Overview
The STM32L433CCT3 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.
The device is equipped with high-speed memories, including up to 256 Kbytes of flash memory and 64 Kbytes of SRAM. It also features a Quad SPI flash memories interface, an extensive range of enhanced I/Os and peripherals, and multiple communication interfaces such as USB, I2C, SPI, USART, and CAN.
The STM32L433CCT3 is designed for low-power applications, offering various power-saving modes and a wide operating temperature range from -40 to +85/105/125 °C.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® Cortex®-M4 32-bit RISC core |
| Frequency | Up to 80 MHz |
| Flash Memory | Up to 256 Kbytes |
| SRAM | 64 Kbytes |
| Power Supply | 1.71 V to 3.6 V (internal LDO), 1.05 to 1.32 V (external SMPS) |
| Temperature Range | -40 to +85/105/125 °C |
| ADC | 12-bit, 5 Msps |
| DAC | 2 channels |
| Timers | 1x 32-bit, 5x 16-bit |
| Communication Interfaces | USB FS, 3x I2C, 3x SPI, 3x USART, 1x CAN, 1x SDMMC |
| Package | LQFP 48 (7x7x1.4 mm) |
Key Features
- Ultra-low-power with FlexPowerControl
- Includes ST state-of-the-art patented technology
- 1.71 V to 3.6 V power supply
- -40 °C to 85/105/125 °C temperature range
- Low 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, 1.28 µA with RTC
- Batch acquisition mode (BAM) and 4 µs wakeup from Stop mode
- Brown out reset (BOR)
- Integrated LCD driver 8x40 or 4x44 with internal step-up converter
- Up to 21 capacitive sensing channels
- True random number generator, CRC calculation unit, and 96-bit unique ID
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
Applications
The STM32L433CCT3 is suitable for a wide range of applications, including:
- Smart home devices
- Industrial automation and control systems
- Automotive systems
- Healthcare devices
- Low-power IoT devices
Q & A
- What is the core architecture of the STM32L433CCT3?
The STM32L433CCT3 is based on the Arm® Cortex®-M4 32-bit RISC core.
- What is the maximum operating frequency of the STM32L433CCT3?
The maximum operating frequency is up to 80 MHz.
- How much flash and SRAM memory does the STM32L433CCT3 have?
The device has up to 256 Kbytes of flash memory and 64 Kbytes of SRAM.
- What is the power supply range for the STM32L433CCT3?
The power supply range is from 1.71 V to 3.6 V using the internal LDO regulator, and from 1.05 to 1.32 V using an external SMPS.
- What are the low power modes available in the STM32L433CCT3?
The device features several low power modes including VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode.
- Does the STM32L433CCT3 support LCD and capacitive sensing?
Yes, it includes an integrated LCD driver and up to 21 capacitive sensing channels.
- What communication interfaces are available on the STM32L433CCT3?
The device features USB FS, I2C, SPI, USART, CAN, and SDMMC interfaces.
- What is the package type of the STM32L433CCT3?
The package type is LQFP 48 (7x7x1.4 mm).
- What are the temperature ranges for the STM32L433CCT3?
The operating temperature range is from -40 to +85/105/125 °C.
- Does the STM32L433CCT3 support development tools like SWD and JTAG?
Yes, it supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
