Overview
The STM32L412CBT6P 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.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, up to 80 MHz |
| Memory | 128 KB single bank flash, 40 KB of SRAM |
| ADC | Two fast 12-bit ADC (5 Msps), up to 16-bit with hardware oversampling |
| Timers | One 32-bit timer, four 16-bit timers, two low-power 16-bit timers, one 16-bit advanced motor-control timer |
| Communication Interfaces | Three I2Cs, two SPIs, three USARTs, one Low-Power UART, one USB 2.0 full-speed device |
| Power Supply | 1.71 to 3.6 V (internal LDO), 1.00 to 1.32 V (external SMPS) |
| Temperature Range | -40 to +85 °C (+105 °C junction), -40 to +125 °C (+130 °C junction) |
| Package | LQFP 48 7x7x1.4 mm |
| Power Modes | VBAT mode, Shutdown mode, Standby mode, Stop 2 mode |
Key Features
- Ultra-low-power with FlexPowerControl
- Includes ST state-of-the-art patented technology
- Low-power RTC with HW calendar, alarms, and calibration
- Up to 12 capacitive sensing channels for touchkey, linear, and rotary touch sensors
- Rich analog peripherals including operational amplifier and comparator
- Comprehensive set of power-saving modes
- Independent power supplies for ADC, OPAMP, and comparator
- True random number generator and CRC calculation unit
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
Applications
The STM32L412CBT6P is suitable for a wide range of applications, including:
- Industrial automation and control systems
- Personal electronics such as wearables and IoT devices
- Medical devices requiring low power consumption
- Automotive systems, especially those needing advanced motor control
- Smart home and building automation
Q & A
- What is the core architecture of the STM32L412CBT6P?
The STM32L412CBT6P is based on the Arm® 32-bit Cortex®-M4 CPU with a Floating Point Unit (FPU). - What is the maximum operating frequency of the STM32L412CBT6P?
The maximum operating frequency is up to 80 MHz. - What types of memory does the STM32L412CBT6P have?
The device has 128 KB of single bank flash memory and 40 KB of SRAM. - What are the power supply options for the STM32L412CBT6P?
The device can operate from 1.71 to 3.6 V using an internal LDO regulator or from 1.00 to 1.32 V using an external SMPS supply. - What is the temperature range for the STM32L412CBT6P?
The operating temperature range is -40 to +85 °C (+105 °C junction) and -40 to +125 °C (+130 °C junction). - What communication interfaces are available on the STM32L412CBT6P?
The device features three I2Cs, two SPIs, three USARTs, one Low-Power UART, and one USB 2.0 full-speed device. - Does the STM32L412CBT6P support capacitive sensing?
Yes, it supports up to 12 capacitive sensing channels. - What are the power-saving modes available on the STM32L412CBT6P?
The device offers VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode. - Is the STM32L412CBT6P suitable for industrial applications?
Yes, it is suitable for industrial automation and control systems due to its robust features and low power consumption. - Does the STM32L412CBT6P have any specific security features?
Yes, it includes a memory protection unit (MPU) and various protection mechanisms for embedded flash memory and SRAM.
