-
The STM32L552xx devices are an ultra-low-power microcontrollers family (STM32L5 Series) based on the high-performance Arm® Cortex®-M33 32-bit RISC core. They operate at a frequency of up to 110 MHz.
The Cortex-M33 core features a single-precision floating-point unit (FPU), which supports all the Arm® single-precision data-processing instructions and all the data types. The Cortex-M33 core also implements a full set of DSP (digital signal processing) instructions, TrustZone aware support and a memory protection unit (MPU) which enhances the application’s security.
These devices embed high-speed memories (512 Kbytes of Flash memory and 256 Kbytes of SRAM), a flexible external memory controller (FSMC) for static memories (for devices with packages of 100 pins and more), an OctoSPI Flash memories interface (available on all packages) and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.
The STM32L552xx devices embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, secure and hide protection areas.
These devices offer two fast 12-bit ADC (5 Msps), two comparators, two operational amplifiers, two DAC channels, an internal voltage reference buffer, a low-power RTC, two general-purpose 32-bit timer, two 16-bit PWM timers dedicated to motor control, seven general-purpose 16-bit timers, and two 16-bit low-power timers. The devices support four digital filters for external sigma delta modulators (DFSDM). In addition, up to 22 capacitive sensing channels are available.
They also feature standard and advanced communication interfaces such as:
- Four I2Cs
- Three SPIs
- Three USARTs, two UARTs and one low-power UART
- Two SAIs
- One SDMMC
- One FDCAN
- USB device FS
- USB Type-C / USB power delivery controller
- HASH (SHA-256) hardware accelerator
The devices operate in the -40 to +85 °C (+105 °C junction) and -40 to +125 °C (+130 °C junction) temperature ranges from a 1.71 to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of low-power applications.
Some independent power supplies are supported like an analog independent supply input for ADC, DAC, OPAMPs and comparators, a 3.3 V dedicated supply input for USB and up to 14 I/Os, which can be supplied independently down to 1.08 V. A VBAT input allows to backup the RTC and backup the registers.
The STM32L552xx devices offer seven packages from 48-pin to 144-pin.Key Features
- Ultra-low-power with FlexPowerControl
- 1.71 V to 3.6 V power supply
- -40 °C to 85/125 °C temperature range
- Batch acquisition mode (BAM)
- 225 nA in VBAT mode: supply for RTC and 32x32-bit backup registers
- 33 nA Shutdown mode (5 wakeup pins)
- 110 nA Standby mode (5 wakeup pins)
- 385 nA Standby mode with RTC
- 3.6 μA Stop 2 with RTC
- 96 μA/MHz Run mode (LDO mode)
- 60 μA/MHz Run mode @ 3 V (SMPS step down converter mode)
- 5 μs wakeup from Stop mode
- Brownout reset (BOR) in all modes except shutdown
- Core
- Arm® 32-bit Cortex®-M33 CPU with TrustZone® and FPU
- ART Accelerator™
- 8 Kbytes instruction cache allowing 0-wait-state execution from Flash memory and external memories; frequency up to 110 MHz, MPU, 165 DMIPS and DSP instructions
- Performance benckmark
- 1.5 DMIPS/MHz (Drystone 2.1)
- 442 Coremark® (4.02 Coremark®/MHz @ 110 MHz
- Energy benchmark
- 402 ULPMark-CP® score
- 59.5 ULPMark-PP® score
- 27400 SecureMark-TLS® score
- Memories
- Up to 512 Kbytes Flash, two banks read-while-write
- 256 Kbytes of SRAM including 64 Kbytes with hardware parity check
- External memory interface supporting SRAM, PSRAM, NOR, NAND and FRAM memories
- OCTOSPI memory interface
- General-purpose input/outputs
- Up to 114 fast I/Os with interrupt capability most 5 V-tolerant and up to 14 I/Os with independent supply down to 1.08 V
- Security
- Arm® TrustZone® with the ARMv8-M mainline security extension
- Up to 8 configurable SAU regions
