Overview
The STM32L431CCT6TR is an ultra-low-power microcontroller from STMicroelectronics, based on the high-performance Arm® Cortex®-M4 32-bit RISC core. This device features a Floating Point Unit (FPU) for single-precision operations, a full set of DSP instructions, and a memory protection unit (MPU) to enhance application security. The STM32L431CCT6TR operates within a temperature range of -40 °C to 85 °C, 105 °C, or 125 °C, depending on the junction temperature, and is powered by a 1.71 to 3.6 V supply.
The microcontroller is designed for low-power applications, offering various power-saving modes and independent power supplies for analog components such as the ADC, DAC, OPAMP, and comparators. It also includes a VBAT input for backing up the RTC and backup registers.
Key Specifications
| Specification | Value |
|---|---|
| Part Number | STM32L431CCT6TR |
| Core | Arm® Cortex®-M4 32-bit RISC |
| Operating Temperature (°C) | -40 to 85/105/125 °C |
| Power Supply | 1.71 to 3.6 V |
| Flash Memory | Up to 256 Kbyte |
| SRAM | 64 Kbyte |
| ADC | 12-bit, 5 Msps |
| DAC Channels | 2 (12-bit) |
| Timers (16-bit) | 5 |
| Timers (32-bit) | 1 |
| Integrated Op-Amps | 1 |
| Comparators | 2 |
| SPI | 3 |
| USART | 3 |
| High Current I/Os | 38 |
| CAN (2.0) | 1 |
Key Features
- Ultra-low-power consumption with FlexPowerControl.
- High-performance Arm® Cortex®-M4 32-bit RISC core with FPU and DSP instructions.
- Fast 12-bit ADC with 5 Msps and two DAC channels.
- One operational amplifier and two comparators.
- Low-power RTC with VBAT input for backup.
- Multiple timers including one 32-bit timer and five 16-bit timers.
- Up to 21 capacitive sensing channels.
- Standard and advanced communication interfaces including SPI, USART, and CAN.
- Independent power supplies for analog components.
- Comprehensive set of power-saving modes.
Applications
- Low-power IoT devices and sensors.
- Industrial automation and control systems.
- Medical devices requiring low power consumption.
- Automotive systems, especially those needing advanced motor control.
- Consumer electronics with power efficiency requirements.
Q & A
- What is the core architecture of the STM32L431CCT6TR?
The STM32L431CCT6TR is based on the Arm® Cortex®-M4 32-bit RISC core.
- What is the operating temperature range of the STM32L431CCT6TR?
The operating temperature range is -40 °C to 85 °C, 105 °C, or 125 °C.
- What is the power supply voltage range for the STM32L431CCT6TR?
The power supply voltage range is 1.71 to 3.6 V.
- How much flash memory does the STM32L431CCT6TR have?
The STM32L431CCT6TR has up to 256 Kbyte of flash memory.
- What types of timers are available on the STM32L431CCT6TR?
The device includes one 32-bit timer and five 16-bit timers.
- Does the STM32L431CCT6TR support CAN communication?
Yes, it supports CAN 2.0 communication.
- How many high current I/Os does the STM32L431CCT6TR have?
The device has 38 high current I/Os.
- What is the purpose of the VBAT input on the STM32L431CCT6TR?
The VBAT input is used to backup the RTC and backup registers.
- Does the STM32L431CCT6TR have any integrated op-amps or comparators?
Yes, it includes one operational amplifier and two comparators.
- What are some typical applications for the STM32L431CCT6TR?
Typical applications include low-power IoT devices, industrial automation, medical devices, automotive systems, and consumer electronics.
