STM32L433VCT3

STM32L433VCT3 is a low‑power 32‑bit MCU from STMicroelectronics, part of the STM32L4 family. It uses an ARM Cortex‑M4 core with an FPU and can run up to about 80 MHz, optimized for energy efficiency in battery‑powered applications.
Key points
- Memory/packaging: memory options and exact RAM/flash depend on the package variant; typical devices offer hundreds of KB of flash (up to around 256 KB) and tens of KB of RAM. The VCT3 suffix denotes a specific package variant (check the datasheet for exact pinout and memory).
- Peripherals: broad mix including multiple serial interfaces (USART/UART, SPI, I2C), 12‑bit ADCs, possibly a DAC, timers/RTC, USB FS (where supported by the device), and other on‑chip features such as LCD control and security blocks.
- Power and wake: ultra‑low‑power modes (sleep/STOP/STANDBY) with dynamic voltage scaling to maximize battery life; 1.65–3.6 V operation.
- Development: supported by STCubeMX, HAL/LL drivers, and example projects; suitable for wearables, sensors, portable instrumentation, and medical devices.
For exact specs (memory, peripherals, and pinout), consult the STM32L433VCT3 datasheet and reference manuals.

STM32L433VCT3 features (core ideas; exact numbers depend on variant/package):
- 32‑bit ARM Cortex‑M4F core with hardware FPU; up to 80 MHz
- Ultra‑low‑power MCU with multiple power modes and fast wakeup; 1.65–3.6 V operating range
- Memory: Flash and RAM sizes vary by part; designed for hundreds of KB of Flash and tens to a few hundred KB of RAM
- Peripherals: USB 2.0 full‑speed device (OTG/DFU in some packages); multiple SPI, I2C, USART/UART, and I2S
- Analog: 12‑bit ADC with multiple channels; 12‑bit DAC; analog features like op‑amps/comparators on certain packages
- Timers: several general‑purpose and advanced‑control timers (PWM, input capture, etc.)
- DMA controller, CRC engine; RNG; hardware crypto accelerators (AES/SHA) on select variants
- Flexible clocking, watchdogs, and RTC; rich I/O and interrupt options
- Development: supported by STM32CubeMX/HAL/LL libraries and ecosystem
Notes: exact Flash/RAM, peripherals, and crypto features depend on the specific device variant and package. Refer to the datasheet for precise specifications.

STM32L433VCT3 is in a 100‑pin LQFP package (LQFP-100), typically 14×14 mm with 0.5 mm pitch.

- Pin count: 100-pin LQFP (LQFP-100) package (STM32L433VCT3).
- Function: 32-bit ARM Cortex-M4 microcontroller (STM32L4 series) intended for low-power embedded applications with onboard peripherals.

- Manufacturer: STMicroelectronics (ST).
- What kind of company: A global semiconductor and electronics company, a Franco-Italian multinational corporation headquartered in Geneva, Switzerland, and one of the world’s largest semiconductor producers.

Typical application areas for STM32L433VCT3 include:
- Wearables and portable medical/fitness devices needing long battery life
- Battery-powered sensor nodes and IoT edge devices (environmental/industrial monitoring)
- Portable instrumentation and handheld tools with LCD displays
- Home/building automation and smart devices (thermostats, meters, security sensors)
- USB-enabled peripherals, data loggers and compact control units
(Low power, integrated LCD support, and mixed analog/digital peripherals enable these use cases.)