Overview
The STM32L433RCI6TR is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L433xx family. 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 various power-saving modes and a comprehensive set of 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 flash, 64 KB SRAM |
| Power Supply | 1.71 V to 3.6 V |
| Temperature Range | -40 °C to 85/105/125 °C |
| Low Power Modes | 200 nA in VBAT mode, 8 nA Shutdown mode, 28 nA Standby mode |
| 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 |
| Communication Interfaces | 3x I2C, 3x SPI, 3x USART, 1x Low-Power UART, 1x SAI, 1x SDMMC, 1x CAN, 1x USB full-speed |
| Package | UFBGA 64 5x5x0.6 P 0.5 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, general-purpose timers
- Up to 21 capacitive sensing channels, integrated LCD driver 8x40 or 4x44 with internal step-up converter
- Standard and advanced communication interfaces: I2C, SPI, USART, Low-Power UART, SAI, SDMMC, CAN, USB full-speed
- Independent power supplies for analog peripherals and USB
- VBAT input for backup of RTC and backup registers
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
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 low power and high performance
- IoT devices and smart sensors
- Energy metering and monitoring systems
Q & A
- What is the core architecture of the STM32L433RCI6TR?
The STM32L433RCI6TR 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 power supply and temperature range specifications?
The device operates from a 1.71 V to 3.6 V power supply and has a temperature range of -40 °C to 85/105/125 °C.
- What are the low power modes available on this microcontroller?
The device features several low power modes including 200 nA in VBAT mode, 8 nA Shutdown mode, and 28 nA Standby mode.
- What types of timers are available on the STM32L433RCI6TR?
The device includes 1x 32-bit timer, 5x 16-bit timers, and 2x low-power 16-bit timers.
- What analog peripherals are integrated into the STM32L433RCI6TR?
The device includes a 12-bit ADC, two 12-bit DAC channels, one operational amplifier, and two comparators.
- What communication interfaces are available on this microcontroller?
The device features 3x I2C, 3x SPI, 3x USART, 1x Low-Power UART, 1x SAI, 1x SDMMC, 1x CAN, and 1x USB full-speed interface.
- What is the package type for the STM32L433RCI6TR?
The device is available in a UFBGA 64 5x5x0.6 P 0.5 mm package.
- Does the STM32L433RCI6TR support capacitive sensing?
Yes, the device supports up to 21 capacitive sensing channels.
- Is the STM32L433RCI6TR suitable for industrial applications?
Yes, it is suitable for industrial automation and control systems due to its high performance and low power consumption.
- What development tools are supported by the STM32L433RCI6TR?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ for development.
- Is the STM32L433RCI6TR RoHS compliant?
Yes, the device is RoHS compliant and follows the ECOPACK2 standards.
