Datasheet

STM32F101xF, STM32F101xG Package characteristics
Doc ID 17143 Rev 2 101/108
Figure 54. LQFP144, 20 x 20 mm, 144-pin thin quad flat
package outline
(1)
Figure 55. Recommended
footprint
(1)(2)
1. Drawing is not to scale.
2. Dimensions are in millimeters.
D1
D3
D
E1
E3
E
e
Pin 1
identification
73
72
37
36
109
144
108
1
AA2A1
b
c
A1
L
L1
k
Seating plane
C
ccc C
0.25 mm
gage plane
ME_1A
0.5
0.35
19.9
17.85
22.6
1.35
22.6
19.9
ai149
1
36
37
72
73108
109
144
Table 61. LQFP144, 20 x 20 mm, 144-pin thin quad flat package mechanical data
Symbol
millimeters inches
(1)
Min Typ Max Min Typ Max
A 1.60 0.0630
A1 0.050 0.15 0.0020 0.0059
A2 1.350 1.400 1.45 0.0531 0.0551 0.0571
b 0.170 0.220 0.27 0.0067 0.0087 0.0106
c 0.090 0.20 0.0035 0.0079
D 21.800 22.000 22.20 0.8583 0.8661 0.874
D1 19.800 20.000 20.20 0.7795 0.7874 0.7953
D3 17.500 0.689
E 21.800 22.000 22.20 0.8583 0.8661 0.874
E1 19.800 20.000 20.20 0.7795 0.7874 0.7953
E3 17.500 0.689
e 0.500 0.0197
L 0.450 0.600 0.75 0.0177 0.0236 0.0295
L1 1.000 0.0394
k 0°3.5°7° 0°3.5°7°
ccc 0.080 0.0031
1. Values in inches are converted from mm and rounded to 4 decimal digits.