02-27-06
Page 78
DATASHEET
SMSC COM20022I