CS5471
4. PACKAGE DIMENSIONS
20L SSOP PACKAGE DRAWING
N
D
1
E1
A2
A
E
∝
A1
2
e
b
L
END VIEW
SEATING
PLANE
SIDE VIEW
1
2
3
TOP VIEW
INCHES
NOM
--
0.006
0.068
--
0.2834
0.307
0.209
0.026
0.03
MILLIMETERS
NOTE
DIM
A
A1
A2
b
D
E
E1
e
L
MIN
--
MAX
0.084
0.010
0.074
0.015
0.295
0.323
0.220
0.030
0.041
8°
MIN
--
NOM
--
0.13
1.73
--
7.20
7.80
5.30
0.65
0.75
4°
MAX
2.13
0.25
1.88
0.38
7.50
8.20
5.60
0.75
1.03
8°
0.002
0.064
0.009
0.272
0.291
0.197
0.022
0.025
0°
0.05
1.62
0.22
6.90
7.40
5.00
0.55
0.63
0°
2,3
1
1
4°
∝
JEDEC #: MO-150
Controlling Dimension is Millimeters.
Notes: 1. “D” and “E1” are reference datums and do not included mold flash or protrusions, but do include mold
mismatch and are measured at the parting line, mold flash or protrusions shall not exceed 0.20 mm per
side.
2. Dimension “b” does not include dambar protrusion/intrusion. Allowable dambar protrusion shall be
0.13 mm total in excess of “b” dimension at maximum material condition. Dambar intrusion shall not
reduce dimension “b” by more than 0.07 mm at least material condition.
3. These dimensions apply to the flat section of the lead between 0.10 and 0.25 mm from lead tips.
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CIRRUS [ CIRRUS LOGIC ]
