Plastic Packages for Integrated Circuits
Quarter Size Outline Plastic Packages Family (QSOP)
MDP0040 A QUARTER SIZE OUTLINE PLASTIC PACKAGES FAMILY D
(N/2)+1 N INCHES
SYMBOL QSOP16 QSOP24 QSOP28 TOLERANCE NOTES E PIN #1
I.D. MARK E1 1 (N/2) A 0.068 0.068 0.068 Max. -A1 0.006 0.006 0.006 В±0.002 -A2 0.056 0.056 0.056 В±0.004 -b 0.010 0.010 0.010 В±0.002 -c 0.008 0.008 0.008 В±0.001 -D 0.193 0.341 0.390 В±0.004 1, 3 E 0.236 0.236 0.236 В±0.008 -E1 0.154 0.154 0.154 В±0.004 2, 3 e 0.025 0.025 0.025 Basic -L 0.025 0.025 0.025 В±0.009 -L1 0.041 0.041 0.041 Basic -N 16 24 28 Reference -B
0.010 C A B e H C
SEATING
PLANE
0.007 0.004 C b C A B Rev. F 2/07
NOTES: L1
A 1. Plastic or metal protrusions of 0.006” maximum per side are not
included.
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 1 …
