Overview
The STM32L452CCU6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L452xx family. It is based on the high-performance Arm® Cortex®-M4 32-bit RISC core, operating at a frequency of up to 80 MHz. This microcontroller features a Floating Point Unit (FPU) that supports all Arm® single-precision data-processing instructions and includes a full set of DSP instructions and a Memory Protection Unit (MPU) for enhanced application security.
The device is designed for low-power applications, offering various power-saving modes and a wide range of peripherals and interfaces. It is suitable for use in a variety of applications requiring high performance and low energy consumption.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® Cortex®-M4 32-bit RISC core with FPU, up to 80 MHz |
| Memory | Up to 512 KB single bank Flash, 160 KB of SRAM (including 32 KB with hardware parity check) |
| Power Supply | 1.71 V to 3.6 V (internal LDO regulator), 1.05 to 1.32 V (external SMPS supply) |
| Temperature Range | -40 °C to 85 °C / 125 °C (junction temperature) |
| Timers | 1x 16-bit advanced motor-control, 1x 32-bit, 3x 16-bit general purpose, 2x 16-bit basic, 2x low-power 16-bit timers |
| Analog Peripherals | 1x 12-bit ADC (5 Msps), 1x 12-bit DAC, 1x operational amplifier, 2x ultra-low-power comparators |
| Communication Interfaces | USB 2.0 full-speed, 4x I2C, 3x SPI, 3x USART, 1x UART, 1x LPUART, CAN (2.0B Active), SDMMC interface |
| Package | UFQFPN 48 7x7x0.55 mm |
| Power Consumption | 145 nA in VBAT mode, 22 nA Shutdown mode, 106 nA Standby mode, 375 nA Standby mode with RTC |
Key Features
- Ultra-low-power with FlexPowerControl
- Arm® Cortex®-M4 32-bit RISC core with FPU, up to 80 MHz
- Up to 512 KB single bank Flash, 160 KB of SRAM
- Quad SPI Flash memories interface
- Rich analog peripherals: 12-bit ADC, 12-bit DAC, operational amplifier, ultra-low-power comparators
- 17 communication interfaces including USB 2.0, I2C, SPI, USART, UART, CAN, and SDMMC
- Up to 21 capacitive sensing channels for touchkey, linear, and rotary touch sensors
- Low-power modes: VBAT mode, Shutdown mode, Standby mode, Stop 2 mode
- Fast wakeup from Stop mode (4 µs)
- Brown out reset (BOR) and interconnect matrix
- True random number generator, CRC calculation unit, and 96-bit unique ID
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
Applications
- IoT devices requiring low power consumption and high performance
- Industrial automation and control systems
- Medical devices and healthcare equipment
- Consumer electronics such as smart home devices and wearables
- Automotive systems, especially those requiring low power and high reliability
- Sensor networks and data acquisition systems
Q & A
- What is the core architecture of the STM32L452CCU6?
The STM32L452CCU6 is based on the Arm® Cortex®-M4 32-bit RISC core with a Floating Point Unit (FPU), operating at up to 80 MHz.
- What are the memory specifications of the STM32L452CCU6?
The device features up to 512 KB single bank Flash and 160 KB of SRAM, including 32 KB with hardware parity check.
- What is the power supply range for the STM32L452CCU6?
The power supply range is from 1.71 V to 3.6 V using the internal LDO regulator, and from 1.05 V to 1.32 V using an external SMPS supply.
- What are the key analog peripherals available on the STM32L452CCU6?
The device includes a 12-bit ADC, a 12-bit DAC, an operational amplifier, and two ultra-low-power comparators.
- What communication interfaces are available on the STM32L452CCU6?
The device features USB 2.0 full-speed, four I2C interfaces, three SPI interfaces, three USARTs, one UART, one LPUART, CAN (2.0B Active), and an SDMMC interface.
- What are the low-power modes supported by the STM32L452CCU6?
The device supports VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode, among others, to minimize power consumption.
- How quickly can the STM32L452CCU6 wake up from Stop mode?
The device can wake up from Stop mode in as little as 4 µs.
- What development tools are supported by the STM32L452CCU6?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ for development.
- What is the temperature range for the STM32L452CCU6?
The operating temperature range is from -40 °C to 85 °C / 125 °C (junction temperature).
- What package options are available for the STM32L452CCU6?
The device is available in a UFQFPN 48 7x7x0.55 mm package.
- Is the STM32L452CCU6 compliant with any environmental standards?
Yes, the device is ECOPACK2® compliant.
