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Revision: 22-Apr-13
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Document Number: 71921
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QFN 4x4-16L Case Outline
Notes
(1)
Use millimeters as the primary measurement.
(2)
Dimensioning and tolerances conform to ASME Y14.5M. - 1994.
(3)
N is the number of terminals. Nd and Ne is the number of terminals in each D and E site respectively.
(4)
Dimensions b applies to plated terminal and is measured between 0.15 mm and 0.30 mm from terminal tip.
(5)
The pin 1 identifier must be existed on the top surface of the package by using identification mark or other feature of package body.
(6)
Package warpage max. 0.05 mm.
VARIATION 1
VARIATION 2
DIM
MILLIMETERS
(1)
INCHES
MILLIMETERS
(1)
INCHES
MIN. NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX.
A 0.75 0.85 0.95 0.029 0.033 0.037 0.75 0.85 0.95 0.029 0.033 0.037
A1 0 - 0.05 0 - 0.002 0 - 0.05 0 - 0.002
A3 0.20 ref. 0.008 ref. 0.20 ref. 0.008 ref.
b 0.25 0.30 0.35 0.010 0.012 0.014 0.25 0.30 0.35 0.010 0.012 0.014
D 4.00 BSC 0.157 BSC 4.00 BSC 0.157 BSC
D2 2.0
2.1 2.2
0.079
0.083 0.087
2.5
2.6 2.7
0.098
0.102 0.106
e 0.65 BSC 0.026 BSC 0.65 BSC 0.026 BSC
E 4.00 BSC 0.157 BSC 4.00 BSC 0.157 BSC
E2 2.0
2.1 2.2
0.079
0.083 0.087
2.5
2.6 2.7
0.098
0.102 0.106
K 0.20 min. 0.008 min. 0.20 min. 0.008 min.
L 0.5 0.6 0.7 0.020 0.024 0.028 0.3 0.4 0.5 0.012 0.016 0.020
N
(3)
16 16 16 16
Nd
(3)
4444
Ne
(3)
4444
ECN: S13-0893-Rev. B, 22-Apr-13
DWG: 5890
