CD00161566 Datasheet, PDF (92/105 Pages) STMicroelectronics – nullMedium-density performance line ARM-based 32-bit MCU

Package characteristics
Figure 54. LQFP48, 7 x 7 mm, 48-pin low-profile quad flat
package outline⁽¹⁾
Seating plane
C
STM32F103x8, STM32F103xB
Figure 55. LQFP48
recommended footprint⁽¹⁾⁽²⁾
A A2
A1
b
ccc _C
D
D1
D3
36
37
c
0.25 mm
Gage plane
k
A1
L
25
L1
24
0.50
1.20
36
25
0.30
37
24
9.70 5.80
7.30
7.30
48
1
0.20
13
12
E3 E1 E
1.20
5.80
9.70
48
Pin 1
1
identification
1. Drawing is not to scale.
2. Dimensions are in millimeters.
13
12
5B_ME
Table 58. LQFP48, 7 x 7 mm, 48-pin low-profile quad flat package mechanical data
Symbol
millimeters
Min
Typ
Max
inches⁽¹⁾
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
8.800
9.000
9.200
0.3465
0.3543
0.3622
D1
6.800
7.000
7.200
0.2677
0.2756
0.2835
D3
-
5.500
-
-
0.2165
-
E
8.800
9.000
9.200
0.3465
0.3543
0.3622
E1
6.800
7.000
7.200
0.2677
0.2756
0.2835
E3
-
5.500
-
-
0.2165
-
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.
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