Overview
The STM32L433RCT6TR 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 | Value |
|---|---|
| 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 |
| Power Consumption | 200 nA in VBAT mode, 8 nA in Shutdown mode, 28 nA in Standby mode |
| Timers | 1x 32-bit, 5x 16-bit general purpose, 2x 16-bit low-power timers |
| ADC | 1x 12-bit, 5 Msps |
| DAC | 2x 12-bit output channels |
| 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 |
Key Features
- Ultra-low-power with FlexPowerControl and multiple power-saving modes
- High-speed memories: up to 256 KB flash, 64 KB SRAM, and Quad SPI flash memory interface
- Extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses, and a 32-bit multi-AHB bus matrix
- Protection mechanisms: readout protection, write protection, proprietary code readout protection, and Firewall
- Analog peripherals: 12-bit ADC, 12-bit DAC, operational amplifier, and ultra-low-power comparators
- Integrated LCD driver 8x40 or 4x44 with internal step-up converter
- Up to 21 capacitive sensing channels supporting touchkey, linear, and rotary touch sensors
- Standard and advanced communication interfaces including USB, CAN, and SDMMC
- 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 high reliability and low power
- IoT devices and smart sensors
Q & A
- What is the core architecture of the STM32L433RCT6TR?
The STM32L433RCT6TR 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 ranges for this microcontroller?
The power supply range is 1.71 V to 3.6 V, and the temperature range is -40 °C to 85/105/125 °C.
- What are the key power-saving modes of the STM32L433RCT6TR?
The device features several power-saving modes including VBAT mode (200 nA), Shutdown mode (8 nA), Standby mode (28 nA), and Stop 2 mode (1.0 µA).
- What types of timers are available on this microcontroller?
The device includes 1x 32-bit timer, 5x 16-bit general-purpose timers, and 2x 16-bit low-power timers.
- What analog peripherals are integrated into the STM32L433RCT6TR?
The device includes a 12-bit ADC, 2x 12-bit DAC output channels, an operational amplifier, and ultra-low-power comparators.
- Does the STM32L433RCT6TR support capacitive sensing?
- 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 device.
- What is the package type for the STM32L433RCT6TR?
The package type is LQFP 64 10x10x1.4 mm.
- Is the STM32L433RCT6TR RoHS compliant?
- What development tools are supported for this microcontroller?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
