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STM32L152RET6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSTM32L152RET6
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)
STM32L152RET6 from STMicroelectronics, in a LQFP-64(10x10). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model, then checked against ST open pin data); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VLCD | power_in | LCD voltage supply pin for STM32L152xE devices; connect to VDD for STM32L151xE devices without LCD. |
| 2 | PC13-WKUP2 | bidirectional | Port C pin 13, 5V tolerant I/O, wakeup pin 2 and RTC tamper/timestamp functionality. |
| 3 | PC14-OSC32_IN | bidirectional | Port C pin 14, 3.3V I/O, 32 kHz oscillator input when LSE oscillator enabled, usable as GPIO when LSE off. |
| 4 | PC15-OSC32_OUT | bidirectional | Port C pin 15, 3.3V I/O, 32 kHz oscillator output when LSE oscillator enabled, usable as GPIO when LSE off. |
| 5 | PH0-OSC_IN | bidirectional | Port H pin 0, 3.3V I/O, HSE oscillator input when HSE enabled, usable as GPIO when HSE off. |
| 6 | PH1-OSC_OUT | bidirectional | Port H pin 1, 3.3V I/O, HSE oscillator output when HSE enabled, usable as GPIO when HSE off. |
| 7 | NRST | bidirectional | Bidirectional reset pin with embedded weak pull-up resistor and debouncing logic. |
| 8 | PC0 | bidirectional | Port C pin 0, 5V tolerant I/O, supports LCD segment output and ADC input channel 10. |
| 9 | PC1 | bidirectional | Port C pin 1, 5V tolerant I/O, supports LCD segment output and ADC input channel 11. |
| 10 | PC2 | bidirectional | Port C pin 2, 5V tolerant I/O, supports LCD segment output and ADC input channel 12. |
| 11 | PC3 | bidirectional | Port C pin 3, 3.3V I/O, supports LCD segment output and ADC input channel 13. |
| 12 | VSSA | power_in | Analog ground supply return pin. |
| 13 | VDDA | power_in | Analog power supply pin, 1.8V to 3.6V range. |
| 14 | PA0-WKUP1 | bidirectional | Port A pin 0, 5V tolerant I/O, wakeup pin 1, supports timer and USART alternate functions, ADC channel 0. |
| 15 | PA1 | bidirectional | Port A pin 1, 5V tolerant I/O, supports timer and USART functions, LCD segment output, ADC channel 1. |
| 16 | PA2 | bidirectional | Port A pin 2, 5V tolerant I/O, supports timer and USART functions, LCD segment output, ADC channel 2. |
| 17 | PA3 | bidirectional | Port A pin 3, 3.3V I/O, supports timer and USART functions, LCD segment output, OPAMP1 output, ADC channel 3. |
| 18 | VSS_4 | power_in | Ground supply return pin. |
| 19 | VDD_4 | power_in | Power supply pin, 1.65V to 3.6V range. |
| 20 | PA4 | bidirectional | Port A pin 4, 3.3V I/O, supports SPI and I2S alternate functions, DAC output 1, ADC channel 4. |
| 21 | PA5 | bidirectional | Port A pin 5, 3.3V I/O, supports SPI clock and timer functions, DAC output 2, ADC channel 5. |
| 22 | PA6 | bidirectional | Port A pin 6, 5V tolerant I/O, supports timer and SPI functions, LCD segment output, OPAMP2 input, ADC channel 6. |
| 23 | PA7 | bidirectional | Port A pin 7, 5V tolerant I/O, supports timer and SPI functions, LCD segment output, OPAMP2 input, ADC channel 7. |
| 24 | PC4 | bidirectional | Port C pin 4, 5V tolerant I/O, supports LCD segment output, ADC input channel 14. |
| 25 | PC5 | bidirectional | Port C pin 5, 5V tolerant I/O, supports LCD segment output, ADC input channel 15. |
| 26 | PB0 | bidirectional | Port B pin 0, 3.3V I/O, supports timer function, LCD segment output, VREF output, OPAMP2 output, ADC channel 8. |
| 27 | PB1 | bidirectional | Port B pin 1, 5V tolerant I/O, supports timer function, LCD segment output, VREF output, ADC channel 9. |
| 28 | PB2/BOOT1 | bidirectional | Port B pin 2, 5V tolerant I/O, BOOT1 configuration pin for boot mode selection, ADC input 0b. |
| 29 | PB10 | bidirectional | Port B pin 10, 5V tolerant I/O, supports timer and I2C2 functions, USART3 TX, LCD segment output. |
| 30 | PB11 | bidirectional | Port B pin 11, 5V tolerant I/O, supports timer and I2C2 functions, USART3 RX, LCD segment output. |
| 31 | VSS_1 | power_in | Ground supply return pin. |
| 32 | VDD_1 | power_in | Power supply pin, 1.65V to 3.6V range. |
| 33 | PB12 | bidirectional | Port B pin 12, 5V tolerant I/O, supports timer, I2C2 SMBus, SPI2, and USART3 functions, ADC channel 18. |