- RDP, active tamper, secure firmware upgrade support, secure hide protection
- TrustZone aware and securable peripherals
- Power management
- Embedded regulator (LDO) with three configurable range output to supply the digital circuitry
- SMPS step down converter
- External SMPS support
- Clock management
- 4 to 48 MHz crystal oscillator
- 32 kHz crystal oscillator for RTC (LSE)
- Internal 16 MHz factory-trimmed RC (±1%)
- Internal low-power 32 kHz RC (±5%)
- Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25% accuracy)
- Internal 48 MHz with clock recovery
- 3 PLLs for system clock, USB, audio, ADC
- Up to 16 timers and 2 watchdogs
- 16x timers: 2 x 16-bit advanced motor-control, 2 x 32-bit and 5 x 16-bit general purpose, 2x 16-bit basic, 3x low-power 16-bit timers (available in Stop mode), 2x watchdogs, 2x SysTick timer
- RTC with HW calendar, alarms and calibration
- Up to 19 communication peripherals
- 1x USB Type-C™/ USB power delivery controller
- 1x USB 2.0 full-speed crystal less solution, LPM and BCD
- 2x SAIs (serial audio interface)
- 4x I2C FM+(1 Mbit/s), SMBus/PMBus
- 6x USARTs (ISO 7816, LIN, IrDA, modem)
- 3x SPIs (7x SPIs with USART and OCTOSPI in SPI mode)
- 1x FDCAN controller
- 1x SDMMC interface
- 2 DMA controller
- 14 DMA channels
- Up to 22 capacitive sensing channels:
- Support touch key, linear and rotary touch sensors
- Rich analog peripherals (independent supply)
- 2x 12-bit ADC 5 Msps, up to 16-bit with hardware oversampling, 200 μA/Msps
- 2x 12-bit DAC, low-power sample and hold
- 2x operational amplifiers with built-in PGA
- 2x ultra-low-power comparators
- 4x digital filters for sigma delta modulator
- True random number generator
- CRC calculation unit
- HASH (SHA-256) hardware accelerator
- Debug
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell (ETM)
- 96-bit unique ID
- Ultra-low-power with FlexPowerControl
Circuit Diagram
Sample & Buy
| Part Number | Package | Packing Type | Temperature (°C) | Marketing Status | Budgetary Price (US$)* | Quantity | ECCN (US) | Country of Origin | More info | Order from Distributors | Order from ST | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| STM32L552CCT6 | - | - | -40 | 85 |
Proposal
|
- | - | - | - | No availability of distributors reported, please contact our sales office | ||
| STM32L552CCU6 | - | - | -40 | 85 |
Proposal
|
- | - | - | - | No availability of distributors reported, please contact our sales office | ||
STM32L552CCT6
Package
-Packing Type
-Unit Price (US$)
*STM32L552CCU6
Package
-Packing Type
-Unit Price (US$)
*(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
Featured Videos
MadeForSTM32™ is a new quality label delivered by ST, which is granted after an evaluation process. It helps engineers identify third party solutions with the highest level of integration and quality for the STM32 microcontrollers' ecosystem. MadeForSTM32™ is offered to members of the ST Partner Program who want to go one step further in our collaboration, with the overall objective of contributing to a high-quality STM32 ecosystem.
The STM32Cube.AI is an extension pack of the widely used STM32CubeMX configuration and code generation tool enabling AI on STM32 Arm® Cortex®-M-based microcontrollers.
Get in depth knowledge with STM32 microcontrollers On Line Trainings
Development Tools
-
-
Picture Part number Manufacturer Description Arm Keil ULINKplus Arm Keil High-performance debug adapter, isolated, with JTAG, SWD, SWV, power measurement, and test I/O Arm Keil ULINKpro Arm Keil High-performance debug adapter via JTAG or SWD and streaming trace via SWV (data/event trace) or ETM (instruction trace) CYCLONE P&E Microcomputer Systems Automated, Stand-Alone Production Programmer, Debug & Test. CYCLONE FX P&E Microcomputer Systems Automated, Stand-Alone Production Programmer, Debug & Test. 
