CS4351
8. PACKAGE DIMENSIONS
20L TSSOP (4.4 mm BODY) PACKAGE DRAWING
N
D
E11
A2
A
E
∝
A1
b2
e
L
END VIEW
SEATING
PLANE
SIDE VIEW
1
2 3
TOP VIEW
INCHES
MILLIMETERS
NOTE
DIM
A
A1
A2
b
D
E
E1
e
L
MIN
NOM
--
MAX
0.043
0.006
0.037
0.012
0.259
0.256
0.177
0.026
0.028
8°
MIN
--
NOM
--
--
0.90
0.245
6.50
6.40
4.40
--
MAX
1.10
0.15
0.95
0.30
6.60
6.50
4.50
0.65
0.70
8°
--
0.002
0.03346
0.00748
0.252
0.248
0.169
--
0.004
0.0354
0.0096
0.256
0.2519
0.1732
--
0.05
0.85
0.19
6.40
6.30
4.30
--
2,3
1
1
0.020
0°
0.024
4°
0.50
0°
0.60
4°
∝
JEDEC #: MO-153
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.
Parameters
Package Thermal Resistance
Symbol
Min
Typ
Max
Units
20L TSSOP
θ
-
72
-
°C/Watt
JA
36
DS566PP2
CIRRUS [ CIRRUS LOGIC ]
