Overview
The STM32L412C8T6 is an ultra-low-power microcontroller from STMicroelectronics, based on the high-performance Arm® Cortex®-M4 32-bit RISC core. This device 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.
The microcontroller is designed for low-power applications, offering various power-saving modes and a wide range of peripherals and interfaces. It is suitable for 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 |
| Flash Memory | 128 KB single bank flash, proprietary code readout protection |
| SRAM | 40 KB including 8 KB with hardware parity check |
| Power Supply | 1.71 V to 3.6 V (internal LDO), 1.00 to 1.32 V (external SMPS) |
| Temperature Range | -40 °C to 85 °C / 125 °C |
| ADC | 2x 12-bit ADC, 5 Msps, up to 16-bit with hardware oversampling |
| Timers | 1x 32-bit, 4x 16-bit general purpose, 1x 16-bit advanced motor-control, 2x low-power 16-bit timers |
| Communication Interfaces | USB 2.0 full-speed, 3x I2C, 3x USART, 1x LPUART, 2x SPI, 1x Quad SPI |
| Capacitive Sensing Channels | Up to 12 channels |
| Power Modes | Shutdown, Standby, Stop 2, VBAT mode |
| Package Options | LQFP 48, UFQFPN 48 |
Key Features
- Ultra-low-power with FlexPowerControl, supporting various power-saving modes such as Shutdown, Standby, and Stop 2 modes.
- Includes ST state-of-the-art patented technology and ECOPACK2 compliant packages.
- Rich analog peripherals including 2x 12-bit ADCs, 1x operational amplifier, and 1x ultra-low-power comparator.
- Extensive range of communication interfaces: USB 2.0 full-speed, 3x I2C, 3x USART, 1x LPUART, 2x SPI, and 1x Quad SPI.
- Up to 12 capacitive sensing channels supporting touchkey, linear, and rotary touch sensors.
- Advanced timers: 1x 16-bit advanced motor-control, 1x 32-bit, and multiple 16-bit general-purpose and low-power timers.
- True random number generator, CRC calculation unit, and 96-bit unique ID.
- Development support: serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
Applications
The STM32L412C8T6 is suitable for a wide range of applications that require high performance and low energy consumption, such as:
- Industrial automation and control systems.
- Medical devices requiring precise analog measurements.
- Consumer electronics with touch sensing capabilities.
- Automotive systems, especially those needing advanced motor control and low power consumption.
- IoT devices that demand efficient power management and robust communication interfaces.
Q & A
- What is the core architecture of the STM32L412C8T6?
The STM32L412C8T6 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 ranges for this microcontroller?
The device operates from 1.71 V to 3.6 V using the internal LDO regulator and from 1.00 to 1.32 V using an external SMPS supply.
- What are the key analog peripherals available on this device?
The device includes 2x 12-bit ADCs, 1x operational amplifier, and 1x ultra-low-power comparator.
- What communication interfaces are supported by the STM32L412C8T6?
The device supports USB 2.0 full-speed, 3x I2C, 3x USART, 1x LPUART, 2x SPI, and 1x Quad SPI.
- What are the power-saving modes available on this microcontroller?
The device supports Shutdown, Standby, Stop 2, and VBAT modes to minimize power consumption.
- What is the temperature range for the STM32L412C8T6?
The device operates in the -40 °C to 85 °C / 125 °C temperature range.
- How many capacitive sensing channels does the STM32L412C8T6 support?
The device supports up to 12 capacitive sensing channels.
- What development tools are available for this microcontroller?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ for development.
- Is the STM32L412C8T6 environmentally friendly?
Yes, the device is ECOPACK2 compliant, indicating it meets certain environmental standards.
- What are the available package options for the STM32L412C8T6?
The device is available in LQFP 48 and UFQFPN 48 packages.