FlashPro Elprotronic Flash programmer for STM8 and ARM based MCUs. Flasher ATE SEGGER Microcontroller Flasher ATE is a gang-programmer for mass production Flasher Portable Plus SEGGER Microcontroller Flasher Portable Plus is a battery driven programming system Flasher Secure SEGGER Microcontroller Flasher Secure is a secure mass production programming system 
GangPro Elprotronic Gang programmer for STM8 and ARM based MCUs. I-jet IAR Systems Debug probe I-jet Trace IAR Systems Debug trace probe 
J-Link SEGGER Microcontroller Segger J-Link debug probe for STM32 J-Trace Pro for Cortex-M SEGGER Microcontroller SEGGER J-Trace Pro debug and trace probe Multilink ACP P&E Microcomputer Systems Debug Probe for ARM devices. Multilink Universal FX P&E Microcomputer Systems High-Speed Debug Probe for ARM and other devices. 
ST-LINK/V2 ST ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 
STLINK-V3SET ST STLINK-V3 modular in-circuit debugger and programmer for STM32/STM8 Part NumberHigh-performance debug adapter, isolated, with JTAG, SWD, SWV, power measurement, and test I/O
High-performance debug adapter via JTAG or SWD and streaming trace via SWV (data/event trace) or ETM (instruction trace)
Automated, Stand-Alone Production Programmer, Debug & Test.
Automated, Stand-Alone Production Programmer, Debug & Test.
Flash programmer for STM8 and ARM based MCUs.
Flasher ATE is a gang-programmer for mass production
Flasher Portable Plus is a battery driven programming system
Flasher Secure is a secure mass production programming system
Gang programmer for STM8 and ARM based MCUs.
Debug probe
Debug trace probe
Segger J-Link debug probe for STM32
SEGGER J-Trace Pro debug and trace probe
Debug Probe for ARM devices.
High-Speed Debug Probe for ARM and other devices.
ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32
STLINK-V3 modular in-circuit debugger and programmer for STM32/STM8
-
-
-
Picture Part number Manufacturer Description Arm Development Studio Arm Keil Comprehensive embedded toolchain for any Arm-based device: Eclipse-based IDE/debugger, C/C++ Compiler, CMSIS, performance analyzer, graphics debugger Arm Keil MDK Arm Keil Complete software development solution for all STM32 devices. Includes C/C++ Compiler, IDE/Debugger, CMSIS, RTOS, middleware CXSTM32 Cosmic Software STM32 Full Development Package (Compiler + Debugger) CoIDE CooCox CooCox CoIDE, a free and highly-integrated software development environment for ARM Cortex MCUs Compilers for ARM MikroElektronika mikroC PRO for ARM, mikroBasic PRO for ARM and mikroPascal PRO for ARM are fully-featured compilers for ARM® Cortex®-M0, M0+, M3, M4, and M7 microcontrollers. CrossWorks Rowley Rowley Associates CrossWorks, integrated development environment with JTAG Flash download and debug EMP-Thunder Emprog Emprog ThunderBench, fully integrated and well-crafted development C/C++ tools for ARM Cortex EXP-TRACE ExpressLogic Express Logic TraceX Graphical finetuning tool FLASHER-STM32 ST STM32 Flash loader demonstrator (UM0462) IAR C-RUN for Arm IAR Systems Run-time analysis tool; add-on product to IAR Embedded Workbench for Arm IAR C-STAT IAR Systems Static analysis tool; add-on product to IAR Embedded Workbench IAR Embedded Workbench for Arm IAR Systems Integrated Development Environment IAR visualSTATE IAR Systems State-machine modelling tool MULTI Green Hills Software GreenHills integrated development and debug environment for embedded applications using C and C++ RIDE-STM32 Raisonance Raisonance branded integrated development environment for STM32 MCUs Remedy Bootloader Package RoweBots Remedy Bootloader - Easy Updates and Advanced Protection. Remedy Datalogger Package RoweBots Remedy Datalogger with capabilities for dynamic remote data logging and control. SEGGER Embedded Studio SEGGER Microcontroller Cross-platform Integrated Development Environment (IDE) for managing, building, testing, and deploying embedded applications 
