STM32L452CEU3
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STMicroelectronics STM32L452CEU3

Manufacturer No:
STM32L452CEU3
Manufacturer:
STMicroelectronics
Package:
Tray
Description:
IC MCU 32BIT 512KB FLSH 48UFQFPN
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The STM32L452CEU3 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 STM32L452CEU3 is part of the STM32L452xx family, which is designed for low-power applications. It offers a comprehensive set of power-saving modes, including VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode, making it suitable for battery-powered devices and other low-power applications.

Key Specifications

Parameter Specification
Core Arm® 32-bit Cortex®-M4 CPU with FPU, up to 80 MHz
Flash Memory Up to 512 KB single bank Flash, proprietary code readout protection
SRAM 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)
Temperature Range -40 °C to 85 °C / 125 °C
Timers 1x 32-bit, 5x 16-bit (including 1 advanced motor-control timer), 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
Capacitive Sensing Channels Up to 21 channels
Package UFQFPN 48 7x7x0.55 mm

Key Features

  • Ultra-low-power with FlexPowerControl, including multiple power-saving modes (VBAT, Shutdown, Standby, Stop 2)
  • High-performance Arm® Cortex®-M4 core with FPU and DSP instructions
  • Memory Protection Unit (MPU) for enhanced security
  • Rich analog peripherals: 12-bit ADC, 12-bit DAC, operational amplifier, ultra-low-power comparators
  • Extensive communication interfaces: USB, I2C, SPI, USART, UART, LPUART, CAN, SDMMC
  • Up to 21 capacitive sensing channels for touchkey, linear, and rotary touch sensors
  • Multiple timers: 1x 32-bit, 5x 16-bit, including advanced motor-control and low-power timers
  • True random number generator, CRC calculation unit, and 96-bit unique ID
  • Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
  • All packages are ECOPACK2® compliant

Applications

The STM32L452CEU3 is suitable for a wide range of applications that require low power consumption and high performance. These include:

  • Battery-powered devices such as wearables, smart meters, and IoT devices
  • Industrial automation and control systems
  • Medical devices requiring low power and high precision
  • Automotive systems, especially those needing low-power modes
  • Consumer electronics, such as smart home devices and energy-efficient appliances

Q & A

  1. What is the core architecture of the STM32L452CEU3?

    The STM32L452CEU3 is based on the Arm® Cortex®-M4 32-bit RISC core with a Floating Point Unit (FPU).

  2. What are the power supply ranges for the STM32L452CEU3?

    The device operates from a 1.71 V to 3.6 V power supply using the internal LDO regulator, and from 1.05 to 1.32 V using an external SMPS.

  3. What are the key power-saving modes of the STM32L452CEU3?

    The device features VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode, among others.

  4. What types of timers are available on the STM32L452CEU3?

    The device includes 1x 32-bit timer, 5x 16-bit timers (including 1 advanced motor-control timer), and 2x low-power 16-bit timers.

  5. What analog peripherals are included in the STM32L452CEU3?

    The device features a 12-bit ADC, a 12-bit DAC, an operational amplifier, and two ultra-low-power comparators.

  6. What communication interfaces are available on the STM32L452CEU3?

    The device includes USB 2.0 full-speed, four I2C interfaces, three SPI interfaces, three USART interfaces, one UART, one LPUART, CAN (2.0B Active), and SDMMC.

  7. How many capacitive sensing channels does the STM32L452CEU3 support?

    The device supports up to 21 capacitive sensing channels.

  8. What is the package type for the STM32L452CEU3?

    The device is available in a UFQFPN 48 7x7x0.55 mm package.

  9. Is the STM32L452CEU3 compliant with any environmental standards?

    Yes, all packages are ECOPACK2® compliant.

  10. What development tools are supported for the STM32L452CEU3?

    The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.

  11. What is the temperature range for the STM32L452CEU3?

    The device operates in the -40 °C to 85 °C / 125 °C temperature range.

Product Attributes

Core Processor:ARM® Cortex®-M4
Core Size:32-Bit Single-Core
Speed:80MHz
Connectivity:CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART, USB
Peripherals:Brown-out Detect/Reset, DMA, PWM, WDT
Number of I/O:38
Program Memory Size:512KB (512K x 8)
Program Memory Type:Flash
EEPROM Size:- 
RAM Size:160K x 8
Voltage - Supply (Vcc/Vdd):1.71V ~ 3.6V
Data Converters:A/D 10x12b; D/A 1x12b
Oscillator Type:Internal
Operating Temperature:-40°C ~ 125°C (TA)
Mounting Type:Surface Mount
Package / Case:48-UFQFN Exposed Pad
Supplier Device Package:48-UFQFPN (7x7)
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Similar Products

Part Number STM32L452CEU3 STM32L452CEU6
Manufacturer STMicroelectronics STMicroelectronics
Product Status Active Active
Core Processor ARM® Cortex®-M4 ARM® Cortex®-M4
Core Size 32-Bit Single-Core 32-Bit Single-Core
Speed 80MHz 80MHz
Connectivity CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART, USB CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART, USB
Peripherals Brown-out Detect/Reset, DMA, PWM, WDT Brown-out Detect/Reset, DMA, PWM, WDT
Number of I/O 38 38
Program Memory Size 512KB (512K x 8) 512KB (512K x 8)
Program Memory Type Flash Flash
EEPROM Size - -
RAM Size 160K x 8 160K x 8
Voltage - Supply (Vcc/Vdd) 1.71V ~ 3.6V 1.71V ~ 3.6V
Data Converters A/D 10x12b; D/A 1x12b A/D 10x12b; D/A 1x12b
Oscillator Type Internal Internal
Operating Temperature -40°C ~ 125°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount
Package / Case 48-UFQFN Exposed Pad 48-UFQFN Exposed Pad
Supplier Device Package 48-UFQFPN (7x7) 48-UFQFPN (7x7)

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