Overview
The STM32L433RCT6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L4 series. It is based on the high-performance Arm® Cortex®-M4 32-bit RISC core, operating at a frequency of up to 80 MHz. This microcontroller features a Floating Point Unit (FPU) single precision, supporting 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 designed for low-power applications, offering a comprehensive set of power-saving modes and advanced peripherals. It is suitable for a wide range of applications requiring high performance and low energy consumption.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, up to 80 MHz |
| Memory | Up to 256 KB single bank flash, 64 KB of SRAM |
| Power Supply | 1.71 V to 3.6 V (internal LDO), 1.05 V to 1.32 V (external SMPS) |
| Temperature Range | -40 °C to +85 °C / +105 °C / +125 °C |
| ADC | 1x 12-bit ADC, 5 Msps |
| DAC | 2x 12-bit DAC output channels |
| Timers | 1x 32-bit, 5x 16-bit general purpose timers, 2x 16-bit low-power timers |
| Communication Interfaces | 3x I2C, 3x SPI, 3x USART, 1x Low-Power UART, 1x SAI, 1x SDMMC, 1x CAN, 1x USB full-speed device |
| Package | LQFP 64 10x10x1.4 mm |
| Power Modes | 200 nA in VBAT mode, 8 nA Shutdown mode, 28 nA Standby mode, 280 nA Standby mode with RTC, 1.0 µA Stop 2 mode |
Key Features
- Ultra-low-power with FlexPowerControl
- High-speed memories: up to 256 KB flash, 64 KB SRAM
- Quad SPI flash memories interface
- Extensive range of enhanced I/Os and peripherals
- Protection mechanisms: readout protection, write protection, proprietary code readout protection, Firewall
- Advanced analog peripherals: 12-bit ADC, 12-bit DAC, operational amplifier, comparators
- Integrated LCD driver 8x40 or 4x44 with internal step-up converter
- Up to 21 capacitive sensing channels
- Multiple communication interfaces: I2C, SPI, USART, USB, CAN, SDMMC
- Low-power RTC with HW calendar, alarms, and calibration
- Comprehensive set of power-saving modes
- Support for independent power supplies for analog and digital components
Applications
- Industrial automation and control systems
- Medical devices requiring low power consumption
- Consumer electronics such as smart home devices and wearables
- Automotive systems, especially those requiring high reliability and low power
- IoT devices and smart sensors
- Energy metering and monitoring systems
Q & A
- What is the core architecture of the STM32L433RCT6?
The STM32L433RCT6 is based on the Arm® 32-bit Cortex®-M4 CPU with a Floating Point Unit (FPU), operating at up to 80 MHz.
- What are the memory specifications of the STM32L433RCT6?
The device features up to 256 KB of single bank flash memory and 64 KB of SRAM.
- What is the power supply range for the STM32L433RCT6?
The device operates from a 1.71 V to 3.6 V power supply using the internal LDO regulator, and from 1.05 V to 1.32 V using an external SMPS supply.
- What are the key analog peripherals available on the STM32L433RCT6?
The device includes a 12-bit ADC, two 12-bit DAC output channels, an operational amplifier, and two ultra-low-power comparators.
- What communication interfaces are available on the STM32L433RCT6?
The device features multiple communication interfaces including I2C, SPI, USART, Low-Power UART, SAI, SDMMC, CAN, and USB full-speed device.
- What are the power-saving modes available on the STM32L433RCT6?
The device offers several power-saving modes such as VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode, among others.
- What is the temperature range for the STM32L433RCT6?
The device operates in the temperature range of -40 °C to +85 °C / +105 °C / +125 °C.
- Does the STM32L433RCT6 support capacitive sensing?
Yes, the device supports up to 21 capacitive sensing channels.
- What is the package type for the STM32L433RCT6?
The device is available in an LQFP 64 10x10x1.4 mm package.
- Does the STM32L433RCT6 have integrated LCD driver capabilities?
Yes, the device includes an integrated LCD driver 8x40 or 4x44 with an internal step-up converter.
- What are some typical applications for the STM32L433RCT6?
The device is suitable for industrial automation, medical devices, consumer electronics, automotive systems, IoT devices, and energy metering systems.
