Overview
The STM32L433CCU3TR is an ultra-low-power microcontroller from STMicroelectronics, based on the high-performance Arm® Cortex®-M4 32-bit RISC core. This device 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 is designed for low-power applications, making it ideal for battery-powered devices and energy-efficient systems.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® Cortex®-M4 32-bit RISC core with FPU |
| Operating Frequency | Up to 80 MHz |
| Power Supply | 1.71 V to 3.6 V |
| Temperature Range | -40 °C to 85/105/125 °C |
| Flash Memory | Up to 256 KB |
| SRAM | 64 KB |
| Communication Interfaces | USB 2.0 full-speed, 3x I2C, 3x SPI, 4x USART, 1x LPUART, CAN, SDMMC, SWPMI |
| Timers | 1x 32-bit, 5x 16-bit, 2x low-power 16-bit timers |
| Analog Peripherals | 1x 12-bit ADC, 2x 12-bit DAC, 1x operational amplifier, 2x comparators |
| Power Modes | VBAT mode: 200 nA, Shutdown mode: 8 nA, Standby mode: 28 nA, Stop 2 mode: 1.0 µA |
| Package | UFQFPN 48 7x7x0.55 mm |
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
- Fast 12-bit ADC (5 Msps), two comparators, one operational amplifier, two DAC channels
- Internal voltage reference buffer, low-power RTC, and various timers
- Up to 21 capacitive sensing channels and integrated LCD driver
- Standard and advanced communication interfaces including USB, I2C, SPI, USART, CAN, SDMMC
- True random number generator, CRC calculation unit, and 96-bit unique ID
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
Applications
- Battery-powered devices and energy-efficient systems
- Industrial automation and control systems
- Medical devices requiring low power consumption
- Consumer electronics such as smart home devices and wearables
- Automotive systems where low power and high performance are critical
- IoT devices and smart sensors
Q & A
- What is the core architecture of the STM32L433CCU3TR?
The STM32L433CCU3TR is based on the Arm® Cortex®-M4 32-bit RISC core with a Floating Point Unit (FPU).
- What is the operating frequency of the STM32L433CCU3TR?
The device operates at a frequency of up to 80 MHz.
- What is the power supply range for the STM32L433CCU3TR?
The power supply range is from 1.71 V to 3.6 V.
- What are the key power-saving modes of the STM32L433CCU3TR?
The device features VBAT mode (200 nA), Shutdown mode (8 nA), Standby mode (28 nA), and Stop 2 mode (1.0 µA).
- What types of communication interfaces does the STM32L433CCU3TR support?
The device supports USB 2.0 full-speed, I2C, SPI, USART, LPUART, CAN, SDMMC, and SWPMI.
- What are the key analog peripherals of the STM32L433CCU3TR?
The device includes a 12-bit ADC, two 12-bit DAC channels, an operational amplifier, and two comparators.
- Does the STM32L433CCU3TR support capacitive sensing?
Yes, it supports up to 21 capacitive sensing channels.
- What is the package type of the STM32L433CCU3TR?
The package type is UFQFPN 48 7x7x0.55 mm.
- What development tools are supported by the STM32L433CCU3TR?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
- Is the STM32L433CCU3TR RoHS compliant?
Yes, the device is RoHS compliant and ECOPACK2 certified.
- What are some typical applications for the STM32L433CCU3TR?
Typical applications include battery-powered devices, industrial automation, medical devices, consumer electronics, automotive systems, and IoT devices.
