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STM8L151K4T6TR

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STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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STM8L151K4T6TR

STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-32(7x7)

STM8L151K4T6TR from STMicroelectronics, in a LQFP-32(7x7). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 NRST/PA1 bidirectional Reset input with pull-up at power-up; as general-purpose PA1 it can only be configured as open-drain or push-pull output, not as a general-purpose input.
2 PA2/OSC_IN bidirectional Port A2 I/O (high sink/source 20 mA) that doubles as the HSE oscillator input, with USART1_TX and SPI1_MISO as remappable alternate functions.
3 PA3/OSC_OUT bidirectional Port A3 I/O (high sink/source 20 mA) that doubles as the HSE oscillator output, with USART1_RX and SPI1_MOSI as remappable alternate functions.
4 PA4 bidirectional Port A4 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing TIM2 break input, ADC1 input 2 and comparator 1 positive input.
5 PA5 bidirectional Port A5 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing TIM3 break input, ADC1 input 1 and comparator 1 positive input.
6 PA6 bidirectional Port A6 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing ADC1 input 0 and comparator 1 positive input, with [ADC1_TRIG] as a remappable alternate function.
7 VSS1/VSSA/VREF- power_in I/O ground, analog ground voltage and ADC1 negative voltage reference.
8 VDD1/VDDA/VREF+ power_in Digital power supply, analog supply voltage and ADC1 positive voltage reference.
9 PD0 bidirectional Port D0 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing TIM3 channel 2, ADC1 input 22 and comparator 1 and 2 positive inputs.
10 PD1 bidirectional Port D1 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing TIM1 inverted channel 3 (TIM1_CH3N), ADC1 input 21 and comparator 1 and 2 positive inputs.
11 PD2 bidirectional Port D2 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing TIM1 channel 1, ADC1 input 20 and comparator 1 positive input.
12 PD3 bidirectional Port D3 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing TIM1 external trigger, ADC1 input 19 and comparator 1 positive input.
13 PB0 bidirectional Port B0 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing TIM2 channel 1, ADC1 input 18 and comparator 1 positive input; a pull-up is applied during reset and the pin is input floating after reset release.
14 PB1 bidirectional Port B1 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing TIM3 channel 1, ADC1 input 17 and comparator 1 positive input.
15 PB2 bidirectional Port B2 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing TIM2 channel 2, ADC1 input 16 and comparator 1 positive input.
16 PB3 bidirectional Port B3 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing TIM1 inverted channel 2 (TIM1_CH2N), ADC1 input 15 and comparator 1 positive input, with [TIM2_ETR] as a remappable alternate function.
17 PB4 bidirectional Port B4 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing ADC1 input 14, DAC output and comparator 1 positive input, with [SPI1_NSS] as a remappable alternate function; a pull-up is applied during reset and the pin is input floating after reset release.
18 PB5 bidirectional Port B5 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing ADC1 input 13, DAC output and comparator 1 positive input, with [SPI1_SCK] as a remappable alternate function.
19 PB6 bidirectional Port B6 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing ADC1 input 12, DAC output and comparator 1 positive input, with [SPI1_MOSI] as a remappable alternate function.
20 PB7 bidirectional Port B7 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing ADC1 input 11 and comparator 1 positive input, with [SPI1_MISO] as a remappable alternate function.
21 PD4 bidirectional Port D4 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing TIM1 channel 2, ADC1 input 10 and comparator 1 positive input.
22 PD5 bidirectional Port D5 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing TIM1 channel 3, ADC1 input 9 and comparator 1 positive input.
23 PD6 bidirectional Port D6 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing TIM1 break input, ADC1 input 8, RTC calibration output, internal voltage reference output and comparator 1 positive input.
24 PD7 bidirectional Port D7 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing TIM1 inverted channel 1 (TIM1_CH1N), ADC1 input 7, RTC alarm, internal voltage reference output and comparator 1 positive input.
25 PC0 bidirectional Port C0 I/O, 5 V tolerant (FT) with true open-drain output and no protection diode to VDD, providing I2C1 data (SDA).
26 PC1 bidirectional Port C1 I/O, 5 V tolerant (FT) with true open-drain output and no protection diode to VDD, providing I2C1 clock (SCL).
27 PC2 bidirectional Port C2 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing USART1 receive, ADC1 input 6, comparator 1 positive input and internal voltage reference output (VREFINT).
28 PC3 bidirectional Port C3 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing USART1 transmit, ADC1 input 5, comparator 1 positive input and comparator 2 negative input.
29 PC4 bidirectional Port C4 I/O, 3.6 V tolerant (TT) with no protection diode to VDD, providing USART1 synchronous clock (USART1_CK), I2C1_SMB, configurable clock output (CCO), ADC1 input 4, comparator 2 negative input and comparator 1 positive input.
30 PC5/OSC32_IN bidirectional Port C5 I/O that doubles as the LSE oscillator input (OSC32_IN), with [SPI1_NSS] and [USART1_TX] as remappable alternate functions.
31 PC6/OSC32_OUT bidirectional Port C6 I/O that doubles as the LSE oscillator output (OSC32_OUT), with [SPI1_SCK] and [USART1_RX] as remappable alternate functions.
32 PA0 bidirectional Port A0 I/O with high sink LED driver capability (20 mA), input pull-up during reset and after reset release, providing [USART1_CK], SWIM input/output, BEEP output and infrared timer output.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package LQFP-32(7x7)
Category Embedded Processors & Controllers
Pins 32

CAD (KiCad official)

  • Symbol: STM8L151K4T6TR
  • Footprint: Package_QFP:LQFP-32_7x7mm_P0.8mm
  • 3D model: LQFP-32(7x7) (KiCad packages3D, STEP)
  • 3D model files: stm8l151k4t6tr-etched.step / stm8l151k4t6tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm8l151k4t6tr.step / stm8l151k4t6tr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: STMicroelectronics datasheet (141 pp, sha256 76f669f0972e887a, retrieved 2026-10-08, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF