Overview
The STM32L433CCU6TR is an ultra-low-power microcontroller from STMicroelectronics, based on the high-performance Arm® Cortex®-M4 32-bit RISC core. This microcontroller 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.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU |
| Frequency | Up to 80 MHz |
| Flash Memory | Up to 256 KB |
| SRAM | 64 KB |
| 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 / +125 °C |
| Package | 48-UFQFPN (7x7 mm) |
| ADC | 12-bit, 5 Msps |
| DAC | 2 channels, 12-bit |
| Timers | 1x 32-bit, 5x 16-bit, 2x low-power 16-bit |
| Communication Interfaces | 3x I2C, 3x SPI, 3x USART, 1x LPUART, 1x CAN, 1x USB FS, 1x SDMMC |
| Capacitive Sensing Channels | Up to 21 channels |
| LCD Driver | 8x40 or 4x44 with step-up converter |
Key Features
- Ultra-low-power consumption with various power-saving modes (e.g., VBAT mode, Shutdown mode, Standby mode, Stop 2 mode)
- High-speed memories and Quad SPI flash memory interface
- Extensive range of enhanced I/Os and peripherals connected to multiple buses
- Integrated LCD driver with step-up converter and capacitive sensing channels
- Rich analog peripherals including 12-bit ADC, 12-bit DAC channels, operational amplifier, and comparators
- Multiple communication interfaces such as USB, I2C, SPI, USART, CAN, and SDMMC
- True random number generator, CRC calculation unit, and 96-bit unique ID
- Development support with serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™
Applications
The STM32L433CCU6TR is suitable for a wide range of applications requiring low power consumption and high performance. These include:
- IoT devices and smart home applications
- Industrial automation and control systems
- Medical devices and healthcare equipment
- Automotive systems, especially those requiring low power and high reliability
- Consumer electronics and wearable devices
Q & A
- What is the core architecture of the STM32L433CCU6TR?
The STM32L433CCU6TR is based on the Arm® 32-bit Cortex®-M4 CPU with a Floating Point Unit (FPU). - What is the maximum operating frequency of the STM32L433CCU6TR?
The maximum operating frequency is up to 80 MHz. - How much flash memory and SRAM does the STM32L433CCU6TR have?
The device has up to 256 KB of flash memory and 64 KB of SRAM. - What is the power supply range for the STM32L433CCU6TR?
The power supply range is 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 analog peripherals of the STM32L433CCU6TR?
The key analog peripherals include a 12-bit ADC, 12-bit DAC channels, an operational amplifier, and two ultra-low-power comparators. - Does the STM32L433CCU6TR support capacitive sensing?
Yes, it supports up to 21 capacitive sensing channels. - What communication interfaces are available on the STM32L433CCU6TR?
The device features multiple communication interfaces including USB, I2C, SPI, USART, CAN, and SDMMC. - What is the operating temperature range of the STM32L433CCU6TR?
The operating temperature range is from -40 °C to +85 °C / +105 °C / +125 °C. - What development tools are supported by the STM32L433CCU6TR?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™. - Is the STM32L433CCU6TR RoHS compliant?
Yes, the device is RoHS compliant and all packages are ECOPACK2 compliant.
