Datasheet
Pin descriptions STM32L052x6 STM32L052x8
46/143 DocID025936 Rev 8
- - - - 54 B5 PD2 I/O FT - LPUART1_RTS_DE -
26 26 B3 39 55 A5 PB3 I/O FT -
SPI1_SCK,
TIM2_CH2,
TSC_G5I_O1,
EVENTOUT
COMP2_INN
27 27 A3 40 56 A4 PB4 I/O FT -
SPI1_MISO,
EVENTOUT,
TSC_G5_IO2,
TIM22_CH1
COMP2_INP
28 28 C4 41 57 C4 PB5 I/O FT -
SPI1_MOSI,
LPTIM1_IN1,
I2C1_SMBA,
TIM22_CH2
COMP2_INP
29 29 B4 42 58 D3 PB6 I/O FTf -
USART1_TX,
I2C1_SCL,
LPTIM1_ETR,
TSC_G5_IO3
COMP2_INP
30 30 A4 43 59 C3 PB7 I/O FTf -
USART1_RX,
I2C1_SDA,
LPTIM1_IN2,
TSC_G5_IO4
COMP2_INP,
PVD_IN
31 31 C5 44 60 B4 BOOT0 B - - - -
- 32 B5 45 61 B3 PB8 I/O FTf -
TSC_SYNC,
I2C1_SCL
-
- - - 46 62 A3 PB9 I/O FTf -
EVENTOUT,
I2C1_SDA,
SPI2_NSS/I2S2_WS
-
32 - D6 47 63 D4 VSS S - - - -
1 1 A5 48 64 E4 VDD S - - - -
1. PB9/12/13/14/15, PH0/1 and PC13 GPIOs should be configured as output and driven Low, even if they are not available on
this package.
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. STM32L052x6/8 pin definitions (continued)
Pin Number
Pin name
(function after
reset)
Pin type
I/O structure
Notes
Alternate functions
Additional
functions
LQFP32
UFQFN32
WLCSP36
(1)
LQFP48
LQFP64
TFBGA64
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