ST MCU FINDER ST STM32 and STM8 product finder for mobile devices and desktops 
ST-MCU-FINDER-PC ST STM32 and STM8 product finder for desktops STM-STUDIO-STM32 ST STM Studio run-time variables monitoring and visualization tool for STM32 microcontrollers 
STM32CubeIDE ST Integrated Development Environment for STM32 
STM32CubeMX ST STM32Cube initialization code generator 
STM32CubeProg ST STM32CubeProgrammer software for programming STM32 products STSW-STM32095 ST STM32CubeMX Eclipse plug in for STM32 configuration and initialization C code generation STSW-STM32102 ST STM32 Virtual COM Port Driver STSW-STM32103 ST STM32 Serial Wire Viewer (SWV) and Embedded Trace Macrocell (ETM)capabilities. Examples and technical note. STSW-STM32153 ST STM32-BLE Toolbox for Android (AN4571) STVP-LIB-STM32 ST STVP programming toolkit: C++ source files for creating PC programming interface STVP-STM32 ST ST Visual Programmer STM32 SW4STM32 AC6 System Workbench for STM32: free IDE on Windows, Linux and OS X Storyboard Designer Crank Software Development Tools to create optimized GUIs. TASKINGVX-STM32 TASKING Altium's C/C++ compiler and debugger tools for ARM based MCUs 
TrueSTUDIO Atollic A powerful eclipse based C/C++ integrated development tool for your STM32 projects winIDEA-STM32 iSYSTEM iSYSTEM's complete software development and test solution for the STM32 MCUs Part NumberComprehensive embedded toolchain for any Arm-based device: Eclipse-based IDE/debugger, C/C++ Compiler, CMSIS, performance analyzer, graphics debugger
Complete software development solution for all STM32 devices. Includes C/C++ Compiler, IDE/Debugger, CMSIS, RTOS, middleware
STM32 Full Development Package (Compiler + Debugger)
CooCox CoIDE, a free and highly-integrated software development environment for ARM Cortex MCUs
mikroC PRO for ARM, mikroBasic PRO for ARM and mikroPascal PRO for ARM are fully-featured compilers for ARM® Cortex®-M0, M0+, M3, M4, and M7 microcontrollers.
Rowley Associates CrossWorks, integrated development environment with JTAG Flash download and debug
Emprog ThunderBench, fully integrated and well-crafted development C/C++ tools for ARM Cortex
Express Logic TraceX Graphical finetuning tool
STM32 Flash loader demonstrator (UM0462)
Run-time analysis tool; add-on product to IAR Embedded Workbench for Arm
Static analysis tool; add-on product to IAR Embedded Workbench
Integrated Development Environment
State-machine modelling tool
GreenHills integrated development and debug environment for embedded applications using C and C++
Raisonance branded integrated development environment for STM32 MCUs
Remedy Bootloader - Easy Updates and Advanced Protection.
Remedy Datalogger with capabilities for dynamic remote data logging and control.
Cross-platform Integrated Development Environment (IDE) for managing, building, testing, and deploying embedded applications
STM32 and STM8 product finder for mobile devices and desktops
STM32 and STM8 product finder for desktops
STM Studio run-time variables monitoring and visualization tool for STM32 microcontrollers
Integrated Development Environment for STM32
STM32Cube initialization code generator
STM32CubeProgrammer software for programming STM32 products
STM32CubeMX Eclipse plug in for STM32 configuration and initialization C code generation
STM32 Virtual COM Port Driver
STM32 Serial Wire Viewer (SWV) and Embedded Trace Macrocell (ETM)capabilities. Examples and technical note.
