Datasheet
Pin descriptions STM32L072xx
50/149 DocID027100 Rev 4
27 26 40 56 A4 B3 90 A7 PB4 I/O FTf -
SPI1_MISO, TIM3_CH1,
TSC_G5_IO2,
TIM22_CH1,
USART1_CTS,
USART5_RX, I2C3_SDA
COMP2_INP
28 27 41 57 C4 A4 91 C5 PB5 I/O FT -
SPI1_MOSI,
LPTIM1_IN1,
I2C1_SMBA,
TIM3_CH2/TIM22_CH2,
USART1_CK,
USART5_CK/USART5_R
TS_DE
COMP2_INP
29 28 42 58 D3 B4 92 B5 PB6 I/O FTf -
USART1_TX, I2C1_SCL,
LPTIM1_ETR,
TSC_G5_IO3
COMP2_INP
30 29 43 59 C3 C3 93 B4 PB7 I/O FTf -
USART1_RX, I2C1_SDA,
LPTIM1_IN2,
TSC_G5_IO4,
USART4_CTS
COMP2_INP,
VREF_PVD_IN
31 30 44 60 B4 A5 94 A4 BOOT0 I - - -
- - 45 61 B3 B5 95 A3 PB8 I/O FTf - TSC_SYNC, I2C1_SCL -
- - 46 62 A3 A6 96 B3 PB9 I/O FTf -
EVENTOUT, I2C1_SDA,
SPI2_NSS/I2S2_WS
-
- - - - - - 97 C3 PE0 I/O FT - EVENTOUT -
- - - - - - 98 A2 PE1 I/O FT - EVENTOUT -
32 31 47 63 D4 - 99 D3 VSS S - - - -
-324864E4A7100C4 VDD S - - - -
1. UFQFPN32 pinout differs from other STM32 devices except STM32L07xxx and STM32L8xxx.
2. PA4 offers a reduced touch sensing sensitivity. It is thus recommended to use it as sampling capacitor I/O.
3. These pins are powered by VDD_USB. For all characteristics that refer to V
DD
, V
DD_USB
must be used instead.
Table 16. STM32L072xxx pin definition (continued)
Pin number
Pin name
(function
after reset)
Pin type
I/O structure
Note
Alternate functions Additional functions
LQFP32
UFQFPN32
(1)
LQFP48
LQFP64
UFBGA64/TFBGA64
WLCSP49
LQFP100
UFBG100
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