STMicroelectronics' model STM32L412CBT6 (click to buy now) is an ultra-low-power 32-bit MCU microcontroller that uses the high-performance Arm® Cortex®-M4 32-bit RISC core and operates at a frequency of up to 80MHz. The Cortex-M4 core features a floating-point unit (FPU) single precision and supports all Arm® single-precision data processing instructions and data types. It also implements a comprehensive set of DSP instructions and a Memory Protection Unit (MPU) that enhances application security.
The STM32L412CBT6 embeds high-speed memory (up to 128 KB of Flash and 40 KB of SRAM), a Quad SPI Flash interface (available on all packages) and a host of enhanced connectivity to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix I/O and peripherals.
STM32L412CBT6 embeds several protection mechanisms for embedded flash and SRAM: read protection, write protection, proprietary code read protection and firewall. STM32L412CBT6 provides two fast 12-bit ADCs (5 Msps), two comparators, an operational amplifier, a low-power RTC, a general-purpose 32-bit timer, a 16-bit PWM timer dedicated to motor control, four general-purpose 16-bit timer and two 16-bit low-power timers. Additionally, up to 12 capacitive sensing channels are available. STM32L412CBT6 also has standard and advanced communication interfaces, namely three I2C, two SPI, three USART and one low-power UART, and one USB full-speed crystalless device.
Functional features of STM32L412CBT6
1. Low power consumption: Using the ARM Cortex-M4 core, it has good energy efficiency optimization and low power consumption characteristics, and is suitable for long-running battery-powered applications.
2. Memory and storage: It has 256KB Flash memory and 64KB SRAM, which can store and process large amounts of data and programs.
3. Multiple communication interfaces: Supports multiple communication interfaces, such as SPI, I2C, UART, etc., to facilitate data interaction with external devices.
4. Powerful peripheral functions: including multiple general-purpose timers, PWM output, ADC and DAC converters, low-power UART, etc., suitable for various application scenarios.
5. Security support: Equipped with security functions such as hardware encryption engine and random number generator to protect the data security of the device.
6. Rich interrupt and clock control functions: It has multiple interrupt vectors and clock control modules to flexibly support various complex application requirements.
7. Rich development tools and support: STMicroelectronics provides a complete development tool chain, including an integrated development environment (IDE), debugger and software library, to facilitate developers to quickly develop and debug.
Application fields of STM32L412CBT6
STM32L412CBT6 is a high-performance, low-power 32-bit MCU microcontroller. Its main application areas are as follows:
1. Internet of Things (IoT) devices: STM32L412CBT6 has low power consumption and multiple communication interfaces, making it very suitable for IoT devices such as smart homes, smart cities, and industrial automation.
2. Medical equipment: Due to its low power consumption and rich peripheral interfaces, STM32L412CBT6 can be used in medical equipment such as monitoring equipment, electrocardiographs, and blood pressure monitors.
3. Environmental monitoring: STM32L412CBT6 has a sensor interface and low power consumption mode, and can be used for gas, humidity, temperature and other environmental monitoring equipment, such as smart door locks, smoke alarms, etc.
4. Industrial control: STM32L412CBT6 supports a variety of communication interfaces (such as UART, SPI, I2C) and can be widely used in industrial control fields, such as PLC, automated robots, and process control.
5. Smart grid: Due to its high performance and low power consumption, STM32L412CBT6 can be used in smart grid applications such as smart meters and energy monitoring.
6. Consumer electronics: STM32L412CBT6 is suitable for various consumer electronics products, such as smart watches, smart speakers and wearable devices.
Parameters of STM32L412CBT6
Brand: STMicroelectronics
Series: STM32L4
Installation type: SMT
Package/casing: LQFP48
Working temperature: -40℃~+85℃
Interfaces: I²C, Infrared, IrDA, LINbus, Quad SPI, SPI, UART/USART, USB
Part status: Active
CPU core: ARM Cortex-M4
Main frequency speed (Max): 80MHz
Number of I/Os: 38
Program space capacity: 128KB
Program space type: flash memory
Working voltage (range): 1.71V~3.6V
Memory RAM capacity: 40x8KB
Kernel specifications: 32Bit
Pin diagram of STM32L412CBT6
Functional block diagram of STM32L412CBT6