STM32-BLE Toolbox for Android (AN4571)
STVP programming toolkit: C++ source files for creating PC programming interface
ST Visual Programmer STM32
System Workbench for STM32: free IDE on Windows, Linux and OS X
Development Tools to create optimized GUIs.
Altium's C/C++ compiler and debugger tools for ARM based MCUs
A powerful eclipse based C/C++ integrated development tool for your STM32 projects
iSYSTEM's complete software development and test solution for the STM32 MCUs
-
Ecosystems
Embedded Software
-
-
Picture Part number Manufacturer Description CycloneCrypto Oryx Embedded Cryptographic library CycloneSSL Oryx Embedded Embedded SSL/TLS library CycloneTCP Oryx Embedded Embedded TCP/IP stack (dual IPv4/IPv6) EXP-FILE ExpressLogic Express Logic FileX file system EXP-RTOS ExpressLogic Express Logic ThreadX Real time operating system (RTOS) EXP-TCP ExpressLogic Express Logic NetX and NetX Duo TCP/IP stacks EXP-USB ExpressLogic Express Logic USBX USB stack FreeRTOS Kernel AWS The FreeRTOS kernel is an open source real time operating system and the de-facto standard solution for microcontrollers and small microprocessors HCC-Bootloaders HCC Embedded Storage, USB or Serial Bootloader for STM32, from HCC Embedded HCC-FAT HCC Embedded FAT file systems from HCC Embedded HCC-FFS HCC Embedded All Flashs File Systems with fail-safe mechanisms for STM32, from HCC Embedded HCC-MISRA-TCP/IP HCC Embedded TCP/IP v4 or v6 stack for STM32, from HCC Embedded HCC-USB HCC Embedded USB Host & Device stacks for STM32, from HCC Embedded I-CUBE-EMBOS SEGGER Microcontroller embOS software expansion for STM32Cube I-CUBE-UNISON RoweBots UNISON software expansion for STM32Cube OPENRTOS WITTENSTEIN high integrity systems OPENRTOS, The High Performance RTOS from WITTENSTEIN high integrity systems Prevas Simple Connect Prevas A communication infrastructure that provides a secure instant communication between clients and devices connected through the Internet. ProvenCore-M Prove & Run High security operating system for STM32 Arm Cortex-M microcontrollers. SAFERTOS WITTENSTEIN high integrity systems SAFERTOS, The Safety Critical RTOS from WITTENSTEIN high integrity systems SAFERTOS CORE WITTENSTEIN high integrity systems SAFERTOS CORE, The RTOS for embedded systems that need to consider safety, but do not require certification STM32-WMA/DEC ST Audio Engine WMA Decoder and Utilities Storyboard Engine Crank Software Embedded Software to create optimized GUIs. UNISON Busses RoweBots UNISON RTOS provides the possibility to work with the core serial busses. UNISON File System RoweBots UNISON FATFS and UNISON Power Safe FAT File System UNISON Kernel RoweBots UNISON Real Time Operating System Kernel UNISON Security RoweBots UNISON RTOS Security Protocols UNISON TCP/IP IPv6/IPv4 Networking Stack RoweBots Complete networking server with or without IPv6 and other network components. UNISON USB RoweBots UNISON USB Embedded Host Server, Embedded Device Server, OTG Server. UNISON Wireless RoweBots Supports various wireless modules. X-CUBE-DSPDEMO ST Digital Signal Processing with STM32, software expansion for STM32Cube (AN4841) X-CUBE-IAP-USART ST STM32Cube in-application programming using the USART embedded software (AN4657) X-CUBE-SMBUS ST STM32Cube SMBus/PMBus embedded software (AN4502) cURL wolfSSL cURL is a computer software project providing a library for transferring data using various protocols. 
