Pinouts and pin descriptions
Table 5.
STM32F103xC, STM32F103xD, STM32F103xE
Alternate functions(4)
High-density STM32F103xx pin definitions (continued)
Pins
Main
Pin name
function(3)
(after reset)
Default
Remap
JTMS-
SWDIO
A12 A10 D4 46 72 105
C11 F8 73 106
PA13
I/O FT
PA13
-
-
Not connected
G9 E6 B1 47 74 107
F9 F6 A1 48 75 108
V
S
S
V
SS_2
SS_2
DD_2
V
V
DD_2
JTCK-
SWCLK
A11 A9 B2 49 76 109
A10 A8 C3 50 77 110
PA14
PA15
I/O FT
I/O FT
PA14
SPI3_NSS/
I2S3_WS
TIM2_CH1_ETR
PA15 / SPI1_NSS
JTDI
B11 B9 A2 51 78 111
B10 B8 B3 52 79 112
C10 C8 C4 53 80 113
PC10
PC11
PC12
PD0
I/O FT
I/O FT
I/O FT
PC10
PC11
PC12
UART4_TX/SDIO_D2
UART4_RX/SDIO_D3
UART5_TX/SDIO_CK
USART3_TX
USART3_RX
USART3_CK
CAN_RX
(9)
(10)
E10 D8 D8
D10 E8 D7
5
6
81 114
82 115
I/O FT OSC_IN
FSMC_D2
(9)
(10)
PD1
I/O FT OSC_OUT
FSMC_D3
CAN_TX
TIM3_ETR/UART5_RX
SDIO_CMD
E9 B7 A3 54 83 116
PD2
I/O FT
PD2
D9 C7
C9 D7
B9 B6
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
84 117
85 118
86 119
PD3
PD4
PD5
I/O FT
I/O FT
I/O FT
S
PD3
PD4
PD5
FSMC_CLK
FSMC_NOE
FSMC_NWE
USART2_CTS
USART2_RTS
USART2_TX
E7
F7
-
-
-
-
120
121
V
V
SS_10
DD_10
SS_10
DD_10
V
S
V
A8 C6
A9 D6
87 122
88 123
PD6
PD7
PG9
I/O FT
I/O FT
I/O FT
PD6
PD7
PG9
FSMC_NWAIT
USART2_RX
USART2_CK
FSMC_NE1/FSMC_NCE2
FSMC_NE2/FSMC_NCE3
E8
D8
-
-
-
-
124
125
FSMC_NCE4_1/
FSMC_NE3
-
-
PG10
I/O FT
PG10
C8
B8
D7
C7
E6
F6
B7
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
126
127
128
129
130
131
132
PG11
PG12
PG13
PG14
VSS_11
VDD_11
PG15
I/O FT
I/O FT
I/O FT
I/O FT
S
PG11
PG12
PG13
PG14
VSS_11
VDD_11
PG15
FSMC_NCE4_2
FSMC_NE4
FSMC_A24
FSMC_A25
S
I/O FT
34/123
Doc ID 14611 Rev 7
STMICROELECTRONICS [ ST ]
