Overview
The STM32L451CCU6TR is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L4 series. It is based on the high-performance Arm® Cortex®-M4 32-bit RISC core, operating at a frequency of up to 80 MHz. The Cortex-M4 core includes a Floating Point Unit (FPU) that supports all Arm® single-precision data-processing instructions and data types, along with a full set of DSP instructions and a Memory Protection Unit (MPU) for enhanced application security.
The device features high-speed memories, including up to 512 KB of Flash memory and 160 KB of SRAM, along with a Quad SPI Flash memory interface. It also includes an extensive range of enhanced I/Os and peripherals connected to multiple buses.
The STM32L451CCU6TR operates within a temperature range of -40 to +85 °C (or +125 °C junction temperature) and is powered by a 1.71 to 3.6 V supply. It offers various power-saving modes, making it suitable for low-power applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, up to 80 MHz |
| Memory | Up to 512 KB Flash, 160 KB SRAM |
| Power Supply | 1.71 to 3.6 V |
| Temperature Range | -40 to +85 °C (or +125 °C junction temperature) |
| ADC | 12-bit, 5 Msps, up to 16-bit with hardware oversampling |
| DAC | 12-bit output channel |
| Timers | 1x 32-bit, 5x 16-bit, 2x low-power 16-bit timers |
| Communication Interfaces | 4x I2C, 3x SPI, 3x USART, 1x UART, 1x LPUART, 1x CAN (2.0B Active), 1x SDMMC |
| Package | UFQFPN 48 7x7x0.55 mm |
| Power Modes | VBAT mode: 145 nA, Shutdown mode: 22 nA, Standby mode: 106 nA, Stop 2 mode: 2.05 µA, Run mode: 84 µA/MHz |
Key Features
- Ultra-low-power with FlexPowerControl
- Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™)
- High-speed memories: up to 512 KB Flash, 160 KB SRAM
- Quad SPI Flash memory interface
- Rich analog peripherals: 12-bit ADC, 12-bit DAC, operational amplifier, comparators
- Extensive range of communication interfaces: I2C, SPI, USART, UART, LPUART, CAN, SDMMC
- Low-power RTC, general-purpose timers, and low-power timers
- Up to 21 capacitive sensing channels
- Comprehensive set of power-saving modes
- Independent power supplies for analog peripherals
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
Applications
The STM32L451CCU6TR is suitable for a wide range of applications requiring low power consumption and high performance, such as:
- IoT devices and smart sensors
- Industrial automation and control systems
- Medical devices and healthcare equipment
- Consumer electronics and wearables
- Automotive systems and telematics
Q & A
- What is the core architecture of the STM32L451CCU6TR?
The STM32L451CCU6TR is based on the Arm® 32-bit Cortex®-M4 CPU with a Floating Point Unit (FPU).
- What is the operating temperature range of the STM32L451CCU6TR?
The device operates in the -40 to +85 °C (or +125 °C junction temperature) range.
- What are the power supply requirements for the STM32L451CCU6TR?
The device is powered by a 1.71 to 3.6 V supply.
- What types of memory does the STM32L451CCU6TR have?
The device features up to 512 KB of Flash memory and 160 KB of SRAM.
- What are the key analog peripherals of the STM32L451CCU6TR?
The device includes a 12-bit ADC, a 12-bit DAC, an operational amplifier, and comparators.
- What communication interfaces are available on the STM32L451CCU6TR?
The device includes I2C, SPI, USART, UART, LPUART, CAN, and SDMMC interfaces.
- What are the power-saving modes available on the STM32L451CCU6TR?
The device offers VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode among others.
- Does the STM32L451CCU6TR support capacitive sensing?
Yes, the device supports up to 21 capacitive sensing channels.
- What development tools are supported by the STM32L451CCU6TR?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
- What is the package type of the STM32L451CCU6TR?
The device is available in a UFQFPN 48 7x7x0.55 mm package.
- Is the STM32L451CCU6TR RoHS compliant?
Yes, the device is RoHS compliant and ECOPACK2® certified.
