Overview
The STM32L433VCT6TR is an ultra-low-power microcontroller from STMicroelectronics, based on the high-performance Arm® Cortex®-M4 32-bit RISC core. This MCU operates at a frequency of up to 80 MHz and features a Floating Point Unit (FPU) that supports all Arm® single-precision data-processing instructions and data types. It also includes a full set of DSP instructions and a memory protection unit (MPU) to enhance application security.
The device is part of the STM32L433xx family, which is designed for low-power applications. It offers a comprehensive set of power-saving modes, including VBAT mode for RTC and backup registers, Shutdown mode, Standby mode, and Stop 2 mode, among others.
The STM32L433VCT6TR is available in an LQFP100 package and supports a wide temperature range from -40°C to +85°C, +105°C, or +125°C, depending on the configuration.
Key Specifications
| Parameter | Value |
|---|---|
| Core | Arm® Cortex®-M4 32-bit RISC core |
| Frequency | Up to 80 MHz |
| Flash Memory | Up to 256 KB |
| SRAM | 64 KB (including 16 KB with hardware parity check) |
| Power Supply | 1.71 V to 3.6 V (internal LDO), 1.05 V to 1.32 V (external SMPS) |
| Operating Temperature | -40°C to +85°C, +105°C, or +125°C |
| Package | LQFP100 (14 x 14 mm) |
| D/A Converters | 2 x 12-bit |
| Timers | 5 x 16-bit, 1 x 32-bit |
| USART | 3 |
| SPI | 3 (and 1 x Quad SPI) |
| CAN | 1 (CAN 2.0B Active) |
| Integrated Op-Amps | 1 |
| Comparators | 2 |
| I/Os (High Current) | 83 |
Key Features
- Ultra-low-power consumption with FlexPowerControl, including modes like VBAT, Shutdown, Standby, and Stop 2 modes.
- High-performance Arm® Cortex®-M4 32-bit RISC core with FPU, supporting DSP instructions and MPU for enhanced security.
- High-speed memories: up to 256 KB Flash, 64 KB SRAM, and Quad SPI flash memory interface.
- Rich analog peripherals: 12-bit ADC, 12-bit DAC, operational amplifier with PGA, and ultra-low-power comparators.
- Extensive communication interfaces: USB 2.0 full-speed, I2C FM+, USART, SPI, CAN 2.0B, and SDMMC interface.
- Advanced timers: 16-bit and 32-bit timers, including low-power timers and watchdogs.
- Support for capacitive sensing: up to 21 channels for touchkey, linear, and rotary touch sensors.
- RTC with hardware calendar, alarms, and calibration.
- Batch acquisition mode (BAM) and brown out reset (BOR).
Applications
- Low-power IoT devices and smart home applications.
- Industrial automation and control systems.
- Medical devices requiring low power consumption.
- Automotive systems, including advanced driver-assistance systems (ADAS).
- Consumer electronics such as wearables and portable devices.
- Energy harvesting and battery-powered devices.
Q & A
- What is the core architecture of the STM32L433VCT6TR?
The STM32L433VCT6TR is based on the Arm® Cortex®-M4 32-bit RISC core with a Floating Point Unit (FPU).
- What is the maximum operating frequency of the STM32L433VCT6TR?
The maximum operating frequency is up to 80 MHz).
- What are the power supply ranges for the STM32L433VCT6TR?
The device operates from 1.71 V to 3.6 V using the internal LDO regulator and from 1.05 V to 1.32 V using an external SMPS supply).
- What are the key power-saving modes of the STM32L433VCT6TR?
The device features VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode, among others).
- What types of timers are available on the STM32L433VCT6TR?
The device includes 5 x 16-bit timers, 1 x 32-bit timer, and low-power timers, as well as watchdogs).
- Does the STM32L433VCT6TR support capacitive sensing?
Yes, it supports up to 21 capacitive sensing channels for touchkey, linear, and rotary touch sensors).
- What communication interfaces are available on the STM32L433VCT6TR?
The device includes USB 2.0 full-speed, I2C FM+, USART, SPI, CAN 2.0B, and SDMMC interface).
- What is the temperature range for the STM32L433VCT6TR?
The operating temperature range is from -40°C to +85°C, +105°C, or +125°C).
- What package options are available for the STM32L433VCT6TR?
The device is available in an LQFP100 package).
- Does the STM32L433VCT6TR have any specific power management features?
Yes, it includes features like brown out reset (BOR), batch acquisition mode (BAM), and various power-saving modes).
