Overview
The STM32L443CCU6 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 STM32L443CCU6 is designed for applications requiring low power consumption and high performance, making it suitable for a wide range of industrial, consumer, and IoT devices.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, up to 80 MHz |
| Memory | 256 KB single bank Flash, 64 KB SRAM (including 16 KB with hardware parity check) |
| Power Supply | 1.71 V to 3.6 V |
| Temperature Range | -40 °C to 85/105/125 °C |
| Low Power Modes | 200 nA in VBAT mode, 8 nA Shutdown mode, 28 nA Standby mode, 280 nA Standby mode with RTC, 1.0 µA Stop 2 mode |
| ADC | 1x 12-bit ADC, 5 Msps, up to 16-bit with hardware oversampling |
| DAC | 2x 12-bit DAC output channels, low-power sample and hold |
| Timers | 1x 32-bit, 5x 16-bit timers (including 1 advanced motor-control timer and 2 low-power timers) |
| Communication Interfaces | USB 2.0 full-speed, 1x SAI, 3x I2C, 4x USART, 3x SPI, CAN 2.0B |
| Package | UFQFPN 48 7x7x0.55 mm |
| Capacitive Sensing Channels | Up to 21 channels |
| RTC | With HW calendar, alarms, and calibration |
| LCD Driver | 8x40 or 4x44 with internal step-up converter |
Key Features
- Ultra-low-power with FlexPowerControl
- Adaptive real-time accelerator (ART Accelerator™) for 0-wait-state execution from Flash memory
- Rich analog peripherals including 12-bit ADC, 12-bit DAC, operational amplifier, and ultra-low-power comparators
- Advanced security features such as AES 128/256-bit key encryption hardware accelerator and memory protection mechanisms
- Extensive range of communication interfaces including USB, SAI, I2C, USART, SPI, and CAN
- Up to 83 fast I/Os, most 5 V-tolerant
- Integrated LCD driver and capacitive sensing channels
- Low power modes with fast wakeup times (4 µs from Stop mode)
Applications
The STM32L443CCU6 is versatile and can be used in a variety of applications, including:
- Industrial automation and control systems
- Consumer electronics requiring low power consumption
- Internet of Things (IoT) devices
- Medical devices and healthcare equipment
- Automotive systems and telematics
- Smart home and building automation
Q & A
- What is the core architecture of the STM32L443CCU6?
The STM32L443CCU6 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 range specifications?
The device operates with a power supply of 1.71 V to 3.6 V and a temperature range of -40 °C to 85/105/125 °C. - What are the low power modes available on this device?
The device features several low power 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 the STM32L443CCU6?
The device includes 1x 32-bit timer, 5x 16-bit timers (including 1 advanced motor-control timer and 2 low-power timers), and 2 watchdogs. - What communication interfaces does the STM32L443CCU6 support?
The device supports USB 2.0 full-speed, SAI, I2C, USART, SPI, and CAN 2.0B interfaces. - Does the STM32L443CCU6 have built-in security features?
Yes, it includes an AES 128/256-bit key encryption hardware accelerator and various memory protection mechanisms. - What is the purpose of the ART Accelerator™ in the STM32L443CCU6?
The ART Accelerator™ allows for 0-wait-state execution from Flash memory, enhancing performance. - Can the STM32L443CCU6 be used in IoT applications?
Yes, its low power consumption and rich set of peripherals make it suitable for IoT devices. - What type of LCD driver does the STM32L443CCU6 have?
The device features an integrated LCD driver supporting 8x40 or 4x44 displays with an internal step-up converter. - How many capacitive sensing channels are available on the STM32L443CCU6?
Up to 21 capacitive sensing channels are available, supporting touchkey, linear, and rotary touch sensors.
