ISL28278, ISL28478
Quarter Size Outline Plastic Packages Family (QSOP)
A
MDP0040
QUARTER SIZE OUTLINE PLASTIC PACKAGES FAMILY
D
(N/2)+1
N
INCHES
SYMBOL QSOP16 QSOP24 QSOP28 TOLERANCE NOTES
A
A1
A2
b
0.068
0.006
0.056
0.010
0.008
0.193
0.236
0.154
0.025
0.025
0.041
16
0.068
0.006
0.056
0.010
0.008
0.341
0.236
0.154
0.025
0.025
0.041
24
0.068
0.006
0.056
0.010
0.008
0.390
0.236
0.154
0.025
0.025
0.041
28
Max.
±0.002
±0.004
±0.002
±0.001
±0.004
±0.008
±0.004
Basic
-
PIN #1
I.D. MARK
E
E1
-
-
-
1
(N/2)
c
-
B
D
1, 3
0.010 C A B
E
-
e
E1
e
2, 3
H
-
C
SEATING
L
±0.009
Basic
-
PLANE
L1
N
-
0.007 C A B
b
0.004 C
Reference
-
Rev. F 2/07
L1
NOTES:
1. Plastic or metal protrusions of 0.006” maximum per side are not
included.
A
2. Plastic interlead protrusions of 0.010” maximum per side are not
included.
c
SEE DETAIL "X"
3. Dimensions “D” and “E1” are measured at Datum Plane “H”.
4. Dimensioning and tolerancing per ASME Y14.5M-1994.
0.010
A2
GAUGE
PLANE
L
A1
4°±4°
DETAIL X
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FN6145.2
July 11, 2007
13
INTERSIL [ Intersil ]