embOS SEGGER Microcontroller embOS priority-controlled RTOS for embedded real time application from Segger 
embOS/IP SEGGER Microcontroller embOS/IP highly efficient IP stack from Segger emtas-CANopen EMTAS CANopen Protocol Stack for STM32 wolfBoot wolfSSL wolfBoot is open source, commercial grade, embedded security software. wolfCrypt wolfSSL wolfCrypt is open source, commercial grade, FIPS-validated embedded security software. wolfMQTT wolfSSL wolfMQTT is open source, commercial grade, embedded security software. wolfSSH wolfSSL wolfSSH is open source, commercial grade, embedded security software. wolfSSL wolfSSL wolfSSL is open source, commercial grade, embedded security software. wolfSSL JNI and JSSE Provider wolfSSL wolfSSL is open source, commercial grade, embedded security software. wolfTPM wolfSSL wolfTPM is open source, commercial grade, embedded security software. Part NumberCryptographic library
Embedded SSL/TLS library
Embedded TCP/IP stack (dual IPv4/IPv6)
Express Logic FileX file system
Express Logic ThreadX Real time operating system (RTOS)
Express Logic NetX and NetX Duo TCP/IP stacks
Express Logic USBX USB stack
The FreeRTOS kernel is an open source real time operating system and the de-facto standard solution for microcontrollers and small microprocessors
Storage, USB or Serial Bootloader for STM32, from HCC Embedded
FAT file systems from HCC Embedded
All Flashs File Systems with fail-safe mechanisms for STM32, from HCC Embedded
TCP/IP v4 or v6 stack for STM32, from HCC Embedded
USB Host & Device stacks for STM32, from HCC Embedded
embOS software expansion for STM32Cube
UNISON software expansion for STM32Cube
OPENRTOS, The High Performance RTOS from WITTENSTEIN high integrity systems
A communication infrastructure that provides a secure instant communication between clients and devices connected through the Internet.
High security operating system for STM32 Arm Cortex-M microcontrollers.
SAFERTOS, The Safety Critical RTOS from WITTENSTEIN high integrity systems
SAFERTOS CORE, The RTOS for embedded systems that need to consider safety, but do not require certification
Audio Engine WMA Decoder and Utilities
Embedded Software to create optimized GUIs.
UNISON RTOS provides the possibility to work with the core serial busses.
UNISON FATFS and UNISON Power Safe FAT File System
UNISON Real Time Operating System Kernel
UNISON RTOS Security Protocols
Complete networking server with or without IPv6 and other network components.
UNISON USB Embedded Host Server, Embedded Device Server, OTG Server.
Supports various wireless modules.
Digital Signal Processing with STM32, software expansion for STM32Cube (AN4841)
STM32Cube in-application programming using the USART embedded software (AN4657)
STM32Cube SMBus/PMBus embedded software (AN4502)
cURL is a computer software project providing a library for transferring data using various protocols.
embOS priority-controlled RTOS for embedded real time application from Segger
embOS/IP highly efficient IP stack from Segger
CANopen Protocol Stack for STM32
wolfBoot is open source, commercial grade, embedded security software.
wolfCrypt is open source, commercial grade, FIPS-validated embedded security software.
wolfMQTT is open source, commercial grade, embedded security software.
wolfSSH is open source, commercial grade, embedded security software.
wolfSSL is open source, commercial grade, embedded security software.
wolfSSL is open source, commercial grade, embedded security software.
wolfTPM is open source, commercial grade, embedded security software.
-
Evaluation Tools
Support and Applications
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| STM32L552CCT6 |
Proposal
|
- | Industrial | - |
|
| STM32L552CCU6 |
Proposal
|
- | Industrial | - |
|
STM32L552CCT6
Package:
-Material Declaration**:
STM32L552CCU6
Package:
-Material Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
