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STM32L552CET6

STM32L552CET6

STMicroelectronics
ARM® Cortex®-M33 STM32L5 Microcontroller IC 32-Bit 110MHz 512KB (512K x 8) FLASH 48-LQFP (7x7)
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Overview

The STM32L552CET6 is a high-performance ultra-low-power microcontroller based on the ARM Cortex-M33 core with TrustZone for hardware-level security. Operating at up to 110MHz, it integrates 512KB of Flash and 256KB of RAM, making it ideal for power-sensitive applications that require data isolation and secure boot capabilities.

Why Choose This Part

This MCU offers a unique balance of security and efficiency, featuring an integrated SMPS for optimized power consumption and hardware-based root of trust. Its rich peripheral set, including QSPI and USB, supports complex designs without sacrificing the ultra-low-power profile required for portable electronics.

Applications

Secure IoT End-nodes
Utilizing TrustZone to isolate sensitive cryptographic keys and secure firmware from general application code.
Battery-Operated Sensors
Leveraging multiple low-power modes including a 62 uA/MHz run mode and Batch Acquisition Mode (BAM) to extend battery life.
Industrial Communications
Integrating CANbus, USB, and multiple UART/SPI interfaces for robust fieldbus and peripheral connectivity.
Medical Wearables
Combining high-resolution 12-bit ADCs and DACs with a small 48-LQFP footprint for compact physiological monitoring.

Key Specifications

Speed 110MHz
RAM Size 256K x 8
Core Size 32-Bit
Peripherals Brown-out Detect/Reset, DMA, PWM, WDT
Connectivity CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART, USB
Mounting Type Surface Mount
Number of I/O 38
Core Processor ARM Cortex-M33
Package / Case 48-LQFP
Data Converters A/D 9x12b; D/A 2x12b
Oscillator Type Internal
Program Memory Size 512KB (512K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 48-LQFP (7x7)
Voltage - Supply (Vcc/Vdd) 1.71V ~ 3.6V

Getting Started

Developers can begin evaluation with the NUCLEO-L552ZE-Q development board. The device is fully supported by the STM32Cube ecosystem, including STM32CubeIDE, and utilizes the TF-M (Trusted Firmware-M) reference implementation for rapid TrustZone deployment.

Part of STM32L5 family » STM32L552

STM32L552 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number I/O Pins Package ADC/DAC Stock
STM32L552CET6 (this part) 38 LQFP-48 A/D 9x12b; D/A 2x12b —
STM32L552VET6 83 LQFP-100 A/D 16x12b; D/A 2x.. 1,937
STM32L552RET6 52 LQFP-64 A/D 16x12b; D/A 2x.. 901
STM32L552ZET6 111 LQFP-144 A/D 14x12b; D/A 2x.. —

Categories

Microcontrollers > STMicroelectronics Wearables & Medical > Ultra-Low Power MCUs IoT & Smart Devices > IoT Security & Crypto