Information

Package characteristics STM32F405xx, STM32F407xx
164/185 DocID022152 Rev 4
Figure 81. LQFP144, 20 x 20 mm, 144-pin low-profile quad flat package outline
1. Drawing is not to scale.
D1
D3
D
E1E3 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
Table 93. LQFP144, 20 x 20 mm, 144-pin low-profile quad flat package mechanical data
Symbol
millimeters inches
(1)
Min Typ Max Min Typ Max
A 1.600 0.0630
A1 0.050 0.150 0.0020 0.0059
A2 1.350 1.400 1.450 0.0531 0.0551 0.0571
b 0.170 0.220 0.270 0.0067 0.0087 0.0106
c 0.090 0.200 0.0035 0.0079
D 21.800 22.000 22.200 0.8583 0.8661 0.874
D1 19.800 20.000 20.200 0.7795 0.7874 0.7953
D3 17.500 0.689
E 21.800 22.000 22.200 0.8583 0.8661 0.8740
E1 19.800 20.000 20.200 0.7795 0.7874 0.7953
E3 17.500 0.6890
e 0.500 0.0197
L 0.450 0.600 0.750 0.0177 0.0236 0.0295
L1 1.000 0.0394