Datasheet

Pin description STM8L050J3
24/94 DS12167 Rev 4
4 Pin description
This section describes the device’s pin functions (see Table 4) and package’s pinout (see
Figure 3).
Figure 3. STM8L050J3 SO8N package pinout
1. [ ] Alternative function option. If the same alternate function is shown twice, it indicates an exclusive choice
and not a duplication of the function.
Table 3. Legend/abbreviation for Table 4
Type I= input, O = output, S = power supply
Level
Output HS = high sink/source (20 mA)
Input FT - five volt tolerant
Port and control
configuration
Input float = floating, wpu = weak pull-up
Output T = true open drain, OD = open drain, PP = push pull
Reset state
Bold X (pin state after reset release).
Unless otherwise specified, the pin state is the same during the reset phase
(i.e. “under reset”) and after internal reset release (i.e. at reset state).
MSv46319V1
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2
3
4
8
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5
PC1/I2C_SCL/
PC4/USART_CK/I2C_SMB/CCO/ADC1_IN4/COMP1_INP/
COMP2_INM/
PC5/OSC32_IN/[SPI1_NSS]/USART_TX/TIM2_CH1
PB7/SPI_MISO/ADC1_IN11/COMP1_INP/
PC0/I2C_SDA
PB6/SPI_MOSI/ADC1IN12/COMP1_INP
PB3/TIM2_ETR/ADC1_IN15/RTC_ALARM/COMP1_INP/
PB5/SPI_SCK/ADC1_IN13/COMP1_NP/
PD0/TIM3_CH2/[ADC1_TRIG]/ADC1_IN22/COMP1_INP/
COMP2_INP/
PA0/[USART_CK]/SWIM/BEEP/IR_TIM/
PA2/OSC_IN/[USART_TX]/[SPI_MISO]/
PC6/OSC32_OUT/SPI_SCK/USART_RX/TIM2_CH2
PA3/OSC_OUT/[USART_RX]/[SPI_MOSI]
VSS/VSSA/VREF-
VDD/VDDA/VREF+
STM8L
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