| 34 | PB13 | bidirectional | Port B pin 13, 5V tolerant I/O, supports timer, SPI2, and USART3 functions, ADC channel 19. |
| 35 | PB14 | bidirectional | Port B pin 14, 5V tolerant I/O, supports timer, SPI2, and USART3 functions, ADC channel 20. |
| 36 | PB15 | bidirectional | Port B pin 15, 5V tolerant I/O, supports timer and SPI2 functions, RTC reference input, ADC channel 21. |
| 37 | PC6 | bidirectional | Port C pin 6, 5V tolerant I/O, supports timer and I2S MCK alternate functions, LCD segment output. |
| 38 | PC7 | bidirectional | Port C pin 7, 5V tolerant I/O, supports timer and I2S MCK alternate functions, LCD segment output. |
| 39 | PC8 | bidirectional | Port C pin 8, 5V tolerant I/O, supports timer function, LCD segment output. |
| 40 | PC9 | bidirectional | Port C pin 9, 5V tolerant I/O, supports timer function, LCD segment output. |
| 41 | PA8 | bidirectional | Port A pin 8, 5V tolerant I/O, supports USART1 clock, MCO output, LCD common output 0. |
| 42 | PA9 | bidirectional | Port A pin 9, 5V tolerant I/O, supports USART1 transmit and LCD common output 1. |
| 43 | PA10 | bidirectional | Port A pin 10, 5V tolerant I/O, supports USART1 receive and LCD common output 2. |
| 44 | PA11 | bidirectional | Port A pin 11, 5V tolerant I/O, supports USART1 CTS and SPI1 functions, USB DM line. |
| 45 | PA12 | bidirectional | Port A pin 12, 5V tolerant I/O, supports USART1 RTS and SPI1 functions, USB DP line. |
| 46 | PA13 | bidirectional | Port A pin 13, 5V tolerant I/O, JTAG/SWD debug pin (JTMS-SWDIO), shared with GPIO functionality. |
| 47 | VSS_2 | power_in | Ground supply return pin. |
| 48 | VDD_2 | power_in | Power supply pin, 1.65V to 3.6V range. |
| 49 | PA14 | bidirectional | Port A pin 14, 5V tolerant I/O, JTAG/SWD debug pin (JTCK-SWCLK), shared with GPIO functionality. |
| 50 | PA15 | bidirectional | Port A pin 15, 5V tolerant I/O, JTAG debug pin (JTDI), supports timer and SPI functions, LCD segment output. |
| 51 | PC10 | bidirectional | Port C pin 10, 5V tolerant I/O, supports SPI3 and I2S3 functions, UART4 TX, LCD common/segment output. |
| 52 | PC11 | bidirectional | Port C pin 11, 5V tolerant I/O, supports SPI3 and UART functions, LCD common/segment output. |
| 53 | PC12 | bidirectional | Port C pin 12, 5V tolerant I/O, supports SPI3, I2S3, and UART functions, LCD common/segment output. |
| 54 | PD2 | bidirectional | Port D pin 2, 5V tolerant I/O, supports timer and UART5 functions, LCD common/segment output. |
| 55 | PB3 | bidirectional | Port B pin 3, 5V tolerant I/O, JTAG debug pin (JTDO), supports timer and SPI functions, LCD segment output. |
| 56 | PB4 | bidirectional | Port B pin 4, 5V tolerant I/O, JTAG reset pin (NJTRST), supports timer and SPI functions, LCD segment output. |
| 57 | PB5 | bidirectional | Port B pin 5, 5V tolerant I/O, supports timer, I2C1 SMBus, SPI, and I2S functions, LCD segment output. |
| 58 | PB6 | bidirectional | Port B pin 6, 5V tolerant I/O, supports timer, I2C1 clock, and USART1 TX functions. |
| 59 | PB7 | bidirectional | Port B pin 7, 5V tolerant I/O, supports timer, I2C1 data, and USART1 RX functions, PVD input. |
| 60 | BOOT0 | input | Dedicated BOOT0 pin, input only, configures device boot mode selection at power-up or reset. |
| 61 | PB8 | bidirectional | Port B pin 8, 5V tolerant I/O, supports timer and I2C1 functions, LCD segment output. |
| 62 | PB9 | bidirectional | Port B pin 9, 5V tolerant I/O, supports timer and I2C1 functions, LCD common output 3. |
| 63 | VSS_3 | power_in | Ground supply return pin. |
| 64 | VDD_3 | power_in | Power supply pin, 1.65V to 3.6V range. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-64(10x10) |
| Category | Embedded Processors & Controllers |
| Pins | 64 |
CAD (KiCad official)
- Symbol:
STM32L152RET6 - Footprint:
Package_QFP:LQFP-64_10x10mm_P0.5mm - 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
- 3D model files:
stm32l152ret6-etched.step/stm32l152ret6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32l152ret6.step/stm32l152ret6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (136 pp, sha256
0d2f673e0c6974fa, retrieved 2026-10-01, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).