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STM32L433CCT6

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STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.

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STM32L433CCT6

STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-48(7x7)

STM32L433CCT6 from STMicroelectronics, in a LQFP-48(7x7). 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 VBAT power_in Backup supply input voltage 1.55 to 3.6 V for RTC and backup registers.
2 PC13 bidirectional General-purpose I/O (Port C bit 13), 5V-tolerant, supplied via 3 mA current-limited power switch.
3 PC14-OSC32_IN bidirectional 32 kHz crystal oscillator input or general-purpose I/O (Port C bit 14), 5V-tolerant with 3 mA power limit.
4 PC15-OSC32_OUT bidirectional 32 kHz crystal oscillator output or general-purpose I/O (Port C bit 15), 5V-tolerant with 3 mA power limit.
5 PH0-OSC_IN bidirectional Main crystal oscillator input (4 to 48 MHz) or general-purpose I/O (Port H bit 0), 5V-tolerant.
6 PH1-OSC_OUT bidirectional Main crystal oscillator output or general-purpose I/O (Port H bit 1), 5V-tolerant.
7 NRST bidirectional Reset input pin with internal weak pull-up resistor, typical 40 kΩ at VSS.
8 VSSA power_in Analog ground reference (0 V, VREF- endpoint).
9 VDDA power_in Analog supply voltage 1.62 to 3.6 V and positive reference for ADC (VREF+).
10 PA0 bidirectional General-purpose I/O (Port A bit 0), 5V-tolerant, ADC1 input channel 5.
11 PA1 bidirectional General-purpose I/O (Port A bit 1), 5V-tolerant FM+ capable, ADC1 input channel 6.
12 PA2 bidirectional General-purpose I/O (Port A bit 2), 5V-tolerant FM+ capable, ADC1 input 7, LPTIM1 output capable.
13 PA3 bidirectional General-purpose I/O (Port A bit 3), 3.6V-tolerant, ADC1 input 8, QUADSPI clock capable.
14 PA4 bidirectional General-purpose I/O (Port A bit 4), 3.6V-tolerant, ADC1 input 9 and DAC1 output 1.
15 PA5 bidirectional General-purpose I/O (Port A bit 5), 3.6V-tolerant, ADC1 input 10 and DAC1 output 2.
16 PA6 bidirectional General-purpose I/O (Port A bit 6), 5V-tolerant FM+ capable, ADC1 input 11, TIM1 brake input.
17 PA7 bidirectional General-purpose I/O (Port A bit 7), 5V-tolerant FM+ capable, ADC1 input 12, TIM1 CH1N.
18 PB0 bidirectional General-purpose I/O (Port B bit 0), 5V-tolerant FM+ capable, ADC1 input 15.
19 PB1 bidirectional General-purpose I/O (Port B bit 1), 5V-tolerant FM+ capable, ADC1 input 16.
20 PB2 bidirectional General-purpose I/O (Port B bit 2), 5V-tolerant, RTC output and LPTIM1 output capable.
21 PB10 bidirectional General-purpose I/O (Port B bit 10), 5V-tolerant FM+ capable, TIM2 channel 3 and I2C2 clock.
22 PB11 bidirectional General-purpose I/O (Port B bit 11), 5V-tolerant FM+ capable, TIM2 channel 4 and I2C2 data.
23 VSS power_in Ground reference (0 V).
24 VDD power_in Main supply voltage input 1.71 to 3.6 V.
25 PB12 bidirectional General-purpose I/O (Port B bit 12), 5V-tolerant with LCD capability, TIM1 brake input.
26 PB13 bidirectional General-purpose I/O (Port B bit 13), 5V-tolerant FM+ capable with LCD capability, TIM1 CH1N.
27 PB14 bidirectional General-purpose I/O (Port B bit 14), 5V-tolerant FM+ capable with LCD capability, TIM1 CH2N.
28 PB15 bidirectional General-purpose I/O (Port B bit 15), 5V-tolerant with LCD capability, RTC reference input.
29 PA8 bidirectional General-purpose I/O (Port A bit 8), 5V-tolerant with LCD capability, MCO output and TIM1 CH1.
30 PA9 bidirectional General-purpose I/O (Port A bit 9), 5V-tolerant FM+ capable with LCD capability, TIM1 CH2, USART1 TX.
31 PA10 bidirectional General-purpose I/O (Port A bit 10), 5V-tolerant FM+ capable with LCD capability, TIM1 CH3, USART1 RX.
32 PA11 bidirectional General-purpose I/O (Port A bit 11), 5V-tolerant FM+ capable, USB DM and CAN RX capable, TIM1 CH4.
33 PA12 bidirectional General-purpose I/O (Port A bit 12), 5V-tolerant, USB DP and CAN TX capable, TIM1 ETR.
34 PA13 bidirectional JTAG TMS / Serial-wire debug I/O (SWDIO), 5V-tolerant with internal pull-up enabled after reset.
35 VSS power_in Ground reference (0 V).
36 VDDUSB power_in USB supply voltage input 3.0 to 3.6 V for USB peripheral.
37 PA14 bidirectional JTAG TCK / Serial-wire debug clock (SWCLK), 5V-tolerant with internal pull-down enabled after reset.
38 PA15 bidirectional JTAG TDI or general-purpose I/O (Port A bit 15), 5V-tolerant with internal pull-up, TIM2 ETR capable.
39 PB3 bidirectional JTAG TDO / Trace SWO or general-purpose I/O (Port B bit 3), 5V-tolerant FM+ capable, TIM2 CH2.
40 PB4 bidirectional JTAG NTRST or general-purpose I/O (Port B bit 4), 5V-tolerant FM+ capable, I2C3 data and SPI1 MISO.
41 PB5 bidirectional General-purpose I/O (Port B bit 5), 5V-tolerant with LCD capability, LPTIM1 input 1 and SPI1 MOSI.
42 PB6 bidirectional General-purpose I/O (Port B bit 6), 5V-tolerant FM+ capable, LPTIM1 ETR, I2C1 clock, and USART1 TX.
43 PB7 bidirectional General-purpose I/O (Port B bit 7), 5V-tolerant FM+ capable with LCD capability, LPTIM1 input 2, USART1 RX.
44 PH3-BOOT0 bidirectional Boot mode select pin (low selects flash boot, high selects SRAM boot) or general-purpose I/O (Port H bit 3).
45 PB8 bidirectional General-purpose I/O (Port B bit 8), 5V-tolerant FM+ capable with LCD capability, I2C1 clock, CAN RX.
46 PB9 bidirectional General-purpose I/O (Port B bit 9), 5V-tolerant FM+ capable with LCD capability, I2C1 data, CAN TX.
47 VSS power_in Ground reference (0 V).
48 VDD power_in Main supply voltage input 1.71 to 3.6 V.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package LQFP-48(7x7)
Category Embedded Processors & Controllers
Pins 48

CAD (KiCad official)

  • Symbol: STM32L433CCT6
  • Footprint: Package_QFP:LQFP-48_7x7mm_P0.5mm
  • 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)
  • 3D model files: stm32l433cct6-etched.step / stm32l433cct6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32l433cct6.step / stm32l433cct6.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (224 pp, sha256 618656da2492f8dd, retrieved 2026-09-29, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF