Datasheet
Pinouts and pin descriptions STM32F091xB STM32F091xC
38/128 DocID026284 Rev 4
J10 59 - - - - PD12 I/O FT
USART3_RTS,
TSC_G8_IO1,
USART8_CK_RTS
-
H12 60 - - - - PD13 I/O FT
TSC_G8_IO2,
USART8_TX
-
H11 61 - - - - PD14 I/O FT
TSC_G8_IO3,
USART8_RX
-
H10 62 - - - - PD15 I/O FT
TSC_G8_IO4,
CRS_SYNC,
USART7_CK_RTS
-
E12 63 F6 37 E1 - PC6 I/O FT
(3)
TIM3_CH1, USART7_TX -
E1164E738D1 - PC7 I/O FT
(3)
TIM3_CH2, USART7_RX -
E1065E839E2 - PC8 I/O FT
(3)
TIM3_CH3, USART8_TX -
D1266D840E3 - PC9 I/O FT
(3)
TIM3_CH4, USART8_RX -
D1167D741D229 PA8 I/O FT
(3)
USART1_CK, TIM1_CH1,
EVENTOUT, MCO,
CRS_SYNC
-
D1068C742C130 PA9 I/O FT
(3)
USART1_TX, TIM1_CH2,
TIM15_BKIN, MCO,
TSC_G4_IO1, I2C1_SCL
-
C1269C643C231 PA10 I/O FT
(3)
USART1_RX, TIM1_CH3,
TIM17_BKIN,
TSC_G4_IO2, I2C1_SDA
-
B1270C844D332 PA11 I/O FT
(3)
CAN_RX, USART1_CTS,
TIM1_CH4, COMP1_OUT,
TSC_G4_IO3,
EVENTOUT, I2C2_SCL
-
A1271B845B133 PA12 I/O FT
(3)
CAN_TX, USART1_RTS,
TIM1_ETR, COMP2_OUT,
TSC_G4_IO4,
EVENTOUT, I2C2_SDA
-
A1172A846C334 PA13 I/O FT
(3)
(4)
IR_OUT, SWDIO -
C11 73 - - - - PF6 I/O FT
(3)
--
F1174D647B235 VSS S - Ground
G11 75 E6 48 A1 36 VDDIO2 S - Digital power supply
Table 13. STM32F091xB/xC pin definitions (continued)
Pin numbers
Pin name
(function upon
reset)
Pin type
I/O structure
Notes
Pin functions
UFBGA100
LQFP100
UFBGA64
LQFP64
WLCSP64
LQFP48/UFQFPN48
Alternate functions
Additional
functions
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