CD00237391 Datasheet, PDF (149/177 Pages) STMicroelectronics – ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/128+4KB RAM

STM32F20xxx
Package characteristics
Figure 79. LQFP144, 20 x 20 mm, 144-pin low-profile quad
flat package outline
Seating plane
C
A A2 A1
b
ccc C
D
D1
D3
108
109
c
73
72
0.25 mm
gage plane
k
A1
L
L1
E1 E
E3
144
Pin 1
1
identification
37
36
e
ME_1A
1. Drawing is not to scale.
Table 88.
Symbol
LQFP144 20 x 20 mm, 144-pin low-profile quad flat package mechanical data
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
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.
Doc ID 15818 Rev 9
149/177