AN3216 Datasheet, PDF (30/33 Pages) STMicroelectronics – Getting started with STM32L1xxx hardware development

Reference design
AN3216
Table 7. Reference connection for all packages
Pin name
Pin numbers for LQFP packages
Pin numbers for BGA
packages
Pin numbers for
UFQFPN package
144 pins 100 pins 64 pins 48 pins 132 pins 100 pins 64 pins
48 pins
PH0-OSC_IN
23
12
5
5
F1
F1
C1
5
PH1-OSC_OUT
24
13
6
6
G1
G1
D1
6
PC15-
OSC32_OUT
9
9
4
4
E1
E1
B1
4
PC14-
OSC32_IN
8
8
3
3
D1
D1
A1
3
BOOT0
138
94
60
44
A4
A4
B4
44
PB2-BOOT1
48
37
28
20
L6
L6
G6
20
NRST
25
14
7
7
H2
H2
E1
7
PA13
105
72
46
34
A11
A11
A8
34
PA14
109
76
49
37
A10
A10
A7
37
PA15
110
77
50
38
A9
A9
A6
38
PB4
134
90
56
40
A7
A7
A4
40
PB3
133
89
55
39
A8
A8
A5
39
V_{SS_1}
71
49
31
23
F12
F12
D6
23
V_{SS_2}
107
74
47
35
F11
F11
D5
35
V_{SS_3}
143
99
63
47
D3
D3
D4
47
V_{SS_4}
38
27
18
-
-
E3
C2
—
V_{SS_5}
16
10
-
-
F2
F2
-
—
V_{SS_6}
51
-
-
-
E3
-
-
—
V_{SS_7}
61
-
-
-
-
-
-
—
V_{SS_8}
83
-
-
-
-
-
-
—
V_{SS_9}
94
-
-
-
F6
-
-
—
V_{SS_10}
120
-
-
-
F7
-
-
—
V_{SS_11}
130
-
-
-
-
-
-
—
V_{DD_1}
72
50
32
24
G12
G12
E6
24
V_{DD_2}
108
75
48
36
G11
G11
E5
36
V_{DD_3}
144
100
64
48
C4
C4
E4
48
V_{DD_4}
39
28
19
-
-
H3
D2
—
V_{DD_5}
17
11
-
-
G2
G2
-
—
V_{DD_6}
52
-
-
-
H3
-
-
—
V_{DD_7}
62
-
-
-
-
-
-
—
V_{DD_8}
84
-
-
-
-
-
-
—
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